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Main Title

Guideline on Air Quality Models (Revised). Supplement A.

CORP Author

Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.

Year Published

1987

Report Number

EPA/450/2-78/027R-SUPPL-A;

Stock Number

PB88-150958

Additional Subjects

Air pollution ; Mathematical models ; Atmospheric models ; Atmospheric diffusion ; Guidelines ; Ozone ; Carbon monoxide ; Nitrogen dioxide ; Air quality ; Gaussian plume models ; Diffusion modeling ; Clean Air Act

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
NTIS	PB88-150958	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

35p

Abstract

The guideline recommends air quality modeling techniques that may be applied to air pollution control strategy evaluations and new source reviews, including prevention of significant deterioration. It is intended for use by EPA Regional Offices in judging the adequacy of modeling analyses performed by EPA, by State and local agencies, and by industry and its consultants. It also identifies modeling techniques and data bases that EPA considers acceptable. The guideline makes specific recommendations concerning air quality models, data bases, and general requirements for concentration estimates. This is Supplement A to the guideline. It contains: (1) addition of a specific version of the Rough Terrain Diffusion Model (RTDM) as a screening model; (2) modification of the downwash algorithm in the Industrial Source Complex (ISC) model; (3) addition of the Offshore and Coastal Dispersion (OCD) model to Appendix A; and, (4) addition of the AVACTA II model to Appendix B.

Supplementary Notes