Record Display for the EPA National Library Catalog


Main Title Methodology for assignment of a hydrocarbon photochemical reactivity index for emissions from mobile sources /
Author Black, Francis M. ; High, Larry E. ; Sigsby., John E.
Other Authors
Author Title of a Work
Black, Francis M.
High, Larry E.
Sigsby, John E.
CORP Author National Environmental Research Center, Research Triangle Park, N.C.
Publisher National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1975
Report Number PB240721; EPA-650/2-75-025; EPA-ROAP-26ACV
Stock Number PB240721
OCLC Number 55704630
Subjects Automobiles--Motors--Exhaust gas ; Air--Pollution--United States--Measurement ; Vehicle Emissions ; Air--Pollution--Measurement
Additional Subjects Hydrocarbons ; Exhaust gases ; Chemical reactivity ; Photochemical reactions ; Gas chromatography ; Atmospheric chemistry ; Air pollution ; Evaluation
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EIAD  EPA-650/2-75-025 Region 2 Library/New York,NY 04/21/2006 DISPERSAL
EJBD ARCHIVE EPA-650-2-75-025 Headquarters Library/Washington,DC 06/27/2014
EJBD  EPA-650-2-75-025 Headquarters Library/Washington,DC 06/27/2014
EKBD  EPA-650/2-75-025 Research Triangle Park Library/RTP, NC 04/04/2016
ELBD  EPA 650-2-75-025 AWBERC Library/Cincinnati,OH 11/08/2022
NTIS  PB-240 721 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iv, 23 pages : illustrations ; 28 cm
An analytical scheme is presented which permits assessment of the photochemical significance of light-duty mobile source hydrocarbon emissions. The scheme incorportates both the mass and atmospheric reactivity of the hydrocarbon emissions. Analytical procedures supplementary to those defined for light-duty mobile source certification in the Federal Register are defined. The analytical procedures permit definition of four basic reactivity classes of hydrocarbons: Class I, nonreactive, including methane, ethane, acetylene, propane, and benzene; Class II, reactive, including the C4 and higher paraffins; Class III, reactive, including the aromatics except benzene; and Class IV, reactive, including the olefins. Gas chromatographic analysis of Class I hydrocarbons is described in detail.
Prepared for the U.S. Environmental Protection Agency "March 1975." "EPA-650/2-75-025." Chemistry and Physics Laboratory. Also distributed by National Technical Information Service (NTIS) as PB240721.