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RECORD NUMBER: 49 OF 435

OLS Field Name OLS Field Data
Main Title Application of Fine Scale Air Toxics Modeling with CMAQ (Community Multiscale Air Quality) to HAPEM5 (Hazardous Air Pollutant Exposure Model 5).
Author Ching, J. ; Pierce, T. ; Palma, T. ; Hutzell, W. ; Tang, R. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Publisher 2004
Year Published 2004
Report Number EPA/600/A-04/103 ;NERL-RTP-AMD-04-074;
Stock Number PB2005-100838
Additional Subjects Air quality ; Toxic substances ; Air pollution monitoring ; Particulates ; Models ; Air pollution sources ; Photochemistry ; Concentrations ; Urban areas ; Environmental transport ; Human exposure ; Risk assessment ; Public health ; Computerized simulation ; CMAQ modeling system ; Community Multiscale Air Quality(CMAQ) ; Hazardous Air Pollutant Exposure Model(HAPEM)
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB2005-100838 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 05/03/2005
Collation one CD-ROM contains 4 page document
Abstract
The USEPA is developing the capability to link air toxics (AT) concentrations from an advanced photochemical grid model to the HAPEM (Hazardous Air Pollutant Exposure Model). The basis for AT modeling is the Community Multiscale Air Quality (CMAQ) modeling system, a one-atmosphere chemical transport model. Because the AT model must simulate the spatial distribution of toxic hot spots across an urban area, the CMAQ system needs to account for specific toxic compounds at a fine-scale grid resolution. This paper provides a preliminary demonstration towards applying the EPA neighborhood scale modeling paradigm for air toxics using CMAQ to the EPA advanced exposure model HAPEM5. For the HAPEM, the Version 5 replaces a previous version to be able to broaden the potential exposure to both temporal and spatial (sub-grid) variabilities in pollutant concentration.