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Main Title Air Qualtiy Modeling at Coarse-to-Fine Scales in Urban Areas.
Author Ching, J.; Dupont, S.; Herwehe, J.; Otte, T.; Lacser, A.;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Publisher 2003
Year Published 2003
Stock Number PB2004-106754
Additional Subjects Atmospheric models; Urban areas; Air polltuion control; Air quaity; Photochemistry; Ambient concentration levels; Multi-scale modeling; Community Multiscale Air Quality(CMAQ); Coarse-to-fine scales; Hot spots; Air toxics
Holdings
Library   Call Number Additional Info Location Last
Modified
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Status
NTIS PB2004-106754 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 10/29/2004
Collation 10p
Abstract
Many air toxic pollutants are photo chemically active; their ambient concentration levels will, therefore, depend on both the magnitude of the secondary products from the inflow regional background as well as from fresh emissions. In principle, the Community Multi-scale Air Quality (CMAQ) modeling system with its multi-scale modeling attributes can provide the ambient concentrations of air toxics from both regional and local sources and through advanced treatment of chemical, transport and deposition pathways. This paper explores the CMAQ capability to provide adequate temporal information and regional to fine scales spatial detail of air toxics concentration fields to support community exposure and risk-based modeling with emphasis of assessments of urban areas that experience high air toxic concentration levels, the so-called hot-spots.
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