Acetyldehyde: the mutagenic activity of its photoxidation products
The authors exposed Salmonella typhimurium strain TA100 to the gas-phase products of the photooxidation of acetyldehyde by using the effluent from a flow-mode smog chamber. The total mutagenic activity of the photooxidation products under simulated atmospheric reaction conditions was measured. Significant mutagenic activity was observed when the reaction time was long and considerable concentrations of ozone and organic peroxy-type products were present and when the reaction time was short and the major products were formaldehyde and peroxyacetyl nitrate (PAN). The photoxidation of acetaldehyde is shown to account for a significant fraction of the mutagenic activity observed from the photooxidation of propylene. It was found that most of the observed response can be accounted for by the presence of PAN in the reaction chamber. The apparent mutagenic activity of PAN in the reaction chamber. The apparent mutagenic activity of PAN in these experiments was found to be considerably larger than in previous laboratory measurements. 12 references, 4 tables, 2 tables.
- Research Organization:
- Northrop Services Inc., Research Triangle Park, NC
- OSTI ID:
- 7248374
- Journal Information:
- Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 20:10; ISSN ESTHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETALDEHYDE
ALDEHYDES
ATMOSPHERIC CHEMISTRY
BACTERIA
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
DATA
ESTERS
EXPERIMENTAL DATA
FORMALDEHYDE
INFORMATION
MICROORGANISMS
MUTAGENESIS
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PEROXYACETYL NITRATE
PHOTOCHEMICAL OXIDANTS
PHOTOCHEMICAL REACTIONS
SALMONELLA
SALMONELLA TYPHIMURIUM
YIELDS