Data compilation for assessing sediment and toxic chemical loads from the Green River to the lower Duwamish Waterway, Washington
Data Series
880
Prepared in cooperation with the Washington State Department of Ecology.
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Abstract
Between February and June 2013, the U.S. Geological Survey collected representative samples of whole water, suspended sediment, and (or) bed sediment from a single strategically located site on the Duwamish River, Washington, during seven periods of different flow conditions. Samples were analyzed by Washington-State-accredited laboratories for a large suite of compounds, including polycyclic aromatic hydrocarbons and other semivolatile compounds, polychlorinated biphenyl Aroclors and the 209 congeners, metals, dioxins/furans, volatile organic compounds, pesticides, butyltins, hexavalent chromium, and total organic carbon. Chemical concentrations associated with bulk bed sediment (<2 mm) and fine bed sediment (<62.5 μm) fractions were compared to chemical concentrations associated with suspended sediment. Bulk bed sediment concentrations generally were lower than fine bed sediment and suspended-sediment concentrations. Concurrent with the chemistry sampling, additional parameters were measured, including instantaneous river discharge, suspended-sediment concentration, sediment particle-size distribution, and general water-quality parameters. From these data, estimates of instantaneous sediment and chemical loads from the Green River to the Lower Duwamish Waterway were calculated.
Suggested Citation
Conn, K., Black, R.W., 2014, Data compilation for assessing sediment and toxic chemical loads from the Green River to the lower Duwamish Waterway, Washington: U.S. Geological Survey Data Series 880, Report: vii, 46 p.; Appendix, https://doi.org/10.3133/ds880.
ISSN: 2327-638X (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Data compilation for assessing sediment and toxic chemical loads from the Green River to the lower Duwamish Waterway, Washington |
| Series title | Data Series |
| Series number | 880 |
| DOI | 10.3133/ds880 |
| Year Published | 2014 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Washington Water Science Center |
| Description | Report: vii, 46 p.; Appendix |
| Country | United States |
| State | Washington |
| Other Geospatial | Duwamish Waterway |
| Online Only (Y/N) | Y |