OLS : Record


Main Title Air quality models pertaining to particulate matter /
Publisher Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Place Published Research Triangle Park, NC
Year Published 1984
Report Number EPA 600-3-84-074
Stock Number PB84-210939
OCLC Number 785398130
Subjects Air pollution; Mathematical models; Particles; Urban areas; Performance evaluation; Aerosols; Deposition; Gravitation; Sources; Sulfur dioxide; Sulfates; Air quality; Particle episodic models; Atmospheric dispersion
Subject Added Ent Air--Pollution--United States.
Internet Access
Description Access URL
Library   Call Number Additional Info Location Date Modified
EJBD ARCHIVE EPA 600-3-84-074 Headquarters Library/Washington,DC 04/16/2012
NTIS PB84-210939 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation vii, 73 p. : ill., maps ; 28 cm.
Abstract This report describes an evaluation of the Particle Episodic Model (PEM), an urban scale dispersion model which incorporates deposition, gravitational settling and linear transformation processes into the predecessor model, the Texas Episodic Model (TEM-8). A sensitivity analysis of the model was performed, which included the effects of deposition, gravitational settling and receptor grid size. Recommendations are made to improve the performance and flexibility of the model. PEM was applied to a source inventory of the Philadelphia area to provide a preliminary estimate of source apportionment. PEM modeling employed both hypothetical and actual meteorology. Results indicate that area source emissions dominate TSP, SO2 and sulfate concentrations at urban receptors. A large fraction of the inhalable particles may arrive from distant sources. This report also contains an overview of receptor models (RMs) used for the source apportionment of aerosols. Some diagnostic procedures for RMs are evaluated using a synthetic data set. Described are RM trade-offs and protocols and possible hybrid dispersion/receptor models. Issues regarding the inter-comparison of source apportionments from receptor and dispersion models are highlighted with reference to the 1982 Philadelphia study.
Notes "April 1984"--Cover. Includes bibliographical references. "Cooperative agreement number 809229-01." "Project officer, Jack H. Shreffler."
Author Added Ent
Batterman, S. A.;
Shreffler, Jack H.
Corporate Au Added Ent Environmental Sciences Research Laboratory.
NTIS Title Notes Final rept. Apr-Oct 83.
PUB Date Free Form Jun 84
Category Codes 13B; 68A#; 91A#
NTIS Prices PC A05/MF A01
Primary Description 600/09
BIB Level m
Control Number 425826001
OCLC Time Stamp 20120411112917
Cataloging Source OCLC/T
Language eng
Origin OCLC
OCLC Rec Leader 01134nam 2200301Ka 45020