Physical factors affecting the mutagenicity of fly ash from a coal-fired power plant

Journal Article · Fri May 25 04:00:00 EDT 1979 · Science; (United States)

DOI:https://doi.org/10.1126/science.375394· OSTI ID:5606666

Fisher, G L; Chrisp, C E; Raabe, O G

The two finest, most respirable coal fly ash fractions collected from the smokestack of a power plant were more mutagenic than two coarser fractions. Mutagenicity was evaluated in the histidine-requiring bacterial strains TA 1538, TA 98, and TA 100 of Salmonella typhimurium. Ash samples collected from the hoppers of an electrostatic precipitator in the plant were not mutagenic. The mutagens in coal fly ash were resistant to x-ray or ultraviolet irradiation, possibly as a result of stabilization by fly ash surfaces. All mutagenic activity is lost with heating to 350/sup 0/C.

• Research Organization: Univ. of California, Davis
• OSTI ID: 5606666
• Journal Information: Science; (United States), Journal Name: Science; (United States) Vol. 204; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
016000 -- Coal
Lignite
& Peat-- Health & Safety
550700 -- Microbiology
560302* -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AEROSOL WASTES
AIR POLLUTION
AMINO ACIDS
AZOLES
BACTERIA
BIOLOGICAL EFFECTS
CARBOXYLIC ACIDS
ELECTROMAGNETIC RADIATION
ELECTROSTATIC PRECIPITATORS
EQUIPMENT
FLY ASH
FOSSIL-FUEL POWER PLANTS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HISTIDINE
IMIDAZOLES
IONIZING RADIATIONS
MICROORGANISMS
MUTAGENESIS
MUTAGENS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTICLE SIZE
POLLUTION
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
RADIATIONS
RESPONSE MODIFYING FACTORS
SALMONELLA
SALMONELLA TYPHIMURIUM
SIZE
STAINS
TEMPERATURE DEPENDENCE
THERMAL POWER PLANTS
ULTRAVIOLET RADIATION
WASTES
X RADIATION