| Main Title |
Source resolution of polycyclic aromatic hydrocarbons in the Los Angeles atmosphere : application of a chemical species balance method with first order chemical decay / |
| Author |
Duval, Marc Maurice. ;
Friedlander, S. K.
|
| Other Authors |
|
| CORP Author |
California Univ., Los Angeles. Dept. of Chemical, Nuclear, and Thermal Engineering.;Environmental Sciences Research Lab., Research Triangle Park, NC. |
| Publisher |
U.S. Environmental Protection Agency, Research and Development, Environmental Sciences Research Laboratory ; National Technical Information Service, |
| Year Published |
1981 |
| Report Number |
EPA-600/2-81-161; EPA-R-806404 |
| Stock Number |
PB82-121336 |
| OCLC Number |
15081550 |
| Subjects |
Hydrocarbons ;
Aerosols ;
Air--Pollution--California--Los Angeles
|
| Additional Subjects |
Air pollution ;
Aromatic polycyclic hydrocarbons ;
Aerosols ;
Industrial wastes ;
Combustion products ;
Exhaust emissions ;
Refineries ;
Sources ;
Sites ;
Los Angeles(California) ;
Chemical element balance method ;
Benzopyrenes ;
Coronene ;
Numerical solution
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ESAD |
EPA 600-2-81-161 |
|
Region 10 Library/Seattle,WA |
03/21/2011 |
| NTIS |
PB82-121336 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
54 p. ; 28 cm. |
| Abstract |
The chemical mass balance method which was originally developed for source resolution of chemical elements was extended in this study to chemically reactive compounds in atmospheric aerosols. The basic theoretical equation was reformulated to incorporate atmospheric decay factors for reactive species. The method was tested with selected polycyclic aromatic hydrocarbons (PAH) using source emission data and atmospheric concentrations reported in the literature. Absolute atmospheric concentrations of coronene, benzo(a)pyrene, benzo(e)pyrene, benzo(ghi)pyrene, and anthanthrene measured at 13 sites in the Los Angeles basin were apportioned between automobile and refinery emission sources. Refinery emission patterns of PAH in the Los Angeles basin were computed from an analysis of auto emissions data and ambient data from a refinery area. Rates of atmospheric degradation of the PAH were calculated from an analysis of auto emission and ambient air data. Literature reports on major emissions of PAH from combustion sources were reviewed and evaluated. |
| Notes |
Includes bibliographical references (p. 46-51). "Sep. 1981." |
