Record Display for the EPA National Library Catalog

RECORD NUMBER: 161 OF 1338

OLS Field Name OLS Field Data
Main Title Case Studies and Model Testing of the Metals Exposure Analysis Modeling System (MEXAMS).
Author Medine, A. J. ; Bicknell, B. R. ;
CORP Author Anderson-Nichols and Co., Inc., Palo Alto, CA. ;Ecosystem Research Inst., Logan, UT. ;AQUA TERRA Consultants, Mountain View, CA.;Environmental Research Lab., Athens, GA.
Year Published 1986
Report Number EPA-68-03-3116; EPA/600/3-86/045;
Stock Number PB87-141081
Additional Subjects Water quality ; Metals ; Water pollution ; Models ; Tests ; Analyzing ; Effluents ; Transport properties ; Sediments ; Naugatuck River ; Ten Mile River ; White River ; Metals exposure analysis modeling system ; MEXAMS(Metals Exposure Analysis Modeling System) ; Aquatic ecosystems ; Heavy metals ; Fate ; Speciation ; Particle resuspension ; Case Studies ; Aquatic Exposure Assessment Model ; EXAMS(Aquatic Exposure Assessment Model) ; Environmental Protection Agency
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB87-141081 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 201p
Abstract
The Metals Exposure Analysis Modeling System (MEXAMS), linking a complex speciation model with an aquatic transport/fate model, should help discriminate between the fraction of metal that is dissolved and in bioavailable form and the fraction that is complexed and rendered relatively nontoxic. The MEXAMS model has been tested with data from three rivers to determine its ability to simulate fate, transport, and speciation of heavy metals in river systems. The rivers selected for study were the Naugatuck River in Connecticut and the Ten Mile River in Massachusetts, both of which receive electroplating and metal finishing wastes, and the White River in Utah, which receives metal loadings from natural sources. The report documents the tests as case studies to guide future users in the application of the model. In addition, the program has been enhanced by addition of sediment settling/resuspension to the aquatic transport submodel EXAMS.