Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Quality of Bottom Material and Elutriates in the Lower Willamette River, Portland Harbor, Oregon
The U.S. Army Corps of Engineers (COE) maintains a 40-foot deep navigation channel in Portland Harbor from the mouth of the Willamette River to river mile (RM) 12. Sediment deposition in the channel occurs primarily from RM 3 to RM 10. As a result of this deposition, the COE projects that over 400,000 cubic yards of bottom material will be dredged from the harbor each year. Aquatic organisms rely on a delicate balance of trace elements found in water and bottom material and may be affected if this balance is chemically degraded by contaminants associated with the disposal of dredge spoils. The purpose of the report is to describe chemical concentrations of Portland Harbor bottom material and elutriate-test filtrate (ETF) along with data from earlier studies.
Quality of Bottom Material and Elutriates in the Lower Willamette River, Portland Harbor, Oregon
The U.S. Army Corps of Engineers (COE) maintains a 40-foot deep navigation channel in Portland Harbor from the mouth of the Willamette River to river mile (RM) 12. Sediment deposition in the channel occurs primarily from RM 3 to RM 10. As a result of this deposition, the COE projects that over 400,000 cubic yards of bottom material will be dredged from the harbor each year. Aquatic organisms rely on a delicate balance of trace elements found in water and bottom material and may be affected if this balance is chemically degraded by contaminants associated with the disposal of dredge spoils. The purpose of the report is to describe chemical concentrations of Portland Harbor bottom material and elutriate-test filtrate (ETF) along with data from earlier studies.
Quality of Bottom Material and Elutriates in the Lower Willamette River, Portland Harbor, Oregon
G. J. Fuhrer (Autor:in)
1989
38 pages
Report
Keine Angabe
Englisch
Solid Wastes Pollution & Control , Hydrology & Limnology , Organic compounds , Metals , Willamette River , Waste disposal , Water pollution , Spoil , Dredging , Substrates , Spatial distribution , Chlorine organic compounds , Biphenyl , Suspended sediments , Aquatic animals , Concentration(Composition) , Trace elements , Lead(Metal) , Zinc , Portland Harbor , Polychlorinated biphenyl
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