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 |
|
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 |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
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 ARCHIVE |
EPA-650-2-75-025 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
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 |
Abstract |
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. |
Notes |
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. |