Measurement of mutagenics activities from the oxidation products of combustion sources: Wood smoke oxidation by NO sub 3 N sub 2 O sub 5

Conference · Thu Sep 01 04:00:00 EDT 1988 · Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA)

OSTI ID:7164602

Kleindienst, T E; Shepson, P B; Smith, D F; Nero, C M; Hudgens, E E ^[1]; Cupitt, L T; Claxton, L D ^[2]

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1. Northrop Services Inc., Research Triangle Park, NC (USA)
2. Environmental Protection Agency, Research Triangle Park, NC (USA)

Over the past few years mutagenic activity of wood smoke emissions and their oxidation products have been reported. Measurements have been made both for the gas and particulate phases. These studies have pointed to several important conclusions. The mutagenic activity from extracts of the particulate-phase matter can be strongly influenced by oxidation processes occurring in the dark. In the dark NO{sub 3} or N{sub 2}O{sub 5} reactions with wood smoke components have been shown to readily lead to the formation of mutagenic products using Salmonella typhimurium with strain TA 98. Photooxidation processes also lead to increases in mutagenic activity of the gas phase products for both TA100 and TA98. For mutagens formed by photooxidation, comparison of the mutagenic activity on a volume basis (mutagens/m3 of effluent) shows that 98% of the total mutagenic activity resides with the gas phase products for TA100 and the mutagenic activity partitions about equally between gas and particulate phases for TA 98. In the current work they have examined the partitioning of the mutagenic activity of the gas and particulate phase from the oxidation of wood smoke by NO{sub 3}/N{sub 2}O{sub 5} in the dark.

• OSTI ID: 7164602
• Report Number(s): CONF-8909232--
• Conference Information: Journal Name: Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA) Journal Volume: 28:2
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOLS
BACTERIA
CHALCOGENIDES
CHEMICAL REACTIONS
COLLOIDS
COMBUSTION
COMBUSTION PRODUCTS
DISPERSIONS
HYDROCARBONS
MICROORGANISMS
MUTAGEN SCREENING
MUTAGENESIS
NITRATES
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
RESIDUES
SALMONELLA
SALMONELLA TYPHIMURIUM
SCREENING
SMOKES
SOLS
THERMOCHEMICAL PROCESSES
WOOD