Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Fate and Exposure Modeling in Terrestrial Ecosystems: A Process Approach. (Chapter 16).
Author Bird, S. L. ;
CORP Author Environmental Research Lab., Athens, GA. Office of Research and Development.
Publisher 1994
Year Published 1994
Report Number EPA/600/A-94/232;
Stock Number PB95-138228
Additional Subjects Birds ; Pesticides ; Environmental exposure pathway ; Terrestrial ecosystems ; Reprints ; Agricultural chemicals ; Environmental persistence ; Bioaccumulation ; Absorption(Biology) ; Environmental transport ; Food chains ; Water pollution ; Air pollution ; Land pollution ; Soil contamination ; Modeling ; Environmental fate
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB95-138228 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/06/1995
Collation 13p
Pathways for exposure of birds to pesticides include soil, water, air, soil-dwelling organisms, and insects. A process approach to avian exposure calculates transport and transformation of agricultural chemicals through each of the exposure media. Differential equations calculating the time rate of change of chemical in each exposure medium are solved in this approach. Development of terrestrial exposure algorithms at the United States Environmental Protection Agency (U.S. EPA), Environmental Research Laboratory, Athens, GA, draws on validated technology where well-established methodologies do not exist. Supporting data for soils, meteorology, crops and cropping scenarios, and species distribution data are being developed on a regional scale based on the 186 major land resource areas (MLRA) defined by the United States Department of Agriculture (USDA). This chapter further describes the process-oriented, mechanistically based approach to avian exposure calculations, the supporting databases required for doing regional analyses, and the interactive system design for accessing this information.