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Main Title Application of the empirical kinetic modeling approach to urban areas /
Author Whitten, G. Z. ; Hogo, H. ; Johnson, R. G.
Other Authors
Author Title of a Work
Hogo, H.
Johnson, R. G.
CORP Author Systems Applications, Inc., San Rafael, CA.;Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
Publisher Environmental Protection Agency, Office of Air Quality Planning and Standards ; National Technical Information Service, distributor,
Year Published 1981
Report Number EPA-450/4-81-005 a-c; EPA-450/4-81-005b; EPA-450/4-81-005c; SAI-32R-EF80-139; EPA-68-02-3376
Stock Number PB81-194169
OCLC Number 10082949
Subjects Ozone ; Air--Pollution--California ; Air--Pollution--Oklahoma--Tulsa ; Air--Pollution--Pennsylvania--Philadelphia
Additional Subjects Air pollution ; Mathematical models ; Ozone ; Nomographs ; Urban areas ; California ; Hydrocarbons ; Nitrogen oxides ; Propylene ; Butanes ; EKMA models ; San Francisco(California) ; Sacramento(California) ; Emission factors
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EIAD  EPA-450/4-81-005a,b Region 2 Library/New York,NY 05/23/2003 DISPERSAL
EJAD  EPA 450/4-81-005c Region 3 Library/Philadelphia, PA 11/14/2019
EJBD ARCHIVE EPA-450/4-81-005a Headquarters Library/Washington,DC 11/05/2013
EJBD ARCHIVE EPA 450-4-81-005b Headquarters Library/Washington,DC 10/07/2009
EJBD ARCHIVE EPA 450-4-81-005c Headquarters Library/Washington,DC 04/14/2014
EKBD  EPA-450/4-81-005a Research Triangle Park Library/RTP, NC 08/27/1999
EKBD  EPA-450/4-81-005b Research Triangle Park Library/RTP, NC 08/27/1999
EKBD  EPA-450/4-81-005c Research Triangle Park Library/RTP, NC 08/27/1999
ERAD  EPA 450/4-81-005a Region 9 Library/San Francisco,CA 09/09/2013
ESAD  EPA 450-4-81-005A Region 10 Library/Seattle,WA 03/23/2010
ESAD  EPA 450-4-81-005B Region 10 Library/Seattle,WA 03/23/2010
ESAD  EPA 450-4-81-005C Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB81-194169 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation v. : ill., maps ; 28 cm.
The EKMA was evaluated by comparison with more complex models using common data bases for the San Francisco and Sacramento areas. The basic model used in the EKMA is a simple, moving-air-parcel, or trajectory, model that uses a detailed chemical mechanism for the surrogate propylene and butane hydrocarbons. Time-dependent, precursor-emission factors can be treated, along with expansion of the air parcel, but entrainment is treated by assuming that constant concentrations exist outside the parcel. This basic model is used to generate ozone isopleth diagrams for estimating ozone response to hydrocarbon and nitrogen oxide controls. The comparison study involved several levels of the EKMA system, from parts of the basic model to control strategy predictions. For the San Francisco area, the EKMA was compared with the LIRAQ model, which had been used for the 1979 AQMP. For the Sacramento area, the EKMA was compared with the SAI Airshed Model. When carefully applied, the EKMA produced results that typically agreed with the more complex models. However, the evaluation confirmed that care must be exercised in applying the model to situations involving wind shear, complex terrain features, and highly nonuniform emission densities, and that caution must be used in interpreting the results of model applications to situations involving these factors.
Distributed to depository libraries on microfiche. "Systems Applications, incorporated." "January 1981"--Vol. 1. "May 1981"--Vol. 2. "October 1985"--Vol. 3. Includes bibliographical references.
Contents Notes
v. 1. San Francisco/Sacramento / by G.Z. Whitten, H. Hugo and R.G. Johnson -- v. 2. Tulsa / by G/Z. Whitten and H. Hugo -- v. 3. Philadelphia / by Systems Applications, Inc.