| Main Title |
Reactivity of polynuclear aromatic hydrocarbons with O2 and NO in the presence of light / |
| Author |
Geacintov, Nicholas E.
|
| Other Authors |
|
| CORP Author |
New York Univ., N.Y. Dept. of Chemistry.;National Environmental Research Center, Research Triangle Park, N.C. |
| Publisher |
Office of Research and Development, U.S. Environmental Protection Agency ; Available from National Technical Information Service, |
| Year Published |
1973 |
| Report Number |
EPA/650-1-74-010; EPA-R-801393 |
| Stock Number |
PB-238294 |
| OCLC Number |
37663845 |
| Subjects |
Polycyclic aromatic hydrocarbons--Research ;
Air--Pollution--Research
|
| Additional Subjects |
Aromatic polycyclic hydrocarbons ;
Nitrogen oxide(NO) ;
Oxygen ;
Chemical reactivity ;
Adsorption ;
Excitation ;
Photochemical reactions ;
Molecular energy levels ;
Air pollution ;
Deuterium compounds ;
Quenching(Inhibition) ;
Electronic states ;
Surface chemistry ;
Atmospheric chemistry
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 650-1-74-010 |
c.1 |
Headquarters Library/Washington,DC |
05/27/2014 |
| EKBD |
EPA-650/1-74-010 |
|
Research Triangle Park Library/RTP, NC |
08/19/2016 |
| ELBD ARCHIVE |
EPA 650-1-74-010 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 650-1-74-010 |
repository copy |
AWBERC Library/Cincinnati,OH |
08/01/2017 |
| NTIS |
PB-238 294 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
iv, 31 pages : illustrations ; 28 cm. |
| Abstract |
The reactivity of 20 different aromatic hydrocarbons adsorbed on solid polystyrene fluffs with oxygen and nitric oxide in the presence of light has been studied. The reaction conditions simulated those encountered in polluted atmospheres. Among the compounds studied were anthracene, pyrene, naphthalene, chrysene, benz(a)anthracene and coronene. The photoexcited triplet and singlet states of the aromatic hydrocarbons react predominantly via the quenching of the fluorescence and phosphorescence by the paramagnetic O2 and NO gases. The probability of quenching per collisional encounter and the formation of singlet oxygen depends on spin selection rules, the triplet energy, and the electron density (in the case of the monomethyl derivatives of benz(a)anthracene). NO quenching of the triplets appears to be a charge-transfer process for molecules with a high triplet energy. The most important contribution of the photoexcited aromatic hydrocarbons (per photon absorbed) to the photochemistry of atmospheres containing O2 and NO appears to be the generation of singlet oxygen, since photochemical degradation of the compounds studied was negligible compared to quenching. |
| Notes |
Performed by Chemistry Department, New York University. Sponsored by Human Studies Laboratory, National Environmental Research Center. Prepared for Office of Research and Development, U.S. Environmental Protection Agency. "December 1973." "EPA/650-1-74-010." EPA Project Officer: David L. Coffin. Includes bibliographical references. |
| Place Published |
Washington, D.C. Springfield, Va. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Development.; National Environmental Research Center (Research Triangle Park, N.C.). Human Studies Laboratory.; New York University. Department of Chemistry. |
| Title Ser Add Ent |
Research reporting series. Environmental health effects research. |
| PUB Date Free Form |
1973 |
| Series Title Traced |
Research reporting series Environmental health effects research |
| Series Title Untraced |
Research reporting series. 1, Environmental health effects research |
| NTIS Prices |
PC A03/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20170719074128 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02532cam 2200529Ka 45010 |
