Record Display for the EPA National Library Catalog


Main Title Sensitivity Analysis of RELMAP (REgional Lagrangian Model of Air Pollution) Involving Fine and Coarse Particulate Matter.
Author Eder., B. K. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1986
Report Number EPA/600/D-86/248;
Stock Number PB87-112330
Additional Subjects Air pollution ; Atmospheric models ; Concentration(Composition) ; Sulfur dioxide ; Sulfates ; Particulate sampling ; Regional lagrangian model ; Particulates ; RELMAP model
Library Call Number Additional Info Location Last
NTIS  PB87-112330 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
The REgional Lagrangian Model of air pollution (RELMAP) is a mass-conserving, regional scale, Lagrangian model that simulates ambient concentrations as well as wet and dry deposition of SO2, SO4(2-), and more recently fine (diameters<2.5 micrometers) and coarse (2.5 < diameter < 10.0 micrometers) particulate matter over the eastern third of the United States and southeastern Canada. The simulations of fine and coarse particulate matter, which involve simple parameterizations, were recently incorporated into the model in response to impending federal regulatory standards for inhalable particulate matter and the subsequent need for size discriminate models. These new parameterizations, which include the transformation of SO2 into SO4(2-), and the wet and dry deposition of fine and coarse particulate matter were allowed to vary within + or- 50% of their respective nominal values in order to determine the model's sensitivity to them. Future research should concentrate on refining the wet deposition parameterizations, as they not only prove to be the most influential in the model's output, but they are also currently the least understood.