| Main Title |
Analysis of atmospheric organic aerosols by mass spectroscopy / |
| Author |
Crittenden., Alden L.
|
| Other Authors |
|
| CORP Author |
Washington Univ., Seattle. Dept. of Chemistry.;Environmental Sciences Research Lab., Research Triangle Park, N.C. |
| Publisher |
Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1976 |
| Report Number |
PB258822; EPA-600/3-76-093; EPA-R-801119 |
| Stock Number |
PB-258 822 |
| OCLC Number |
52451953 |
| Subjects |
Mass spectrometry ;
Aerosols ;
Photochemical smog
|
| Additional Subjects |
Aerosols ;
Mass spectroscopy ;
Smog ;
Particles ;
Chemical analysis ;
Test chambers ;
Ions ;
Air pollution ;
Accuracy ;
Sampling ;
Sites ;
Measuring instruments ;
Concentration(Composition) ;
Diurnal variations ;
Urban areas ;
Nitrites ;
Terpene hydrocarbons ;
Air pollution sampling ;
Procedures
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-3-76-093 |
c.1 |
Headquarters Library/Washington,DC |
03/18/2014 |
| EKBD |
EPA-600/3-76-093 |
|
Research Triangle Park Library/RTP, NC |
07/11/2003 |
| ELBD ARCHIVE |
EPA 600-3-76-093 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 600-3-76-093 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-258 822 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
287 p. : ill. ; 28 cm. |
| Abstract |
High resolution mass spectroscopy has been found to be a useful means of characterizing the organic fraction of urban aerosols. Quantitative accuracy, however, was limited, particularly for compounds of low abundance. Some ambiguities were found in the assignment of origins of ions formed in the mass spectrometer. Compounds that were detected included phenols; aromatic carboxylic acids and, possibly, esters of these; and aliphatic dibasic acids. Evidence was found of several other difunctional compounds, including nitrate or nitrite species. Strong evidence was found for the presence in some urban aerosols of compounds reported by others as products of the oxidation of toluene in smog chamber reactions. Less evidence was found for products formed by the oxidation of terpenes. A few samples of automobile exhaust particulates were analyzed. The occurrence of benzoic acid and the benzoyl ion in mass spectra appear to be possible indicators of automotive contribution to the organic components. Results for a large number of compounds are provided for 88 samples of aerosols collected at sites located in the greater Los Angeles, Seattle, St. Louis, and Denver areas. |
| Notes |
"EPA-600/3-76-093." "August 1976." "Project Officer: Ronald K. Patterson." PB 258 822--NTIS. |
