Record Display for the EPA National Library Catalog

RECORD NUMBER: 152 OF 516

OLS Field Name OLS Field Data
Main Title Fate, Transport, and Transformation of Toxics: Significance of Suspended Sediment and Fluid Mud.
Author Nichols, Maynard ; Harris, Richard ; Thompson, Galen ; Nelson, Bruce ;
CORP Author Virginia Inst. of Marine Science, Gloucester Point.;Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Year Published 1982
Report Number EPA-R-806002; EPA-600/3-82-089;
Stock Number PB83-116426
Additional Subjects Metals ; Suspended sediments ; Water pollution ; Chesapeake Bay ; Mud ; Concentration(Composition) ; Arsenic ; Copper ; Manganese ; Nickel ; Lead(Metal) ; Tin ; Zinc ; Iron ; Circulation ; Particle size ; Toxicity ; Water flow ; Susquehanna River ; Sediment transport ; Tables(Data) ; Path of pollutants ; Baltimore Harbor
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB83-116426 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 114p
Abstract
The objective of the report is to determine the distribution of selected metals in suspended material and fluid mud, to identify potential zones of toxic accumulation, and to trace their transport routes. Observations of flow, salinity, suspended material, pH, and dissolved oxygen were accomplished in Bay-wide longitudinal sections and at four anchor stations in the northern Bay between March 1979 and April 1980. The observations cover a range of conditions, including seasonal high-low river discharge, sediment influx, neap-spring tide range, and oxygenated-anoxic water. Samples of suspended material, fluid mud, and bed sediment were analyzed for their particle size, organic matter, and metal content. Metal concentrations of As, Cu, Mn, Ni, Pb, Sn, and Zn in fluid mud and bed sediment per gram of material decrease seaward from a maximum in the Baltimore-Susquehanna River Area. Management and monitoring strategies are provided to reduce potentially toxic metals to acceptable levels and warn management agencies of toxic hazards.