Record Display for the EPA National Library Catalog


Main Title RAM. EPA/ORD (Environmental Protection Agency/Office of Research and Development) Air Quality Simulation Model.
Author Mersch, J. ;
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC. Meteorology and Assessment Div.
Publisher 1 Aug 89
Year Published 1989
Report Number EPA/SW/DK-89/151;
Stock Number PB90-500315
Additional Subjects Models-simulations ; Air pollution ; Meteorological data ; Air quality ; Algorithms ; Software ; Diskettes ; Atmospheric diffusion ; Concentration(Composition) ;
Library Call Number Additional Info Location Last
NTIS  PB90-500315 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 diskette
Gaussian-plume multiple-source air quality algorithm. RAM, a short-term Gaussian steady-state algorithm estimates concentrations of stable pollutants from urban point and area sources. Hourly meteorological data are used. Hourly concentrations and averages over a number of hours can be estimated. Briggs plume rise is used. Pasquill-Gifford dispersion equations with dispersion parameters thought to be valid for urban areas are used. Concentrations from area sources are determined using the method of Hanna, that is, sources directly upwind are considered representative of area source emissions affecting the receptor. Special features include determination of locations of uniformly spaced receptors to ensure good area coverage with a minimum number of receptors.