You are here:
SENSITIVITY ANALYSIS OF RELMAP (REGIONAL LAGRANGIAN MODEL OF AIR POLLUTION) INVOLVING FINE AND COARSE PARTICULATE MATTER
Citation:
Eder, B. SENSITIVITY ANALYSIS OF RELMAP (REGIONAL LAGRANGIAN MODEL OF AIR POLLUTION) INVOLVING FINE AND COARSE PARTICULATE MATTER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-86/248 (NTIS PB87112330), 1986.
Description:
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.