{"pageNumber":"240","pageRowStart":"5975","pageSize":"25","recordCount":16506,"records":[{"id":70031985,"text":"70031985 - 2008 - Whole-stream response to nitrate loading in three streams draining agricultural landscapes","interactions":[],"lastModifiedDate":"2016-05-27T11:48:17","indexId":"70031985","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Whole-stream response to nitrate loading in three streams draining agricultural landscapes","docAbstract":"

Physical, chemical, hydrologic, and biologic factors affecting nitrate (NO3 −) removal were evaluated in three agricultural streams draining orchard/dairy and row crop settings. Using 3-d “snapshots” during biotically active periods, we estimated reach-level NO3 − sources, NO3 − mass balance, in-stream processing (nitrification, denitrification, and NO3 − uptake), and NO3 − retention potential associated with surface water transport and ground water discharge. Ground water contributed 5 to 11% to stream discharge along the study reaches and 8 to 42% of gross NO3 − input. Streambed processes potentially reduced 45 to 75% of ground water NO3 − before discharge to surface water. In all streams, transient storage was of little importance for surface water NO3 − retention. Estimated nitrification (1.6–4.4 mg N m−2 h−1) and unamended denitrification rates (2.0–16.3 mg N m−2 h−1) in sediment slurries were high relative to pristine streams. Denitrification of NO3 − was largely independent of nitrification because both stream and ground water were sources of NO3 − Unamended denitrification rates extrapolated to the reach-scale accounted for <5% of NO3 − exported from the reaches minimally reducing downstream loads. Nitrate retention as a percentage of gross NO3 − inputs was >30% in an organic-poor, autotrophic stream with the lowest denitrification potentials and highest benthic chlorophyll a, photosynthesis/respiration ratio, pH, dissolved oxygen, and diurnal NO3 − variation. Biotic processing potentially removed 75% of ground water NO3 − at this site, suggesting an important role for photosynthetic assimilation of ground water NO3 − relative to subsurface denitrification as water passed directly through benthic diatom beds.

","language":"English","publisher":"ACSESS","doi":"10.2134/jeq2007.0187","issn":"00472425","usgsCitation":"Duff, J., Tesoriero, A., Richardson, W.B., Strauss, E., and Munn, M., 2008, Whole-stream response to nitrate loading in three streams draining agricultural landscapes: Journal of Environmental Quality, v. 37, no. 3, p. 1133-1144, https://doi.org/10.2134/jeq2007.0187.","productDescription":"12 p.","startPage":"1133","endPage":"1144","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":242461,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214713,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2134/jeq2007.0187"}],"volume":"37","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bd092e4b08c986b32ef28","contributors":{"authors":[{"text":"Duff, J.H.","contributorId":60377,"corporation":false,"usgs":true,"family":"Duff","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":434001,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tesoriero, A. J.","contributorId":99127,"corporation":false,"usgs":true,"family":"Tesoriero","given":"A. J.","affiliations":[],"preferred":false,"id":434003,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Richardson, W. B.","contributorId":16363,"corporation":false,"usgs":true,"family":"Richardson","given":"W.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":433999,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Strauss, E.A.","contributorId":26010,"corporation":false,"usgs":true,"family":"Strauss","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":434000,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Munn, M.D.","contributorId":77908,"corporation":false,"usgs":true,"family":"Munn","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":434002,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70033098,"text":"70033098 - 2008 - Numerical model for the uptake of groundwater contaminants by phreatophytes","interactions":[],"lastModifiedDate":"2020-03-10T14:55:05","indexId":"70033098","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Numerical model for the uptake of groundwater contaminants by phreatophytes","docAbstract":"Conventional solute transport models do not adequately account for the effects of phreatophytic plant systems on contaminant concentrations in shallow groundwater systems. A numerical model was developed and tested to simulate threedimensional reactive solute transport in a heterogeneous porous medium. Advective-dispersive transport is coupled to biodegradation, sorption, and plantbased attenuation processes including plant uptake and sorption by plant roots. The latter effects are a function of the physical-chemical properties of the individual solutes and plant species. Models for plant uptake were tested and evaluated using the experimental data collected at a field site comprised of hybrid poplar trees. A non-linear equilibrium isotherm model best represented site conditions.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"WIT Transactions on Ecology and the Environment","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"9th International Conference on Modelling, Monitoring and Management of Water Pollution, Water Pollution 2008","conferenceDate":"June 9-11,2008","conferenceLocation":"Alicante, Spain","language":"English","doi":"10.2495/WP080361","issn":"17433","isbn":"9781845641153","usgsCitation":"Widdowson, M., El-Sayed, A., and Landmeyer, J., 2008, Numerical model for the uptake of groundwater contaminants by phreatophytes, in WIT Transactions on Ecology and the Environment, v. 111, Alicante, Spain, June 9-11,2008, p. 371-379, https://doi.org/10.2495/WP080361.","productDescription":"9 p.","startPage":"371","endPage":"379","numberOfPages":"9","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":476696,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2495/wp080361","text":"Publisher Index Page"},{"id":240980,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213362,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2495/WP080361"}],"volume":"111","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a68f1e4b0c8380cd73a94","contributors":{"authors":[{"text":"Widdowson, M.A.","contributorId":46262,"corporation":false,"usgs":true,"family":"Widdowson","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":439364,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"El-Sayed, A.","contributorId":93709,"corporation":false,"usgs":true,"family":"El-Sayed","given":"A.","affiliations":[],"preferred":false,"id":439366,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Landmeyer, J. E.","contributorId":91140,"corporation":false,"usgs":true,"family":"Landmeyer","given":"J. E.","affiliations":[],"preferred":false,"id":439365,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031894,"text":"70031894 - 2008 - Limited occurrence of denitrification in four shallow aquifers in agricultural areas of the United States","interactions":[],"lastModifiedDate":"2025-05-08T15:24:28.191024","indexId":"70031894","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Limited occurrence of denitrification in four shallow aquifers in agricultural areas of the United States","docAbstract":"

The ability of natural attenuation to mitigate agricultural nitrate contamination in recharging aquifers was investigated in four important agricultural settings in the United States. The study used laboratory analyses, field measurements, and flow and transport modeling for monitoring well transects (0.5 to 2.5 km in length) in the San Joaquin watershed, California, the Elkhorn watershed, Nebraska, the Yakima watershed, Washington, and the Chester watershed, Maryland. Ground water analyses included major ion chemistry, dissolved gases, nitrogen and oxygen stable isotopes, and estimates of recharge date. Sediment analyses included potential electron donors and stable nitrogen and carbon isotopes. Within each site and among aquifer-based medians, dissolved oxygen decreases with ground water age, and excess N2 from denitrification increases with age. Stable isotopes and excess N2 imply minimal denitrifying activity at the Maryland and Washington sites, partial denitrification at the California site, and total denitrification across portions of the Nebraska site. At all sites, recharging electron donor concentrations are not sufficient to account for the losses of dissolved oxygen and nitrate, implying that relict, solid phase electron donors drive redox reactions. Zero-order rates of denitrification range from 0 to 0.14 μmol N L−1d−1, comparable to observations of other studies using the same methods. Many values reported in the literature are, however, orders of magnitude higher, which is attributed to a combination of method limitations and bias for selection of sites with rapid denitrification. In the shallow aquifers below these agricultural fields, denitrification is limited in extent and will require residence times of decades or longer to mitigate modern nitrate contamination.

","language":"English","publisher":"ACSESS","doi":"10.2134/jeq2006.0419","issn":"00472425","usgsCitation":"Green, C., Puckett, L., Böhlke, J., Bekins, B., Phillips, S., Kauffman, L.J., Denver, J.M., and Johnson, H., 2008, Limited occurrence of denitrification in four shallow aquifers in agricultural areas of the United States: Journal of Environmental Quality, v. 37, no. 3, p. 994-1009, https://doi.org/10.2134/jeq2006.0419.","productDescription":"16 p.","startPage":"994","endPage":"1009","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":242623,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4791e4b0c8380cd678d5","contributors":{"authors":[{"text":"Green, C.T.","contributorId":73785,"corporation":false,"usgs":true,"family":"Green","given":"C.T.","email":"","affiliations":[],"preferred":false,"id":433620,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Puckett, L.J.","contributorId":27503,"corporation":false,"usgs":true,"family":"Puckett","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":433617,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Böhlke, J.K. 0000-0001-5693-6455","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":96696,"corporation":false,"usgs":true,"family":"Böhlke","given":"J.K.","affiliations":[],"preferred":false,"id":433622,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bekins, B.A.","contributorId":98309,"corporation":false,"usgs":true,"family":"Bekins","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":433623,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Phillips, S.P.","contributorId":38172,"corporation":false,"usgs":true,"family":"Phillips","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":433618,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kauffman, L. J. 0000-0003-4564-0362","orcid":"https://orcid.org/0000-0003-4564-0362","contributorId":65217,"corporation":false,"usgs":true,"family":"Kauffman","given":"L.","email":"","middleInitial":"J.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":false,"id":433619,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Denver, J. M.","contributorId":100356,"corporation":false,"usgs":true,"family":"Denver","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":433624,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Johnson, H.M. 0000-0002-7571-4994","orcid":"https://orcid.org/0000-0002-7571-4994","contributorId":75339,"corporation":false,"usgs":true,"family":"Johnson","given":"H.M.","affiliations":[],"preferred":false,"id":433621,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70031732,"text":"70031732 - 2008 - Acetylene as fast food: Implications for development of life on anoxic primordial earth and in the outer solar system","interactions":[],"lastModifiedDate":"2018-10-22T09:05:38","indexId":"70031732","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":912,"text":"Astrobiology","active":true,"publicationSubtype":{"id":10}},"title":"Acetylene as fast food: Implications for development of life on anoxic primordial earth and in the outer solar system","docAbstract":"

Acetylene occurs, by photolysis of methane, in the atmospheres of jovian planets and Titan. In contrast, acetylene is only a trace component of Earth's current atmosphere. Nonetheless, a methane-rich atmosphere has been hypothesized for early Earth; this atmosphere would also have been rich in acetylene. This poses a paradox, because acetylene is a potent inhibitor of many key anaerobic microbial processes, including methanogenesis, anaerobic methane oxidation, nitrogen fixation, and hydrogen oxidation. Fermentation of acetylene was discovered ∼25 years ago, and Pelobacter acetylenicuswas shown to grow on acetylene by virtue of acetylene hydratase, which results in the formation of acetaldehyde. Acetaldehyde subsequently dismutates to ethanol and acetate (plus some hydrogen). However, acetylene hydratase is specific for acetylene and does not react with any analogous compounds. We hypothesize that microbes with acetylene hydratase played a key role in the evolution of Earth's early biosphere by exploiting an available source of carbon from the atmosphere and in so doing formed protective niches that allowed for other microbial processes to flourish. Furthermore, the presence of acetylene in the atmosphere of a planet or planetoid could possibly represent evidence for an extraterrestrial anaerobic ecosystem. Astrobiology 8, 45–58.

","language":"English","publisher":"Mary Ann Liebert","doi":"10.1089/ast.2007.0183","issn":"15311074","usgsCitation":"Oremland, R., and Voytek, M., 2008, Acetylene as fast food: Implications for development of life on anoxic primordial earth and in the outer solar system: Astrobiology, v. 8, no. 1, p. 45-58, https://doi.org/10.1089/ast.2007.0183.","productDescription":"14 p.","startPage":"45","endPage":"58","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":212579,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1089/ast.2007.0183"},{"id":240082,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e68fe4b0c8380cd474d1","contributors":{"authors":[{"text":"Oremland, R.S.","contributorId":97512,"corporation":false,"usgs":true,"family":"Oremland","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":432901,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voytek, M.A.","contributorId":44272,"corporation":false,"usgs":true,"family":"Voytek","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":432900,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035171,"text":"70035171 - 2008 - Reducing sedimentation of depressional wetlands in agricultural landscapes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:53","indexId":"70035171","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Reducing sedimentation of depressional wetlands in agricultural landscapes","docAbstract":"Depressional wetlands in agricultural landscapes are easily degraded by sediments and contaminants accumulated from their watersheds. Several best management practices can reduce transport of sediments into wetlands, including the establishment of vegetative buffers. We summarize the sources, transport dynamics, and effect of sediments, nutrients, and contaminants that threaten wetlands and the current knowledge of design and usefulness of grass buffers for protecting isolated wetlands. Buffer effectiveness is dependent on several factors, including vegetation structure, buffer width, attributes of the surrounding watershed (i.e., area, vegetative cover, slope and topography, soil type and structure, soil moisture, amount of herbicides and pesticides applied), and intensity and duration of rain events. To reduce dissolved contaminants from runoff, the water must infiltrate the soil where microbes or other processes can break down or sequester contaminants. But increasing infiltration also diminishes total water volume entering a wetland, which presents threats to wetland hydrology in semi-arid regions. Buffer effectiveness may be enhanced significantly by implementing other best management practices (e.g., conservation tillage, balancing input with nutrient requirements for livestock and crops, precision application of chemicals) in the surrounding watershed to diminish soil erosion and associated contaminant runoff. Buffers require regular maintenance to remove sediment build-up and replace damaged or over-mature vegetation. Further research is needed to establish guidelines for effective buffer width and structure, and such efforts should entail a coordinated, regional, multi-scale, multidisciplinary approach to evaluate buffer effectiveness and impacts. Direct measures in \"real-world\" systems and field validations of buffer-effectiveness models are crucial next steps in evaluating how grass buffers will impact the abiotic and biotic variables attributes that characterize small, isolated wetlands. ?? 2008 The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1672/07-84.1","issn":"02775212","usgsCitation":"Skagen, S., Melcher, C., and Haukos, D., 2008, Reducing sedimentation of depressional wetlands in agricultural landscapes: Wetlands, v. 28, no. 3, p. 594-604, https://doi.org/10.1672/07-84.1.","startPage":"594","endPage":"604","numberOfPages":"11","costCenters":[],"links":[{"id":215273,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/07-84.1"},{"id":243063,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a3cfe4b0e8fec6cdb9a9","contributors":{"authors":[{"text":"Skagen, S. K. 0000-0002-6744-1244","orcid":"https://orcid.org/0000-0002-6744-1244","contributorId":31348,"corporation":false,"usgs":true,"family":"Skagen","given":"S. K.","affiliations":[],"preferred":false,"id":449580,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Melcher, Cynthia","contributorId":101593,"corporation":false,"usgs":true,"family":"Melcher","given":"Cynthia","affiliations":[],"preferred":false,"id":449581,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haukos, D.A.","contributorId":17188,"corporation":false,"usgs":true,"family":"Haukos","given":"D.A.","affiliations":[],"preferred":false,"id":449579,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70030261,"text":"70030261 - 2008 - Simulated natural hydrologic regime of an intermountain playa conservation site","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030261","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Simulated natural hydrologic regime of an intermountain playa conservation site","docAbstract":"An intermountain playa wetland preserve in Colorado's San Luis Valley was studied to assess how its current hydrologic function compares to its natural hydrologic regime. Current hydrologic conditions were quantified, and on-site effects of off-site water use were assessed. A water-budget model was developed to simulate an unaltered (i.e., natural) hydrologic regime, and simulated natural conditions were compared to observed conditions. From 1998-2002, observed stream inflows accounted for ??? 80% of total annual water inputs. No ground water discharged to the wetland. Evapotranspiration (ET) accounted for ??? 69% of total annual water loss. Simulated natural conditions differed substantially from current altered conditions with respect to depth, variability, and frequency of flooding. During 1998-2002, observed monthly mean surface-water depth was 65% lower than under simulated natural conditions. Observed monthly variability in water depth range from 129% greater (May) to 100% less (September and October) than simulated. As observed, the wetland dried completely (i.e., was ephemeral) in all years; as simulated, the wetland was ephemeral in two of five years. For the period 1915-2002, the simulated wetland was inundated continuously for as long as 16 years and nine months. The large differences in observed and simulated surface-water dynamics resulted from differences between altered and simulated unaltered stream inflows. The maximum and minimum annual total stream inflows observed from 1998-2005 were 3.1 ?? 106 m3 and 0 m3, respectively, versus 15.5 ?? 106 m3 and 3.2 ?? 106 m3 under simulated natural conditions from 1915-2002. The maximum simulated inflow was 484% greater than observed. These data indicate that the current hydrologic regime of this intermountain playa differs significantly from its natural hydrologic regime, which has important implications for planning and assessing conservation success. ?? 2008, The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1672/07-76.1","issn":"02775","usgsCitation":"Sanderson, J., Kotliar, N., Steingraeber, D., and Browne, C., 2008, Simulated natural hydrologic regime of an intermountain playa conservation site: Wetlands, v. 28, no. 2, p. 363-377, https://doi.org/10.1672/07-76.1.","startPage":"363","endPage":"377","numberOfPages":"15","costCenters":[],"links":[{"id":212033,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/07-76.1"},{"id":239437,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8fb7e4b08c986b3190cb","contributors":{"authors":[{"text":"Sanderson, J.S.","contributorId":13424,"corporation":false,"usgs":true,"family":"Sanderson","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":426364,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kotliar, N.B.","contributorId":7649,"corporation":false,"usgs":true,"family":"Kotliar","given":"N.B.","email":"","affiliations":[],"preferred":false,"id":426363,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Steingraeber, D.A.","contributorId":95269,"corporation":false,"usgs":true,"family":"Steingraeber","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":426366,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Browne, C.","contributorId":30035,"corporation":false,"usgs":true,"family":"Browne","given":"C.","email":"","affiliations":[],"preferred":false,"id":426365,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70033100,"text":"70033100 - 2008 - Eulerian-Lagrangian numerical scheme for simulating advection, dispersion, and transient storage in streams and a comparison of numerical methods","interactions":[],"lastModifiedDate":"2018-10-22T09:36:03","indexId":"70033100","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2255,"text":"Journal of Environmental Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Eulerian-Lagrangian numerical scheme for simulating advection, dispersion, and transient storage in streams and a comparison of numerical methods","docAbstract":"

Past applications of one-dimensional advection, dispersion, and transient storage zone models have almost exclusively relied on a central differencing, Eulerian numerical approximation to the nonconservative form of the fundamental equation. However, there are scenarios where this approach generates unacceptable error. A new numerical scheme for this type of modeling is presented here that is based on tracking Lagrangian control volumes across a fixed (Eulerian) grid. Numerical tests are used to provide a direct comparison of the new scheme versus nonconservative Eulerian numerical methods, in terms of both accuracy and mass conservation. Key characteristics of systems for which the Lagrangian scheme performs better than the Eulerian scheme include: nonuniform flow fields, steep gradient plume fronts, and pulse and steady point source loadings in advection-dominated systems. A new analytical derivation is presented that provides insight into the loss of mass conservation in the nonconservative Eulerian scheme. This derivation shows that loss of mass conservation in the vicinity of spatial flow changes is directly proportional to the lateral inflow rate and the change in stream concentration due to the inflow. While the nonconservative Eulerian scheme has clearly worked well for past published applications, it is important for users to be aware of the scheme’s limitations.


","language":"English","publisher":"ASCE","doi":"10.1061/(ASCE)0733-9372(2008)134:12(996)","issn":"07339","usgsCitation":"Cox, T., and Runkel, R., 2008, Eulerian-Lagrangian numerical scheme for simulating advection, dispersion, and transient storage in streams and a comparison of numerical methods: Journal of Environmental Engineering, v. 134, no. 12, p. 996-1005, https://doi.org/10.1061/(ASCE)0733-9372(2008)134:12(996).","productDescription":"10 p.","startPage":"996","endPage":"1005","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241011,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213388,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)0733-9372(2008)134:12"}],"volume":"134","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0bcbe4b0c8380cd5289d","contributors":{"authors":[{"text":"Cox, T.J.","contributorId":98121,"corporation":false,"usgs":true,"family":"Cox","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":439371,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Runkel, R.L.","contributorId":97529,"corporation":false,"usgs":true,"family":"Runkel","given":"R.L.","affiliations":[],"preferred":false,"id":439370,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031760,"text":"70031760 - 2008 - Trace analysis of antidepressant pharmaceuticals and their select degradates in aquatic matrixes by LC/ESI/MS/MS","interactions":[],"lastModifiedDate":"2021-05-27T18:18:42.712667","indexId":"70031760","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Trace analysis of antidepressant pharmaceuticals and their select degradates in aquatic matrixes by LC/ESI/MS/MS","docAbstract":"

Treated wastewater effluent is a potential environmental point source for antidepressant pharmaceuticals. A quantitative method was developed for the determination of trace levels of antidepressants in environmental aquatic matrixes using solid-phase extraction coupled with liquid chromatography-electrospray ionization tandem mass spectrometry. Recoveries of parent antidepressants from matrix spiking experiments for the individual antidepressants ranged from 72 to 118% at low concentrations (0.5 ng/L) and 70 to 118% at high concentrations (100 ng/L) for the solid-phase extraction method. Method detection limits for the individual antidepressant compounds ranged from 0.19 to 0.45 ng/L. The method was applied to wastewater effluent and samples collected from a wastewater-dominated stream. Venlafaxine was the predominant antidepressant observed in wastewater and river water samples. Individual antidepressant concentrations found in the wastewater effluent ranged from 3 (duloxetine) to 2190 ng/L (venlafaxine), whereas individual concentrations in the waste-dominated stream ranged from 0.72 (norfluoxetine) to 1310 ng/L (venlafaxine).


","language":"English","publisher":"ACS","doi":"10.1021/ac702154e","issn":"00032700","usgsCitation":"Schultz, M., and Furlong, E., 2008, Trace analysis of antidepressant pharmaceuticals and their select degradates in aquatic matrixes by LC/ESI/MS/MS: Analytical Chemistry, v. 80, no. 5, p. 1756-1762, https://doi.org/10.1021/ac702154e.","productDescription":"7 p.","startPage":"1756","endPage":"1762","costCenters":[{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":212516,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ac702154e"},{"id":240011,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"80","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-01-30","publicationStatus":"PW","scienceBaseUri":"505bb62fe4b08c986b326aea","contributors":{"authors":[{"text":"Schultz, M.M.","contributorId":18993,"corporation":false,"usgs":true,"family":"Schultz","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":433008,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Furlong, E. T. 0000-0002-7305-4603","orcid":"https://orcid.org/0000-0002-7305-4603","contributorId":98346,"corporation":false,"usgs":true,"family":"Furlong","given":"E. T.","affiliations":[],"preferred":false,"id":433009,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031976,"text":"70031976 - 2008 - Use of an integrated flow model to estimate ecologically relevant hydrologic characteristics at stream biomonitoring sites","interactions":[],"lastModifiedDate":"2019-10-03T14:23:58","indexId":"70031976","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"Use of an integrated flow model to estimate ecologically relevant hydrologic characteristics at stream biomonitoring sites","docAbstract":"We developed an integrated hydroecological model to provide a comprehensive set of hydrologic variables representing five major components of the flow regime at 856 aquatic-invertebrate monitoring sites in New Jersey. The hydroecological model simulates streamflow by routing water that moves overland and through the subsurface from atmospheric delivery to the watershed outlet. Snow accumulation and melt, evapotranspiration, precipitation, withdrawals, discharges, pervious- and impervious-area runoff, and lake storage were accounted for in the water balance. We generated more than 78 flow variables, which describe the frequency, magnitude, duration, rate of change, and timing of flow events. Highly correlated variables were filtered by principal component analysis to obtain a non-redundant subset of variables that explain the majority of the variation in the complete set. This subset of variables was used to evaluate the effect of changes in the flow regime on aquatic-invertebrate assemblage structure at 856 biomonitoring sites. We used non-metric multidimensional scaling (NMS) to evaluate variation in aquatic-invertebrate assemblage structure across a disturbance gradient. We employed multiple linear regression (MLR) analysis to build a series of MLR models that identify the most important environmental and hydrologic variables driving the differences in the aquatic-invertebrate assemblages across the disturbance gradient. The first axis of NMS ordination was significantly related to many hydrologic, habitat, and land-use/land-cover variables, including the average number of annual storms producing runoff, ratio of 25-75% exceedance flow (flashiness), diversity of natural stream substrate, and the percentage of forested land near the stream channel (forest buffer). Modifications in the hydrologic regime as the result of changes in watershed land use appear to promote the retention of highly tolerant aquatic species; in contrast, species that are sensitive to hydrologic instability and other anthropogenic disturbance become much less prevalent. We also found strong relations between an index of invertebrate-assemblage impairment, its component metrics, and the primary disturbance gradient. The process-oriented watershed modeling approach used in this study provides a means to evaluate how natural landscape features interact with anthropogenic factors and assess their effects on flow characteristics and stream ecology. By combining watershed modeling and indirect ordination techniques, we were able to identify components of the hydrologic regime that have a considerable effect on aquatic-assemblage structure and help in developing short- and long-term management measures that mitigate the effects of anthropogenic disturbance in stream systems.","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecolmodel.2007.08.014","issn":"03043800","usgsCitation":"Kennen, J., Kauffman, L.J., Ayers, M.A., Wolock, D., and Colarullo, S.J., 2008, Use of an integrated flow model to estimate ecologically relevant hydrologic characteristics at stream biomonitoring sites: Ecological Modelling, v. 211, no. 1-2, p. 57-76, https://doi.org/10.1016/j.ecolmodel.2007.08.014.","productDescription":"20 p.","startPage":"57","endPage":"76","numberOfPages":"20","costCenters":[{"id":470,"text":"New Jersey Water Science 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Jersey\",\"nation\":\"USA \"}}]}","volume":"211","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbeb8e4b08c986b329747","contributors":{"authors":[{"text":"Kennen, J.G.","contributorId":27630,"corporation":false,"usgs":true,"family":"Kennen","given":"J.G.","affiliations":[],"preferred":false,"id":433970,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kauffman, L. J. 0000-0003-4564-0362","orcid":"https://orcid.org/0000-0003-4564-0362","contributorId":65217,"corporation":false,"usgs":true,"family":"Kauffman","given":"L.","email":"","middleInitial":"J.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":false,"id":433973,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ayers, M. A.","contributorId":41417,"corporation":false,"usgs":true,"family":"Ayers","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":433972,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wolock, D.M. 0000-0002-6209-938X","orcid":"https://orcid.org/0000-0002-6209-938X","contributorId":36601,"corporation":false,"usgs":true,"family":"Wolock","given":"D.M.","affiliations":[],"preferred":false,"id":433971,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Colarullo, Susan J. 0000-0003-4504-0068 colarull@usgs.gov","orcid":"https://orcid.org/0000-0003-4504-0068","contributorId":652,"corporation":false,"usgs":true,"family":"Colarullo","given":"Susan","email":"colarull@usgs.gov","middleInitial":"J.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":433974,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031972,"text":"70031972 - 2008 - Redox processes and water quality of selected principal aquifer systems","interactions":[],"lastModifiedDate":"2018-10-22T08:21:14","indexId":"70031972","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Redox processes and water quality of selected principal aquifer systems","docAbstract":"Reduction/oxidation (redox) conditions in 15 principal aquifer (PA) systems of the United States, and their impact on several water quality issues, were assessed from a large data base collected by the National Water-Quality Assessment Program of the USGS. The logic of these assessments was based on the observed ecological succession of electron acceptors such as dissolved oxygen, nitrate, and sulfate and threshold concentrations of these substrates needed to support active microbial metabolism. Similarly, the utilization of solid-phase electron acceptors such as Mn(IV) and Fe(III) is indicated by the production of dissolved manganese and iron. An internally consistent set of threshold concentration criteria was developed and applied to a large data set of 1692 water samples from the PAs to assess ambient redox conditions. The indicated redox conditions then were related to the occurrence of selected natural (arsenic) and anthropogenic (nitrate and volatile organic compounds) contaminants in ground water. For the natural and anthropogenic contaminants assessed in this study, considering redox conditions as defined by this framework of redox indicator species and threshold concentrations explained many water quality trends observed at a regional scale. An important finding of this study was that samples indicating mixed redox processes provide information on redox heterogeneity that is useful for assessing common water quality issues. Given the interpretive power of the redox framework and given that it is relatively inexpensive and easy to measure the chemical parameters included in the framework, those parameters should be included in routine water quality monitoring programs whenever possible.","language":"English","publisher":"NGWA","doi":"10.1111/j.1745-6584.2007.00385.x","issn":"0017467X","usgsCitation":"McMahon, P., and Chapelle, F.H., 2008, Redox processes and water quality of selected principal aquifer systems: Ground Water, v. 46, no. 2, p. 259-271, https://doi.org/10.1111/j.1745-6584.2007.00385.x.","productDescription":"13 p.","startPage":"259","endPage":"271","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":242790,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215024,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2007.00385.x"}],"volume":"46","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a3c0e4b0e8fec6cdb965","contributors":{"authors":[{"text":"McMahon, P.B. 0000-0001-7452-2379","orcid":"https://orcid.org/0000-0001-7452-2379","contributorId":10762,"corporation":false,"usgs":true,"family":"McMahon","given":"P.B.","affiliations":[],"preferred":false,"id":433952,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chapelle, F. H.","contributorId":101697,"corporation":false,"usgs":true,"family":"Chapelle","given":"F.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":433953,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031953,"text":"70031953 - 2008 - Application of multiple isotopic and geochemical tracers for investigation of recharge, salinization, and residence time of water in the Souss-Massa aquifer, southwest of Morocco","interactions":[],"lastModifiedDate":"2012-03-12T17:21:27","indexId":"70031953","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Application of multiple isotopic and geochemical tracers for investigation of recharge, salinization, and residence time of water in the Souss-Massa aquifer, southwest of Morocco","docAbstract":"Groundwater and surface water in Souss-Massa basin in the west-southern part of Morocco is characterized by a large variation in salinity, up to levels of 37 g L-1. The high salinity coupled with groundwater level decline pose serious problems for current irrigation and domestic water supplies as well as future exploitation. A combined hydrogeologic and isotopic investigation using several chemical and isotopic tracers such as Br/Cl, ??18O, ??2H, 3H, 87Sr/86Sr, ??11B, and 14C was carried out in order to determine the sources of water recharge to the aquifer, the origin of salinity, and the residence time of water. Stable isotope, 3H and 14C data indicate that the high Atlas mountains in the northern margin of the Souss-Massa basin with high rainfall and low ??18O and ??2H values (-6 to -8??? and -36 to -50???) is currently constitute the major source of recharge to the Souss-Massa shallow aquifer, particularly along the eastern part of the basin. Localized stable isotope enrichments offset meteoric isotopic signature and are associated with high nitrate concentrations, which infer water recycling via water agricultural return flows. The 3H and 14C data suggest that the residence time of water in the western part of the basin is in the order of several thousands of years; hence old water is mined, particularly in the coastal areas. The multiple isotope analyses and chemical tracing of groundwater from the basin reveal that seawater intrusion is just one of multiple salinity sources that affect the quality of groundwater in the Souss-Massa aquifer. We differentiate between modern seawater intrusion, salinization by remnants of seawater entrapped in the middle Souss plains, recharge of nitrate-rich agricultural return flow, and dissolution of evaporate rocks (gypsum and halite minerals) along the outcrops of the high Atlas mountains. The data generated in this study provide the framework for a comprehensive management plan in which water exploitation should shift toward the eastern part of the basin where current recharge occurs with young and high quality groundwater. In contrast, we argued that the heavily exploited aquifer along the coastal areas is more vulnerable given the relatively longer residence time of the water and salinization processes in this part of the aquifer. ?? 2008 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2008.01.022","issn":"00221694","usgsCitation":"Bouchaou, L., Michelot, J., Vengosh, A., Hsissou, Y., Qurtobi, M., Gaye, C., Bullen, T., and Zuppi, G., 2008, Application of multiple isotopic and geochemical tracers for investigation of recharge, salinization, and residence time of water in the Souss-Massa aquifer, southwest of Morocco: Journal of Hydrology, v. 352, no. 3-4, p. 267-287, https://doi.org/10.1016/j.jhydrol.2008.01.022.","startPage":"267","endPage":"287","numberOfPages":"21","costCenters":[],"links":[{"id":214775,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2008.01.022"},{"id":242525,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"352","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eca8e4b0c8380cd493fa","contributors":{"authors":[{"text":"Bouchaou, L.","contributorId":51556,"corporation":false,"usgs":true,"family":"Bouchaou","given":"L.","affiliations":[],"preferred":false,"id":433862,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Michelot, J.L.","contributorId":58483,"corporation":false,"usgs":true,"family":"Michelot","given":"J.L.","affiliations":[],"preferred":false,"id":433864,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vengosh, A.","contributorId":88925,"corporation":false,"usgs":true,"family":"Vengosh","given":"A.","affiliations":[],"preferred":false,"id":433868,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hsissou, Y.","contributorId":22596,"corporation":false,"usgs":true,"family":"Hsissou","given":"Y.","email":"","affiliations":[],"preferred":false,"id":433861,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Qurtobi, M.","contributorId":78957,"corporation":false,"usgs":true,"family":"Qurtobi","given":"M.","email":"","affiliations":[],"preferred":false,"id":433866,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gaye, C.B.","contributorId":56017,"corporation":false,"usgs":true,"family":"Gaye","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":433863,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Bullen, T.D.","contributorId":79911,"corporation":false,"usgs":true,"family":"Bullen","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":433867,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Zuppi, G.M.","contributorId":66079,"corporation":false,"usgs":true,"family":"Zuppi","given":"G.M.","email":"","affiliations":[],"preferred":false,"id":433865,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70031939,"text":"70031939 - 2008 - Effects of climate and land management change on streamflow in the driftless area of Wisconsin","interactions":[],"lastModifiedDate":"2018-02-06T12:19:33","indexId":"70031939","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Effects of climate and land management change on streamflow in the driftless area of Wisconsin","docAbstract":"Baseflow and precipitation in the Kickapoo River Watershed, located in the Driftless Area of Wisconsin, exhibit a step increase around 1970, similar to minimum and median flows in many other central and eastern USA streams. Potential effects on streamflow due to climatic and land management changes were evaluated by comparing volumetric changes in the hydrologic budget before and after 1970. Increases in precipitation do not fully account for the increase in baseflow, which appears to be offset by a volumetric decrease in stormflow. This suggests that factors that influence the partitioning of precipitation into overland runoff or infiltration have changed. A transition from relatively more intensive to relatively less intensive agricultural land use is generally associated with higher infiltration rates, and likely influences partitioning of flow. Changes in agricultural land management practices in the Driftless Area, which began in the mid-1930s, do not coincide with the abrupt increase in baseflow around 1970. Instead, the timing of hydrologic change appears to coincide with changes in precipitation, whereas the magnitude of the change in baseflow and stormflow was likely amplified by changes in agricultural land management. ?? 2008 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2008.03.010","issn":"00221694","usgsCitation":"Juckem, P., Hunt, R.J., Anderson, M.P., and Robertson, D.M., 2008, Effects of climate and land management change on streamflow in the driftless area of Wisconsin: Journal of Hydrology, v. 355, no. 1-4, p. 123-130, https://doi.org/10.1016/j.jhydrol.2008.03.010.","startPage":"123","endPage":"130","numberOfPages":"8","costCenters":[],"links":[{"id":242820,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215051,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2008.03.010"}],"volume":"355","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a06ade4b0c8380cd5137e","contributors":{"authors":[{"text":"Juckem, P. F.","contributorId":24819,"corporation":false,"usgs":true,"family":"Juckem","given":"P. F.","affiliations":[],"preferred":false,"id":433812,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hunt, R. J.","contributorId":40164,"corporation":false,"usgs":true,"family":"Hunt","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":433813,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, Marilyn P.","contributorId":102970,"corporation":false,"usgs":true,"family":"Anderson","given":"Marilyn","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":433815,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Robertson, Dale M. 0000-0001-6799-0596 dzrobert@usgs.gov","orcid":"https://orcid.org/0000-0001-6799-0596","contributorId":150760,"corporation":false,"usgs":true,"family":"Robertson","given":"Dale","email":"dzrobert@usgs.gov","middleInitial":"M.","affiliations":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true}],"preferred":true,"id":433814,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031813,"text":"70031813 - 2008 - Bioaccumulation of pharmaceuticals and other anthropogenic waste indicators in earthworms from agricultural soil amended with biosolid or swine manure","interactions":[],"lastModifiedDate":"2021-05-27T17:36:34.498063","indexId":"70031813","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Bioaccumulation of pharmaceuticals and other anthropogenic waste indicators in earthworms from agricultural soil amended with biosolid or swine manure","docAbstract":"

Analysis of earthworms offers potential for assessing the transfer of organic anthropogenic waste indicators (AWIs) derived from land-applied biosolid or manure to biota. Earthworms and soil samples were collected from three Midwest agricultural fields to measure the presence and potential for transfer of 77 AWIs from land-applied biosolids and livestock manure to earthworms. The sites consisted of a soybean field with no amendments of human or livestock waste (Site 1), a soybean field amended with biosolids from a municipal wastewater treatment plant (Site 2), and a cornfield amended with swine manure (Site 3). The biosolid applied to Site 2 contained a diverse composition of 28 AWIs, reflecting the presence of human-use compounds. The swine manure contained 12 AWIs, and was dominated by biogenic sterols. Soil and earthworm samples were collected in the spring (about 30 days after soil amendment) and fall (140−155 days after soil amendment) at all field sites. Soils from Site 1 contained 21 AWIs and soil from Sites 2 and 3 contained 19 AWIs. The AWI profiles at Sites 2 and 3 generally reflected the relative composition of AWIs present in waste material applied. There were 20 AWIs detected in earthworms from Site 1 (three compounds exceeding concentrations of 1000 µg/kg), 25 AWIs in earthworms from Site 2 (seven compounds exceeding concentrations of 1000 µg/kg), and 21 AWIs in earthworms from Site 3 (five compounds exceeding concentrations of 1000 µg/kg). A number of compounds that were present in the earthworm tissue were at concentrations less than reporting levels in the corresponding soil samples. The AWIs detected in earthworm tissue from the three field sites included pharmaceuticals, synthetic fragrances, detergent metabolites, polycyclic aromatic hydrocarbons (PAHs), biogenic sterols, disinfectants, and pesticides, reflecting a wide range of physicochemical properties. For those contaminants detected in earthworm tissue and soil, bioaccumulation factors (BAF) ranged from 0.05 (galaxolide) to 27 (triclosan). This study documents that when AWIs are present in source materials that are land applied, such as biosolids and swine manure, AWIs can be transferred to earthworms.


","language":"English","publisher":"American Chemical Society","doi":"10.1021/es702304c","issn":"0013936X","usgsCitation":"Kinney, C., Furlong, E., Kolpin, D., Burkhardt, M., Zaugg, S., Werner, S., Bossio, J., and Benotti, M., 2008, Bioaccumulation of pharmaceuticals and other anthropogenic waste indicators in earthworms from agricultural soil amended with biosolid or swine manure: Environmental Science & Technology, v. 42, no. 6, p. 1863-1870, https://doi.org/10.1021/es702304c.","productDescription":"8 p.","startPage":"1863","endPage":"1870","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":239780,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"6","noUsgsAuthors":false,"publicationDate":"2008-02-20","publicationStatus":"PW","scienceBaseUri":"5059f138e4b0c8380cd4aae4","contributors":{"authors":[{"text":"Kinney, C.A.","contributorId":90516,"corporation":false,"usgs":true,"family":"Kinney","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":433249,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Furlong, E. T. 0000-0002-7305-4603","orcid":"https://orcid.org/0000-0002-7305-4603","contributorId":98346,"corporation":false,"usgs":true,"family":"Furlong","given":"E. T.","affiliations":[],"preferred":false,"id":433250,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kolpin, D.W.","contributorId":87565,"corporation":false,"usgs":true,"family":"Kolpin","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":433248,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burkhardt, M.R.","contributorId":70410,"corporation":false,"usgs":true,"family":"Burkhardt","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":433245,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zaugg, S.D.","contributorId":82811,"corporation":false,"usgs":true,"family":"Zaugg","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":433247,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Werner, S.L.","contributorId":82734,"corporation":false,"usgs":true,"family":"Werner","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":433246,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Bossio, J.P.","contributorId":37959,"corporation":false,"usgs":true,"family":"Bossio","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":433244,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Benotti, M.J.","contributorId":21750,"corporation":false,"usgs":true,"family":"Benotti","given":"M.J.","affiliations":[],"preferred":false,"id":433243,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70031938,"text":"70031938 - 2008 - Comparison of total mercury and methylmercury cycling at five sites using the small watershed approach","interactions":[],"lastModifiedDate":"2018-10-17T10:25:49","indexId":"70031938","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1555,"text":"Environmental Pollution","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of total mercury and methylmercury cycling at five sites using the small watershed approach","docAbstract":"

The small watershed approach is well-suited but underutilized in mercury research. We applied the small watershed approach to investigate total mercury (THg) and methylmercury (MeHg) dynamics in streamwater at the five diverse forested headwater catchments of the US Geological Survey Water, Energy, and Biogeochemical Budgets (WEBB) program. At all sites, baseflow THg was generally less than 1 ng L−1 and MeHg was less than 0.2 ng L−1. THg and MeHg concentrations increased with streamflow, so export was primarily episodic. At three sites, THg and MeHg concentration and export were dominated by the particulate fraction in association with POC at high flows, with maximum THg (MeHg) concentrations of 94 (2.56) ng L−1 at Sleepers River, Vermont; 112 (0.75) ng L−1 at Rio Icacos, Puerto Rico; and 55 (0.80) ng L−1 at Panola Mt., Georgia. Filtered (<0.7 μm) THg increased more modestly with flow in association with the hydrophobic acid fraction (HPOA) of DOC, with maximum filtered THg concentrations near 5 ng L−1 at both Sleepers and Icacos. At Andrews Creek, Colorado, THg export was also episodic but was dominated by filtered THg, as POC concentrations were low. MeHg typically tracked THg so that each site had a fairly constant MeHg/THg ratio, which ranged from near zero at Andrews to 15% at the low-relief, groundwater-dominated Allequash Creek, Wisconsin. Allequash was the only site with filtered MeHg consistently above detection, and the filtered fraction dominated both THg and MeHg. Relative to inputs in wet deposition, watershed retention of THg (minus any subsequent volatilization) was 96.6% at Allequash, 60% at Sleepers, and 83% at Andrews. Icacos had a net export of THg, possibly due to historic gold mining or frequent disturbance from landslides. Quantification and interpretation of Hg dynamics was facilitated by the small watershed approach with emphasis on event sampling.

","language":"English","publisher":"Elsevier","doi":"10.1016/j.envpol.2007.12.031","issn":"02697491","usgsCitation":"Shanley, J.B., Alisa, M., Campbell, K., Aiken, G., Krabbenhoft, D., Hunt, R.J., Walker, J., Schuster, P., Chalmers, A., Aulenbach, B., Peters, N., Marvin-DiPasquale, M., Clow, D.W., and Shafer, M., 2008, Comparison of total mercury and methylmercury cycling at five sites using the small watershed approach: Environmental Pollution, v. 154, no. 1, p. 143-154, https://doi.org/10.1016/j.envpol.2007.12.031.","productDescription":"12 p.","startPage":"143","endPage":"154","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":242819,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215050,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.envpol.2007.12.031"}],"volume":"154","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f8b5e4b0c8380cd4d246","contributors":{"authors":[{"text":"Shanley, J. B.","contributorId":52226,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":433805,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Alisa, Mast M.","contributorId":43129,"corporation":false,"usgs":true,"family":"Alisa","given":"Mast M.","affiliations":[],"preferred":false,"id":433804,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Campbell, K.","contributorId":63351,"corporation":false,"usgs":false,"family":"Campbell","given":"K.","affiliations":[{"id":47665,"text":"St. Anthony Falls Laboratory, University of Minnesota, Minneapolis, MN, USA","active":true,"usgs":false}],"preferred":false,"id":433807,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Aiken, G. R. 0000-0001-8454-0984","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":14452,"corporation":false,"usgs":true,"family":"Aiken","given":"G. R.","affiliations":[],"preferred":false,"id":433798,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Krabbenhoft, D. P. 0000-0003-1964-5020","orcid":"https://orcid.org/0000-0003-1964-5020","contributorId":90765,"corporation":false,"usgs":true,"family":"Krabbenhoft","given":"D. P.","affiliations":[],"preferred":false,"id":433810,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hunt, R. J.","contributorId":40164,"corporation":false,"usgs":true,"family":"Hunt","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":433803,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Walker, J.F.","contributorId":86743,"corporation":false,"usgs":true,"family":"Walker","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":433809,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Schuster, P. F.","contributorId":30197,"corporation":false,"usgs":true,"family":"Schuster","given":"P. F.","affiliations":[],"preferred":false,"id":433801,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Chalmers, A.","contributorId":96858,"corporation":false,"usgs":true,"family":"Chalmers","given":"A.","email":"","affiliations":[],"preferred":false,"id":433811,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Aulenbach, Brent T.","contributorId":62766,"corporation":false,"usgs":true,"family":"Aulenbach","given":"Brent T.","affiliations":[],"preferred":false,"id":433806,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Peters, N.E.","contributorId":33332,"corporation":false,"usgs":true,"family":"Peters","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":433802,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Marvin-DiPasquale, M.","contributorId":28367,"corporation":false,"usgs":true,"family":"Marvin-DiPasquale","given":"M.","affiliations":[],"preferred":false,"id":433800,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Clow, D. W.","contributorId":23531,"corporation":false,"usgs":true,"family":"Clow","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":433799,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Shafer, M.M.","contributorId":74893,"corporation":false,"usgs":true,"family":"Shafer","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":433808,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}} ,{"id":70031796,"text":"70031796 - 2008 - Climatic and anthropogenic factors affecting river discharge to the global ocean, 1951-2000","interactions":[],"lastModifiedDate":"2012-03-12T17:21:07","indexId":"70031796","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1844,"text":"Global and Planetary Change","active":true,"publicationSubtype":{"id":10}},"title":"Climatic and anthropogenic factors affecting river discharge to the global ocean, 1951-2000","docAbstract":"During the last half of the 20th century, cumulative annual discharge from 137 representative rivers (watershed areas ranging from 0.3 to 6300 ?? 103??km2) to the global ocean remained constant, although annual discharge from about one-third of these rivers changed by more than 30%. Discharge trends for many rivers reflected mostly changes in precipitation, primarily in response to short- and longer-term atmospheric-oceanic signals; with the notable exception of the Parana, Mississippi, Niger and Cunene rivers, few of these \"normal\" rivers experienced significant changes in either discharge or precipitation. Cumulative discharge from many mid-latitude rivers, in contrast, decreased by 60%, reflecting in large part impacts due to damming, irrigation and interbasin water transfers. A number of high-latitude and high-altitude rivers experienced increased discharge despite generally declining precipitation. Poorly constrained meteorological and hydrological data do not seem to explain fully these \"excess\" rivers; changed seasonality in discharge, decreased storage and/or decreased evapotranspiration also may play important roles. ?? 2008 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Global and Planetary Change","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.gloplacha.2008.03.001","issn":"09218181","usgsCitation":"Milliman, J., Farnsworth, K., Jones, P.D., Xu, K., and Smith, L., 2008, Climatic and anthropogenic factors affecting river discharge to the global ocean, 1951-2000: Global and Planetary Change, v. 62, no. 3-4, p. 187-194, https://doi.org/10.1016/j.gloplacha.2008.03.001.","startPage":"187","endPage":"194","numberOfPages":"8","costCenters":[],"links":[{"id":212553,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gloplacha.2008.03.001"},{"id":240054,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"62","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f65ae4b0c8380cd4c6f9","contributors":{"authors":[{"text":"Milliman, John D.","contributorId":76735,"corporation":false,"usgs":false,"family":"Milliman","given":"John D.","affiliations":[{"id":6706,"text":"Woods Hole Oceanographic Institution,","active":true,"usgs":false}],"preferred":false,"id":433174,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farnsworth, K.L.","contributorId":36746,"corporation":false,"usgs":true,"family":"Farnsworth","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":433171,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, P. D.","contributorId":46462,"corporation":false,"usgs":false,"family":"Jones","given":"P.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":433172,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Xu, K.H.","contributorId":63222,"corporation":false,"usgs":true,"family":"Xu","given":"K.H.","email":"","affiliations":[],"preferred":false,"id":433173,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, L.C.","contributorId":88561,"corporation":false,"usgs":true,"family":"Smith","given":"L.C.","email":"","affiliations":[],"preferred":false,"id":433175,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031926,"text":"70031926 - 2008 - Comparative study of transport processes of nitrogen, phosphorus, and herbicides to streams in five agricultural basins, USA","interactions":[],"lastModifiedDate":"2021-05-27T14:42:48.514946","indexId":"70031926","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Comparative study of transport processes of nitrogen, phosphorus, and herbicides to streams in five agricultural basins, USA","docAbstract":"Agricultural chemical transport to surface water and the linkage to other hydrological compartments, principally ground water, was investigated at five watersheds in semiarid to humid climatic settings. Chemical transport was affected by storm water runoff, soil drainage, irrigation, and how streams were linked to shallow ground water systems. Irrigation practices and timing of chemical use greatly affected nutrient and pesticide transport in the semiarid basins. Irrigation with imported water tended to increase ground water and chemical transport, whereas the use of locally pumped irrigation water may eliminate connections between streams and ground water, resulting in lower annual loads. Drainage pathways in humid environments are important because the loads may be transported in tile drains, or through varying combinations of ground water discharge, and overland flow. In most cases, overland flow contributed the greatest loads, but a significant portion of the annual load of nitrate and some pesticide degradates can be transported under base-flow conditions. The highest basin yields for nitrate were measured in a semiarid irrigated system that used imported water and in a stream dominated by tile drainage in a humid environment. Pesticide loads, as a percent of actual use (LAPU), showed the effects of climate and geohydrologic conditions. The LAPU values in the semiarid study basin in Washington were generally low because most of the load was transported in ground water discharge to the stream. When herbicides are applied during the rainy season in a semiarid setting, such as simazine in the California basin, LAPU values are similar to those in the Midwest basins. Copyright ?? 2008 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. All rights reserved.","language":"English","publisher":"ACSESS","doi":"10.2134/jeq2007.0408","issn":"00472425","usgsCitation":"Domagalski, J.L., Ator, S., Coupe, R., McCarthy, K., Lampe, D., Sandstrom, M.W., and Baker, N., 2008, Comparative study of transport processes of nitrogen, phosphorus, and herbicides to streams in five agricultural basins, USA: Journal of Environmental Quality, v. 37, no. 3, p. 1158-1169, https://doi.org/10.2134/jeq2007.0408.","productDescription":"12 p.","startPage":"1158","endPage":"1169","numberOfPages":"12","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true}],"links":[{"id":242558,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f82ae4b0c8380cd4cf01","contributors":{"authors":[{"text":"Domagalski, Joseph L. 0000-0002-6032-757X joed@usgs.gov","orcid":"https://orcid.org/0000-0002-6032-757X","contributorId":1330,"corporation":false,"usgs":true,"family":"Domagalski","given":"Joseph","email":"joed@usgs.gov","middleInitial":"L.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":433753,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ator, S. 0000-0002-9186-4837","orcid":"https://orcid.org/0000-0002-9186-4837","contributorId":59645,"corporation":false,"usgs":true,"family":"Ator","given":"S.","affiliations":[],"preferred":false,"id":433755,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coupe, R.","contributorId":11841,"corporation":false,"usgs":true,"family":"Coupe","given":"R.","email":"","affiliations":[],"preferred":false,"id":433751,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McCarthy, K.","contributorId":48287,"corporation":false,"usgs":true,"family":"McCarthy","given":"K.","affiliations":[],"preferred":false,"id":433754,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lampe, D.","contributorId":96105,"corporation":false,"usgs":true,"family":"Lampe","given":"D.","email":"","affiliations":[],"preferred":false,"id":433757,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sandstrom, Mark W. 0000-0003-0006-5675 sandstro@usgs.gov","orcid":"https://orcid.org/0000-0003-0006-5675","contributorId":706,"corporation":false,"usgs":true,"family":"Sandstrom","given":"Mark","email":"sandstro@usgs.gov","middleInitial":"W.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true}],"preferred":true,"id":433756,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Baker, N.","contributorId":37975,"corporation":false,"usgs":true,"family":"Baker","given":"N.","email":"","affiliations":[],"preferred":false,"id":433752,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70031920,"text":"70031920 - 2008 - Temporal downscaling of decadal sediment load estimates to a daily interval for use in hindcast simulations","interactions":[],"lastModifiedDate":"2018-09-18T09:50:12","indexId":"70031920","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Temporal downscaling of decadal sediment load estimates to a daily interval for use in hindcast simulations","docAbstract":"In this study we used hydrologic proxies to develop a daily sediment load time-series, which agrees with decadal sediment load estimates, when integrated. Hindcast simulations of bathymetric change in estuaries require daily sediment loads from major tributary rivers, to capture the episodic delivery of sediment during multi-day freshwater flow pulses. Two independent decadal sediment load estimates are available for the Sacramento/San Joaquin River Delta, California prior to 1959, but they must be downscaled to a daily interval for use in hindcast models. Daily flow and sediment load data to the Delta are available after 1930 and 1959, respectively, but bathymetric change simulations for San Francisco Bay prior to this require a method to generate daily sediment load estimates into the Delta. We used two historical proxies, monthly rainfall and unimpaired flow magnitudes, to generate monthly unimpaired flows to the Sacramento/San Joaquin Delta for the 1851-1929 period. This step generated the shape of the monthly hydrograph. These historical monthly flows were compared to unimpaired monthly flows from the modern era (1967-1987), and a least-squares metric selected a modern water year analogue for each historical water year. The daily hydrograph for the modern analogue was then assigned to the historical year and scaled to match the flow volume estimated by dendrochronology methods, providing the correct total flow for the year. We applied a sediment rating curve to this time-series of daily flows, to generate daily sediment loads for 1851-1958. The rating curve was calibrated with the two independent decadal sediment load estimates, over two distinct periods. This novel technique retained the timing and magnitude of freshwater flows and sediment loads, without damping variability or net sediment loads to San Francisco Bay. The time-series represents the hydraulic mining period with sustained periods of increased sediment loads, and a dramatic decrease after 1910, corresponding to a reduction in available mining debris. The analogue selection procedure also permits exploration of the morphological hydrograph concept, where a limited set of hydrographs is used to simulate the same bathymetric change as the actual set of hydrographs. The final daily sediment load time-series and morphological hydrograph concept will be applied as landward boundary conditions for hindcasting simulations of bathymetric change in San Francisco Bay.","largerWorkTitle":"Journal of Hydrology","language":"English","doi":"10.1016/j.jhydrol.2007.11.026","issn":"00221694","usgsCitation":"Ganju, N., Knowles, N., and Schoellhamer, D., 2008, Temporal downscaling of decadal sediment load estimates to a daily interval for use in hindcast simulations: Journal of Hydrology, v. 349, no. 3-4, p. 512-523, https://doi.org/10.1016/j.jhydrol.2007.11.026.","productDescription":"12 p.","startPage":"512","endPage":"523","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":242454,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":" California","otherGeospatial":"Sacramento/San Joaquin River Delta","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.00292968749999,\n 40.329795743702064\n ],\n [\n -122.78320312499999,\n 39.99395569397331\n ],\n [\n -122.6513671875,\n 39.30029918615029\n ],\n [\n -122.40966796874999,\n 38.44498466889473\n ],\n [\n -121.81640624999999,\n 37.92686760148135\n ],\n [\n -121.48681640624999,\n 37.59682400108367\n ],\n [\n -121.37695312499999,\n 37.142803443716836\n ],\n [\n -120.9814453125,\n 36.527294814546245\n ],\n [\n -120.82763671875,\n 36.10237644873644\n ],\n [\n -120.56396484375,\n 35.567980458012094\n ],\n [\n -119.83886718750001,\n 34.939985151560435\n ],\n [\n -118.828125,\n 34.813803317113155\n ],\n [\n -118.6083984375,\n 35.17380831799959\n ],\n [\n -118.6083984375,\n 35.746512259918504\n ],\n [\n -118.71826171875,\n 36.29741818650811\n ],\n [\n -119.06982421874999,\n 36.82687474287728\n ],\n [\n -119.77294921874999,\n 37.405073750176925\n ],\n [\n -120.34423828125,\n 37.78808138412046\n ],\n [\n -120.76171875,\n 38.28993659801203\n ],\n [\n -121.46484375,\n 39.45316112807394\n ],\n [\n -121.6845703125,\n 39.842286020743394\n ],\n [\n -122.05810546875,\n 40.66397287638688\n ],\n [\n -122.36572265625,\n 40.81380923056958\n ],\n [\n -122.73925781250001,\n 40.56389453066509\n ],\n [\n -123.00292968749999,\n 40.329795743702064\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"349","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba509e4b08c986b32076d","contributors":{"authors":[{"text":"Ganju, N. K. 0000-0002-1096-0465","orcid":"https://orcid.org/0000-0002-1096-0465","contributorId":64782,"corporation":false,"usgs":true,"family":"Ganju","given":"N. K.","affiliations":[],"preferred":false,"id":433734,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Knowles, N.","contributorId":61212,"corporation":false,"usgs":true,"family":"Knowles","given":"N.","email":"","affiliations":[],"preferred":false,"id":433733,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schoellhamer, D. H. 0000-0001-9488-7340","orcid":"https://orcid.org/0000-0001-9488-7340","contributorId":85624,"corporation":false,"usgs":true,"family":"Schoellhamer","given":"D. H.","affiliations":[],"preferred":false,"id":433735,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031905,"text":"70031905 - 2008 - Biomarkers of mercury exposure at a mercury recycling facility in Ukraine","interactions":[],"lastModifiedDate":"2018-10-17T10:00:42","indexId":"70031905","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2404,"text":"Journal of Occupational and Environmental Hygiene","active":true,"publicationSubtype":{"id":10}},"title":"Biomarkers of mercury exposure at a mercury recycling facility in Ukraine","docAbstract":"

This study evaluates biomarkers of occupational mercury exposure among workers at a mercury recycling operation in Gorlovka, Ukraine. The 29 study participants were divided into three occupational categories for analysis: (1) those who worked in the mercury recycling operation (Group A, n = 8), (2) those who worked at the facility but not in the yard where the recycling was done (Group B, n = 14), and (3) those who did not work at the facility (Group C, n = 7). Urine, blood, hair, and nail samples were collected from the participants, and a questionnaire was administered to obtain data on age, gender, occupational history, smoking, alcohol consumption, fish consumption, tattoos, dental amalgams, home heating system, education, source of drinking water, and family employment in the former mercury mine/smelter located on the site of the recycling facility. Each factor was tested in a univariate regression with total mercury in urine, blood, hair, and nails. Median biomarker concentrations were 4.04 μg/g-Cr (urine), 2.58 μg/L (blood), 3.95 μg/g (hair), and 1.16 μg/g (nails). Occupational category was significantly correlated (p < 0.001) with both blood and urinary mercury concentrations but not with hair or nail mercury. Four individuals had urinary mercury concentrations in a range previously found to be associated with subtle neurological and subjective symptoms (e.g., fatigue, loss of appetite, irritability), and one worker had a urinary mercury concentration in a range associated with a high probability of neurological effects and proteinuria. Comparison of results by occupational category found that workers directly involved with the recycling operation had the highest blood and urinary mercury levels. Those who worked at the facility but were not directly involved with the recycling operation had higher levels than those who did not work at the facility.


","language":"English","publisher":"Taylor and Francis","doi":"10.1080/15459620802174432","issn":"15459624","usgsCitation":"Gibb, H., Kozlov, K., Buckley, J., Centeno, J., Jurgenson, V., Kolker, A., Conko, K., Landa, E., Panov, B., Panov, Y., and Xu, H., 2008, Biomarkers of mercury exposure at a mercury recycling facility in Ukraine: Journal of Occupational and Environmental Hygiene, v. 5, no. 8, p. 483-489, https://doi.org/10.1080/15459620802174432.","productDescription":"7 p.","startPage":"483","endPage":"489","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":242786,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215021,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/15459620802174432"}],"volume":"5","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f189e4b0c8380cd4acae","contributors":{"authors":[{"text":"Gibb, H.J.","contributorId":41666,"corporation":false,"usgs":true,"family":"Gibb","given":"H.J.","email":"","affiliations":[],"preferred":false,"id":433663,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kozlov, K.","contributorId":56877,"corporation":false,"usgs":true,"family":"Kozlov","given":"K.","affiliations":[],"preferred":false,"id":433665,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buckley, J.P.","contributorId":105548,"corporation":false,"usgs":true,"family":"Buckley","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":433670,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Centeno, J.","contributorId":103481,"corporation":false,"usgs":true,"family":"Centeno","given":"J.","email":"","affiliations":[],"preferred":false,"id":433669,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jurgenson, V.","contributorId":88968,"corporation":false,"usgs":true,"family":"Jurgenson","given":"V.","email":"","affiliations":[],"preferred":false,"id":433668,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kolker, A. 0000-0002-5768-4533","orcid":"https://orcid.org/0000-0002-5768-4533","contributorId":10947,"corporation":false,"usgs":true,"family":"Kolker","given":"A.","affiliations":[],"preferred":false,"id":433660,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Conko, K. 0000-0001-6361-4921","orcid":"https://orcid.org/0000-0001-6361-4921","contributorId":67313,"corporation":false,"usgs":true,"family":"Conko","given":"K.","affiliations":[],"preferred":false,"id":433666,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Landa, E.","contributorId":49200,"corporation":false,"usgs":true,"family":"Landa","given":"E.","affiliations":[],"preferred":false,"id":433664,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Panov, B.","contributorId":16669,"corporation":false,"usgs":true,"family":"Panov","given":"B.","email":"","affiliations":[],"preferred":false,"id":433661,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Panov, Y.","contributorId":30470,"corporation":false,"usgs":true,"family":"Panov","given":"Y.","email":"","affiliations":[],"preferred":false,"id":433662,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Xu, H.","contributorId":83331,"corporation":false,"usgs":true,"family":"Xu","given":"H.","email":"","affiliations":[],"preferred":false,"id":433667,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70031786,"text":"70031786 - 2008 - Spatial patterns of ecohydrologic properties on a hillslope-alluvial fan transect, central New Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70031786","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1198,"text":"Catena","active":true,"publicationSubtype":{"id":10}},"title":"Spatial patterns of ecohydrologic properties on a hillslope-alluvial fan transect, central New Mexico","docAbstract":"Spatial patterns of soil properties are linked to patchy vegetation in arid and semi-arid landscapes. The patterns of soil properties are generally assumed to be linked to the ecohydrological functioning of patchy dryland vegetation ecosystems. We studied the effects of vegetation canopy, its spatial pattern, and landforms on soil properties affecting overland flow and infiltration in shrublands at the Sevilleta National Wildlife Refuge/LTER in central New Mexico, USA. We studied the patterns of microtopography and saturated conductivity (Ksat), and generally found it to be affected by vegetation canopy and pattern, as well as landform type. On gently sloping alluvial fans, both microtopography and Ksat are high under vegetation canopy and decay with distance from plant center. On steeper hillslope landforms, only microtopography was significantly higher under vegetation canopy, while there was no significant difference in Ksat between vegetation and interspaces. Using geostatistics, we found that the spatial pattern of soil properties was determined by the spatial pattern of vegetation. Most importantly, the effects of vegetation were present in the unvegetated interspaces 2-4 times the extent of vegetation canopy, on the order of 2-3??m. Our results have implications for the understanding the ecohydrologic function of semi-arid ecosystems as well as the parameterization of hydrologic models. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Catena","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.catena.2007.08.005","issn":"03418162","usgsCitation":"Bedford, D.R., and Small, E., 2008, Spatial patterns of ecohydrologic properties on a hillslope-alluvial fan transect, central New Mexico: Catena, v. 73, no. 1, p. 34-48, https://doi.org/10.1016/j.catena.2007.08.005.","startPage":"34","endPage":"48","numberOfPages":"15","costCenters":[],"links":[{"id":212425,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.catena.2007.08.005"},{"id":239912,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"73","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b949ce4b08c986b31aba7","contributors":{"authors":[{"text":"Bedford, D. R.","contributorId":9734,"corporation":false,"usgs":true,"family":"Bedford","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":433112,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Small, E.E.","contributorId":56403,"corporation":false,"usgs":true,"family":"Small","given":"E.E.","email":"","affiliations":[],"preferred":false,"id":433113,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035172,"text":"70035172 - 2008 - Application of a geomorphic and temporal perspective to wetland management in North America","interactions":[],"lastModifiedDate":"2018-01-05T11:35:10","indexId":"70035172","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Application of a geomorphic and temporal perspective to wetland management in North America","docAbstract":"The failure of managed wetlands to provide a broad suite of ecosystem services (e.g., carbon storage, wildlife habitat, ground-water recharge, storm-water retention) valuable to society is primarily the result of a lack of consideration of ecosystem processes that maintain productive wetland ecosystems or physical and social forces that restrict a manager's ability to apply actions that allow those processes to occur. Therefore, we outline a course of action that considers restoration of ecosystem processes in those systems where off-site land use or physical alterations restrict local management. Upon considering a wetland system, or examining a particular management regime, there are several factors that will allow successful restoration of wetland services. An initial step is examination of the political/social factors that have structured the current ecological condition and whether those realities can be addressed. Most successful restorations of wetland ecosystem services involve cooperation among multiple agencies, acquisition of funds from non-traditional sources, seeking of scientific advice on ecosystem processes, and cultivation of good working relationships among biologists, managers, and maintenance staff. Beyond that, in on-site wetland situations, management should examine the existing hydrogeomorphic situation and processes (e.g., climatic variation, tides, riverine flood-pulse events) responsible for maintenance of ecosystem services within a given temporal framework appropriate for that wetland's hydrologic pattern. We discuss these processes for five major wetland types (depressional, lacustrine, estuarine, riverine, and man-made impoundments) and then provide two case histories in which this approach was applied: Seney National Wildlife Refuge with a restored fen system and Bosque del Apache National Wildlife Refuge where riverine processes have been simulated to restore native habitat. With adequate partnerships and administrative and political support, managers faced with degraded and/or disconnected wetland processes will be able to restore ecosystem services for society in our highly altered landscape by considering wetlands in their given hydrogeomorphic setting and temporal stage. ?? 2008 The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1672/07-155.1","issn":"02775212","usgsCitation":"Smith, L., Euliss, N., Wilcox, D., and Brinson, M., 2008, Application of a geomorphic and temporal perspective to wetland management in North America: Wetlands, v. 28, no. 3, p. 563-577, https://doi.org/10.1672/07-155.1.","productDescription":"15 p.","startPage":"563","endPage":"577","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":215274,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/07-155.1"},{"id":243064,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ec8de4b0c8380cd49331","contributors":{"authors":[{"text":"Smith, L.M.","contributorId":82650,"corporation":false,"usgs":true,"family":"Smith","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":449584,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Euliss, N.H. Jr.","contributorId":54917,"corporation":false,"usgs":true,"family":"Euliss","given":"N.H.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":449582,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilcox, D.A.","contributorId":55382,"corporation":false,"usgs":true,"family":"Wilcox","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":449583,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brinson, M.M.","contributorId":90436,"corporation":false,"usgs":true,"family":"Brinson","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":449585,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030296,"text":"70030296 - 2008 - Relative importance of natural disturbances and habitat degradation on snail kite population dynamics","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70030296","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1497,"text":"Endangered Species Research","active":true,"publicationSubtype":{"id":10}},"title":"Relative importance of natural disturbances and habitat degradation on snail kite population dynamics","docAbstract":"Natural disturbances and habitat degradation are major factors influencing the dynamics and persistence of many wildlife populations, yet few large-scale studies have explored the relative influence of these factors on the dynamics and persistence of animal populations. We used longterm demographic data and matrix population models to examine the potential effects of habitat degradation and natural disturbances on the dynamics of the endangered snail kite Rostrhamus sociabilis in Florida, USA. We found that estimates of stochastic population growth rate were low (0.90). Population growth rate (??) during the first half or our study period (1992 to 1998) was substantially greater than during the second half (1999 to 2005). These 2 periods were characterized by contrasting hydrological conditions. Although ?? was most sensitive to changes in adult survival, the analysis of life table response experiments revealed that a reduction in fertility of kites accounted for >80% of the observed decline in population growth rate. We examined the possibility that the reduction in ?? was caused by (1) habitat degradation due to management, (2) an increase in frequency of moderate drying events in recent years, and (3) both habitat degradation and an increase in frequency of moderate drying events. Our results suggest that both factors could potentially contribute to a large decrease in population growth rate. Our study highlights the importance of simultaneously considering short- and long-term effects of disturbances when modeling population dynamics. Indeed, focusing exclusively on one type of effect may be misleading to both our understanding of the ecological dynamics of the system and to management. The relevance of our results to management is heightened because the snail kite has been selected as a key performance measure of one of the most ambitious ecosystem restoration projects ever undertaken. ?? Inter-Research 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Endangered Species Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3354/esr00119","issn":"18635","usgsCitation":"Martin, J., Kitchens, W., Cattau, C.E., and Oli, M., 2008, Relative importance of natural disturbances and habitat degradation on snail kite population dynamics: Endangered Species Research, v. 6, no. 1, p. 25-39, https://doi.org/10.3354/esr00119.","startPage":"25","endPage":"39","numberOfPages":"15","costCenters":[],"links":[{"id":476721,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/esr00119","text":"Publisher Index Page"},{"id":212118,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/esr00119"},{"id":239544,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa687e4b0c8380cd84eda","contributors":{"authors":[{"text":"Martin, J.","contributorId":18871,"corporation":false,"usgs":true,"family":"Martin","given":"J.","affiliations":[],"preferred":false,"id":426559,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kitchens, W.M.","contributorId":87647,"corporation":false,"usgs":true,"family":"Kitchens","given":"W.M.","affiliations":[],"preferred":false,"id":426561,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cattau, Christopher E.","contributorId":54406,"corporation":false,"usgs":true,"family":"Cattau","given":"Christopher","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":426560,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Oli, M.K.","contributorId":108069,"corporation":false,"usgs":true,"family":"Oli","given":"M.K.","affiliations":[],"preferred":false,"id":426562,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031785,"text":"70031785 - 2008 - Utilizing geochemical, hydrologic, and boron isotopic data to assess the success of a salinity and selenium remediation project, Upper Colorado River Basin, Utah","interactions":[],"lastModifiedDate":"2012-03-12T17:21:13","indexId":"70031785","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Utilizing geochemical, hydrologic, and boron isotopic data to assess the success of a salinity and selenium remediation project, Upper Colorado River Basin, Utah","docAbstract":"Stream discharge and geochemical data were collected at two sites along lower Ashley Creek, Utah, from 1999 to 2003, to assess the success of a site specific salinity and Se remediation project. The remediation project involved the replacement of a leaking sewage lagoon system that was interacting with Mancos Shale and increasing the dissolved salinity and Se load in Ashley Creek. Regression modeling successfully simulated the mean daily dissolved salinity and Se loads (R2 values ranging from 0.82 to 0.97) at both the upstream (AC1) and downstream (AC2/AC2A) sites during the study period. Prior to lagoon closure, net gain in dissolved-salinity load exceeded 2177??metric tons/month and decreased after remediation to less than 590??metric tons/month. The net gain in dissolved Se load during the same pre-closure period exceeded 120??kg/month and decreased to less than 18??kg/month. Sen's slope estimator verified the statistical significance of the modeled reduction in monthly salinity and Se loads. Measured gain in dissolved constituent loads during seepage tests conducted during September and November 2003 ranged from 0.334 to 0.362??kg/day for dissolved Se and 16.9 to 26.1??metric tons/day for dissolved salinity. Stream discharge and changes in the isotopic values of delta boron-11 (??11B) were used in a mixing model to differentiate between constituent loadings contributed by residual sewage effluent and naturally occurring ground-water seepage entering Ashley Creek. The majority of the modeled ??11B values of ground-water seepage were positive, indicative of minimal seepage contributions from sewage effluent. The stream reach between sites S3 and AC2A contained a modeled ground-water seepage ??11B value of - 2.4???, indicative of ground-water seepage composed of remnant water still draining from the abandoned sewage lagoons.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science of the Total Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.scitotenv.2007.10.047","issn":"00489697","usgsCitation":"Naftz, D.L., Bullen, T., Stolp, B., and Wilkowske, C., 2008, Utilizing geochemical, hydrologic, and boron isotopic data to assess the success of a salinity and selenium remediation project, Upper Colorado River Basin, Utah: Science of the Total Environment, v. 392, no. 1, p. 1-11, https://doi.org/10.1016/j.scitotenv.2007.10.047.","startPage":"1","endPage":"11","numberOfPages":"11","costCenters":[],"links":[{"id":212401,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2007.10.047"},{"id":239880,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"392","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc0e0e4b08c986b32a387","contributors":{"authors":[{"text":"Naftz, D. L.","contributorId":40624,"corporation":false,"usgs":true,"family":"Naftz","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":433108,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bullen, T.D.","contributorId":79911,"corporation":false,"usgs":true,"family":"Bullen","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":433111,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stolp, Bernard J. 0000-0003-3803-1497","orcid":"https://orcid.org/0000-0003-3803-1497","contributorId":71942,"corporation":false,"usgs":true,"family":"Stolp","given":"Bernard J.","affiliations":[],"preferred":false,"id":433110,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilkowske, C.D.","contributorId":63050,"corporation":false,"usgs":true,"family":"Wilkowske","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":433109,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70033759,"text":"70033759 - 2008 - Cardiopulmonary responses of intratracheally instilled tire particles and constituent metal components","interactions":[],"lastModifiedDate":"2018-10-22T09:04:03","indexId":"70033759","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1995,"text":"Inhalation Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Cardiopulmonary responses of intratracheally instilled tire particles and constituent metal components","docAbstract":"

Tire and brake wear particles contain transition metals, and contribute to near-road PM. We hypothesized that acute cardiopulmonary injury from respirable tire particles (TP) will depend on the amount of soluble metals. Respirable fractions of two types of TP (TP1 and TP2) were analyzed for water and acid-leachable metals using ICP-AES. Both TP types contained a variety of transition metals, including zinc (Zn), copper (Cu), aluminum, and iron. Zn and Cu were detected at high levels in water-soluble fractions (TP2 > TP1). Male Wistar Kyoto rats (12–14 wk) were intratracheally instilled, in the first study, with saline, TP1 or TP2 (5 mg/kg), and in the second study, with soluble Zn, Cu (0.5 μ mol/kg), or both. Pulmonary toxicity and cardiac mitochondrial enzymes were analyzed 1 d, 1 wk, or 4 wk later for TP and 4 or 24 h later for metals. Increases in lavage fluid markers of inflammation and injury were observed at d 1 (TP2 > TP1), but these changes reversed by wk 1. No effects on cardiac enzymes were noted with either TP. Exposure of rats to soluble Zn and Cu caused marked pulmonary inflammation and injury but temporal differences were apparent (Cu effects peaked at 4 h and Zn at 24 h). Instillation of Zn, Cu, and Zn+ Cu decreased the activity of cardiac aconitase, isocitrate dehydrogenase, succinate dehydrogenase, cytochrome-c-oxidase and superoxide dismutase suggesting mitochondrial oxidative stress. The observed acute pulmonary toxicity of TP could be due to the presence of water soluble Zn and Cu. At high concentrations these metals may induce cardiac oxidative stress.

","language":"English","publisher":"Taylor and Francis","doi":"10.1080/08958370701858427","issn":"08958378","usgsCitation":"Gottipolu, R., Landa, E.R., Schladweiler, M., McGee, J., Ledbetter, A., Richards, J., Wallenborn, G., and Kodavanti, U., 2008, Cardiopulmonary responses of intratracheally instilled tire particles and constituent metal components: Inhalation Toxicology, v. 20, no. 5, p. 473-484, https://doi.org/10.1080/08958370701858427.","productDescription":"12 p.","startPage":"473","endPage":"484","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241836,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214142,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/08958370701858427"}],"volume":"20","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-10-06","publicationStatus":"PW","scienceBaseUri":"5059f376e4b0c8380cd4b821","contributors":{"authors":[{"text":"Gottipolu, R.R.","contributorId":37550,"corporation":false,"usgs":true,"family":"Gottipolu","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":442321,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Landa, E. R.","contributorId":100002,"corporation":false,"usgs":true,"family":"Landa","given":"E.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":442325,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schladweiler, M.C.","contributorId":93288,"corporation":false,"usgs":true,"family":"Schladweiler","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":442323,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McGee, J.K.","contributorId":25372,"corporation":false,"usgs":true,"family":"McGee","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":442319,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ledbetter, A.D.","contributorId":26893,"corporation":false,"usgs":true,"family":"Ledbetter","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":442320,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Richards, J.H.","contributorId":49164,"corporation":false,"usgs":true,"family":"Richards","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":442322,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wallenborn, G.J.","contributorId":103884,"corporation":false,"usgs":true,"family":"Wallenborn","given":"G.J.","email":"","affiliations":[],"preferred":false,"id":442326,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kodavanti, U.P.","contributorId":99390,"corporation":false,"usgs":true,"family":"Kodavanti","given":"U.P.","email":"","affiliations":[],"preferred":false,"id":442324,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70033757,"text":"70033757 - 2008 - The effect of terrace geology on ground-water movement and on the interaction of ground water and surface water on a mountainside near Mirror Lake, New Hampshire, USA","interactions":[],"lastModifiedDate":"2018-10-22T09:29:51","indexId":"70033757","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"The effect of terrace geology on ground-water movement and on the interaction of ground water and surface water on a mountainside near Mirror Lake, New Hampshire, USA","docAbstract":"

The west watershed of Mirror Lake in the White Mountains of New Hampshire contains several terraces that are at different altitudes and have different geologic compositions. The lowest terrace (FSE) has 5 m of sand overlying 9 m of till. The two next successively higher terraces (FS2 and FS1) consist entirely of sand and have maximum thicknesses of about 7 m. A fourth, and highest, terrace (FS3) lies in the north-west watershed directly adjacent to the west watershed. This highest terrace has 2 m of sand overlying 8 m of till. All terraces overlie fractured crystalline bedrock. Numerical models of hypothetical settings simulating ground-water flow in a mountainside indicated that the presence of a terrace can cause local ground-water flow cells to develop, and that the flow patterns differ based on the geologic composition of the terrace. For example, more ground water moves from the bedrock to the glacial deposits beneath terraces consisting completely of sand than beneath terraces that have sand underlain by till. Field data from Mirror Lake watersheds corroborate the numerical experiments. The geology of the terraces also affects how the stream draining the west watershed interacts with ground water. The stream turns part way down the mountainside and passes between the two sand terraces, essentially transecting the movement of ground water down the valley side. Transects of water-table wells were installed across the stream's riparian zone above, between, and below the sand terraces. Head data from these wells indicated that the stream gains ground water on both sides above and below the sand terraces. However, where it flows between the sand terraces the stream gains ground water on its uphill side and loses water on its downhill side. Biogeochemical processes in the riparian zone of the flow-through reach have resulted in anoxic ground water beneath the lower sand terrace. Results of this study indicate that it is useful to understand patterns of ground-water flow in order to fully understand the flow and chemical characteristics of both ground water and surface water in mountainous terrain. 

","language":"English","publisher":"Wiley","doi":"10.1002/hyp.6593","issn":"08856087","usgsCitation":"Winter, T.C., Buso, D., Shattuck, P., Harte, P., Vroblesky, D., and Goode, D., 2008, The effect of terrace geology on ground-water movement and on the interaction of ground water and surface water on a mountainside near Mirror Lake, New Hampshire, USA: Hydrological Processes, v. 22, no. 1, p. 21-32, https://doi.org/10.1002/hyp.6593.","productDescription":"12 p.","startPage":"21","endPage":"32","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241801,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214111,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6593"}],"country":"United States ","volume":"22","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-06-18","publicationStatus":"PW","scienceBaseUri":"505bab57e4b08c986b322d97","contributors":{"authors":[{"text":"Winter, T. C.","contributorId":23485,"corporation":false,"usgs":true,"family":"Winter","given":"T.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":442312,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Buso, D.C.","contributorId":31392,"corporation":false,"usgs":true,"family":"Buso","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":442313,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shattuck, P.C.","contributorId":60455,"corporation":false,"usgs":true,"family":"Shattuck","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":442315,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Harte, P. T. 0000-0002-7718-1204","orcid":"https://orcid.org/0000-0002-7718-1204","contributorId":36143,"corporation":false,"usgs":true,"family":"Harte","given":"P. T.","affiliations":[],"preferred":false,"id":442314,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Vroblesky, D.A.","contributorId":101691,"corporation":false,"usgs":true,"family":"Vroblesky","given":"D.A.","affiliations":[],"preferred":false,"id":442317,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Goode, D.J. 0000-0002-8527-2456","orcid":"https://orcid.org/0000-0002-8527-2456","contributorId":95512,"corporation":false,"usgs":true,"family":"Goode","given":"D.J.","affiliations":[],"preferred":false,"id":442316,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70033752,"text":"70033752 - 2008 - Impairment of the reproductive potential of male fathead minnows by environmentally relevant exposures to 4-nonylphenolf","interactions":[],"lastModifiedDate":"2018-10-17T10:05:23","indexId":"70033752","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":874,"text":"Aquatic Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Impairment of the reproductive potential of male fathead minnows by environmentally relevant exposures to 4-nonylphenolf","docAbstract":"

The synthetic organic compound 4-nonylphenol (NP) has been detected in many human-impacted surface waters in North America. In this study, we examined the ability of NP to alter reproductive competence in male fathead minnows after a 28 day flow-through exposure in a range of environmentally relevant concentrations bracketing the U.S. Environmental Protection Agency toxicity-based NP chronic exposure criterion of 6.1 μg NP/L. Exposure to NP at and above the EPA chronic exposure criterion resulted in an induction of plasma vitellogenin (VTG) within 14 days. However, 7 days after the cessation of exposure, VTG concentrations had dropped more than 50% and few males expressed VTG above the detection threshold. All of the morphological endpoints, including gonadosomatic index, hepatosomatic index, secondary sexual characters, and histopathology, were unaltered by all NP treatments. However, when NP-exposed male fish were allowed to compete with control males for access to nest sites and females, most treatments altered the reproductive competence of exposed males. At lower NP concentrations, exposed males out-competed control males, possibly by being primed through the estrogenic NP exposure in a fashion similar to priming by pheromones released from female fathead minnows. At higher NP exposure concentrations, this priming effect was negated by the adverse effects of the exposure and control males out-competed treated males. Results of this study indicate the complexity of endocrine disrupting effects and the need for multiple analysis levels to assess the effects of these compounds on aquatic organisms.

","language":"English","publisher":"Elsevier","doi":"10.1016/j.aquatox.2007.10.004","issn":"0166445X","usgsCitation":"Schoenfuss, H., Bartell, S., Bistodeau, T., Cediel, R., Grove, K., Zintek, L., Lee, K.E., and Barber, L.B., 2008, Impairment of the reproductive potential of male fathead minnows by environmentally relevant exposures to 4-nonylphenolf: Aquatic Toxicology, v. 86, no. 1, p. 91-98, https://doi.org/10.1016/j.aquatox.2007.10.004.","productDescription":"8 p.","startPage":"91","endPage":"98","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":242261,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214527,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.aquatox.2007.10.004"}],"volume":"86","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3903e4b0c8380cd6178a","contributors":{"authors":[{"text":"Schoenfuss, H.L.","contributorId":103877,"corporation":false,"usgs":true,"family":"Schoenfuss","given":"H.L.","affiliations":[],"preferred":false,"id":442299,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bartell, S.E.","contributorId":40817,"corporation":false,"usgs":true,"family":"Bartell","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":442293,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bistodeau, T.B.","contributorId":27283,"corporation":false,"usgs":true,"family":"Bistodeau","given":"T.B.","email":"","affiliations":[],"preferred":false,"id":442292,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cediel, R.A.","contributorId":100626,"corporation":false,"usgs":true,"family":"Cediel","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":442298,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Grove, K.J.","contributorId":95282,"corporation":false,"usgs":true,"family":"Grove","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":442296,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zintek, Larry","contributorId":73027,"corporation":false,"usgs":true,"family":"Zintek","given":"Larry","email":"","affiliations":[],"preferred":false,"id":442295,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lee, K. E.","contributorId":100014,"corporation":false,"usgs":true,"family":"Lee","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":442297,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Barber, L. B.","contributorId":64602,"corporation":false,"usgs":true,"family":"Barber","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":442294,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ]}