David S. Ross
2004, Journal of Physical Chemistry B (108) 19076-19077
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateKimberlee K. Barnes, Scott C. Christenson, Dana W. Kolpin, Michael J. Focazio, Edward T. Furlong, Steven D. Zaugg, Michael T. Meyer, Larry B. Barber
2004, Groundwater Monitoring & Remediation (24) 119-126
Ground water samples collected from the Norman Landfill research site in central Oklahoma were analyzed as part of the U.S. Geological Survey (USGS) Toxic Substances Hydrology Program's national reconnaissance of pharmaceuticals and other organic waste water contaminants (OWCs) in ground water. Five sites, four of which are located downgradient of...
M. J. Focazio, D.W. Kolpin, E. T. Furlong
2004, Book chapter, Pharmaceuticals in the environment
The widespread environmental presence of some pharmaceuticals and other organic wastewater compounds has been documented globally (e.g. Buser et al. 1998; Ternes 1998; Stumpf et al.1999; Heberer et al. 2001; Kümmerer 2001; Ternes et al. 2001; Scheytt et al. 2001; Golet et al. 2002; Kolpin et al. 2002; Boyd et...
Randall W. Jibson, Anthony J. Crone, Edwin Harp, Rex Baum, Jon J. Major, Carlos Pullinger, C.D. Escobar, Mauricio Martinez, Mark E. Smith
2004, Special Paper of the Geological Society of America (375) 69-88
During a one-month period in early 2001, El Salvador experienced two devastating earthquakes. On 13 January, a M-7.7 earthquake centered ∼40 km off the southern coast in the Pacific Ocean caused widespread damage and fatalities throughout much of the country. The earthquake triggered thousands of landslides that were broadly scattered across the southern half of the...
Jon J. Major, Steve P. Schilling, Carlos Pullinger, C.D. Escobar
2004, Special Paper of the Geological Society of America (375) 89-108
Volcanic debris flows (lahars) in El Salvador pose a significant risk to tens of thousands of people as well as to property and important infrastructure. Major cities and nearly a third of the country's population are located near San Salvador, San Vicente, and San Miguel volcanoes. Debris flows traveling as...
Ean Warren, Barbara A. Bekins, E. Michael Godsy, Virginia K. Smith
2004, Bioremediation Journal (8) 1-11
Results from a series of studies of methanogenic processes in crude oil- and creosote-contaminated aquifers indicate that acetoclastic methanogenesis is inhibited near non-aqueous sources. At a crude oil-contaminated site, numbers of acetoclastic methanogens found close to crude oil were one hundred times fewer than those of hydrogen- and formate-utilizing methanogens....
R.F. Keim, A.B. Price, T. S. Hardin, Arne E. Skaugset, D.S. Bateman, R. E. Gresswell, S. D. Tesch
2004, Book
This annotated bibliography is a response to widespread interest in stream habitat improvement in the Pacific Northwest by land managers, governmental and nongovernmental organizations, and the lay public. Several guides to stream habitat improvement have been written in the past, but may not be easily accessible to people from diverse...
Cecily C.Y. Chang, Steven R. Silva, Carol Kendall, Greg Michalski, Karen L. Casciotti, Scott D. Wankel
P. A. de Groot, editor(s)
2004, Book chapter, Handbook of stable isotope analytical techniques
This chapter reviews methods for analyzing "natural abundance" nitrogen-bearing compounds in water for δ15N, δ18O, and δ17O. The techniques that are reviewed are Kjeldahl distillation and digestion, diffusion, micro diffusion, ion exchange, and microbial denitrifier methods. It overlaps the contents of the preparation of ecological and biogeochemical samples for isotope...
Juske Horita, Carol Kendall
P. A. de Groot, editor(s)
2004, Book chapter, Handbook of stable isotope analytical techniques
This chapter reviews the recent developments and refinements of analytical methods for preparing waters and other aqueous samples of different origins for the measurement of the oxygen and hydrogen isotopes by conventional dual-inlet, dynamic gas-source isotope-ratio mass spectrometry. The emerging techniques of continuous-flow mass-spectrometry are discussed as they are employed...
Claudia C. Faunt, Frank A. D’Agnese, Grady M. O’Brien
Wayne R. Belcher, Donald S. Sweetkind, editor(s)
2004, Book chapter, Death Valley regional groundwater flow system, Nevada and California--hydrogeologic framework and transient groundwater flow model
No abstract available....
Water Resources Division, U.S. Geological Survey
2004, Report
A digital representation of the watersheds of 43 sites on large river systems sampled by the National Stream Quality Accounting Network (NASQAN) of the U. S. Geological Survey (USGS) in 2000 was created primarily from 1:250,000 hydrologic units(HUCs) in the United States. Watershed information from Canada and Mexico was incorporated...
Ralph C. Heath
2004, Water Supply Paper 2220
Ground water is one of the Nation's most valuable natural resources. It is the source of about 40 percent of the water used for all purposes exclusive of hydropower generation and electric powerplant cooling.Surprisingly, for a resource that is so widely used and so important to the health and to...
Thomas M. Johnson, Thomas D. Bullen
2004, Book chapter, Handbook of stable isotope analytical techniques
This chapter focuses on the double-spike calibrated thermal ionization mass spectrometry (TIMS) methods for measurement of mass dependent isotope fractionation in Se, Fe, and Cr. Current measurement precision is approximately ± 0.2 per mil on 80Se / 76Se, 56Fe / 54Fe, and 53Cr / 52Cr. Sample size requirements are 500ng, 1μg, and 250ng for Se, Fe,...
Robert P. Eganhouse
2004, Book chapter, The geochemical society special publications
Molecular markers are organic substances that carry information about sources of organic matter or contamination. The source/marker relation can be used to indicate the presence of a given source material (qualitative), or, under appropriate conditions, to estimate the amount of a source material (quantitative source apportionment) in the environment. Assemblages...
Debra A. Willard, Christopher E. Bernhardt, Lisa M. Weimer, S. R. Cooper, Desire Gamez, Jennifer Jensen
2004, Palynology (28) 175-227
An illustrated, descriptive atlas of pollen and spores from wetland plants of the Florida Everglades was compiled to facilitate identification of dispersed palynomorphs in sediments. The atlas includes 121 wetland species characteristic of eleven plant associations of the Florida Everglades including sloughs, sawgrass marshes, tree islands, wet prairies, cypress domes,...
Lee L. Landkamer, R.W. Harvey, D. W. Metge, J. N. Ryan
Jay R. Alder, R.R. Seal, editor(s)
2004, Book chapter, Water rock interaction
No abstract available....
David P. Krabbenhoft
2004, Book chapter, Water and sustainable development: Opportunities for the chemical sciences: A workshop report to the chemical sciences roundtable
No abstract available. ...
C. L. Brown, Samuel N. Luoma, Francis Parchaso, Janet K. Thompson
2004, Book chapter, The pulse of the estuary: Monitoring and managing water quality in the San Francisco estuary
No abstract available....
Keith A. Kvenvolden, Frances D. Hostettler
R.J. Hill, J. Leventhal, Zeev Aizenshtat, Mary Jo Baedecker, George E. Claypool, Robert P. Eganhouse, editor(s)
2004, Book chapter, Geochemical investigations in earth and space science: A tribute to Isaac R. Kaplan
No abstract available. ...
B. Guinand, K.T. Scribner, A. Topchy, K.S. Page, W. Punch, M. K. Burnham-Curtis
2004, Environmental Biology of Fishes (69) 245-259
We demonstrate the effectiveness of a genetic algorithm for discovering multi-locus combinations that provide accurate individual assignment decisions and estimates of mixture composition based on likelihood classification. Using simulated data representing different levels of inter-population differentiation (Fst ~ 0.01 and 0.10), genetic diversities (four or eight alleles per locus), and...
T. J. O'Shea, L.E. Ellison, T.R. Stanley
W.L. Thompson, editor(s)
2004, Book chapter, Sampling rare or elusive species: concepts, designs, and techniques for estimating population parameters
No abstract available....
J.W. Ball, R.L. Runkel, D. Kirk Nordstrom
2004, Book chapter, Environmental sciences and environmental computing
Reactive-transport processes in Wightman Fork and the Alamosa River downstream from the SummitvilleMine, south-central Colorado, were simulated at low and high flow using the OTEQ reactive-transport model.The simulations were calibrated using data from synoptic studies conducted during October 1998 and June1999. Discharge over the 30-km reach from just below the...
Gregory J. Walsh, John N. Aleinikoff, C. Mark Fanning
2004, Book chapter
Geologic mapping and U-Pb geochronology by ion microprobe on zircon, titanite, and monazite in the New Milford quadrangle, western Connecticut indicate Meso-proterozoic events at ca. 1.3, 1.05, and 0.99 Ga in the Laurentian basement rocks. Pink granite gneiss (1311 ± 7 Ma) intruded a paragneiss sequence during the early stages...
John R. Nimmo
2004, Book chapter, Encyclopedia of soils in the environment
No abstract available. ...
James S. Kuwabara, C.C.Y. Chang, S.P. Pasilis
James S. Kuwabara, C. C. Fuller, editor(s)
2004, Book chapter, Toxic substances in surface waters and sediments: A study to assess the effects of arsenic-contaminated alluvial sediment in Whitewood Creek, South Dakota
Field measurements and bioassay experiments were done to investigate the effects of arsenic and phosphorus interactions on sorption of these solutes by the benthic flora (periphyton and submerged macrophytes) in Whitewood Creek, a stream in western South Dakota. Short-term (24-hour) sorption experiments were used to determine arsenic transport characteristics...