Record Display for the EPA National Library Catalog


Main Title Modeling of Regional-Scale Atmospheric Mercury Transport and Deposition Using RELMAP.
Author Bullock, O. R. ; Benjey, W. G. ; Keating, M. H. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.
Publisher 1995
Year Published 1995
Report Number EPA/600/A-95/115;
Stock Number PB96-114566
Additional Subjects Atmospheric models ; Mercury(Metal) ; Air pollution ; Water pollution ; Computerized simulation ; Gases ; Particulates ; Mathematical models ; Environmental transport ; Deposition ; Diffusion ; Oxidation reduction reactions ; Exposure ; Emission ; Precipitation(Meteorology) ; Heavy metals ; RELMAP(Regional Lagrangian Model of Air Pollution) ; Wet deposition ; Dry deposition
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB96-114566 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 70p
The Regional Lagrangian Model of Air Pollution (RELMAP) is used to simulate the emission, transport and diffusion, chemical transformation, and wet and dry deposition of elemental mercury gas, divalent mercury gas and particulate mercury. Based on recent modeling advances in Europe, the RELMAP has been modified to simulate a reduction-oxidation (redox) balance for mercury dissolved in cloud and rain water. This redox balance is used in the estimation of a variable precipitation scavenging ratio for elemental mercury. The results of the simulation are used to estimate the quantity of mercury emitted to the air annually over the United States and the amount that is subsequently deposited back to U.S. soils and water bodies. An analysis of the modeling results also provides some information about the areas of the country thought to have the most significant exposure from all air emissions of mercury.