Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Mutagenic Activities of Wood Smoke Photooxidation Products.
Author Kleindienst, T. E. ; Shepson, P. B. ; Edney, E. O. ;
CORP Author Northrop Services, Inc., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1986
Report Number EPA-68-02-4033; EPA/600/3-86/049;
Stock Number PB86-239837
Additional Subjects Smoke ; Photooxidation ; Combustion products ; Nitrogen oxides ; Irradiation ; Bacteria ; Bioassay ; Mutagenesis ; Air pollution effects
Library Call Number Additional Info Location Last
NTIS  PB86-239837 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 54p
Irradiations of diluted wood smoke were conducted to assess the nature of the changes which are likely to occur to such a complex mixture in the atmosphere. The photochemical simulations were conducted for two distinctive chemical conditions: (1) diluted wood smoke alone, and (2) diluted wood smoke with nitrogen oxides (NOx) added to bring the hydrocarbon to NOx ratio more in line with that observed in populated areas. In all simulations, changes in chemistry and mutagenic activity were measured for both the gas-phase and aerosol-bound species. When diluted wood smoke alone was irradiated, the reaction proceeded quickly, but the extent of reaction was severely limited by the lack of NOx. Nevertheless, the mutagenic activity of the vapor phase materials increased measurably. For the experiments with added NOx, the photooxidation process was more complete, and a comparison of the mutagenic potential of the aerosol-bound chemicals with the gas phase products was possible.