Genotoxicity of two polycyclic aromatic hydrocarbons declines as they age in soil

Journal Article · Tue Jun 01 00:00:00 EDT 1999 · Environmental Toxicology and Chemistry

DOI:https://doi.org/10.1002/etc.5620180610· OSTI ID:6482626

Alexander, R R; Alexander, M ^[1]

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1. Cornell Univ., Ithaca, NY (United States)

Rifampicin-resistant mutations were induced in Pseudomonas putida A11rUV growing in soil containing 9,10-dimethyl-1,2-benzanthracene and benzo[a]pyrene. Aging of the compounds for 7 d caused a marked decrease in the mutation rates, and the number of mutants was further reduced after 15 d of aging. Longer persistence of the compound in soil did not further diminish the number of mutants. Vigorous solvent extraction showed that the concentration of the compounds had not diminished with the marked decline in genotoxicity. The data demonstrate that genotoxicity of such compounds aged in soil declines with little or no loss of the compound.

• OSTI ID: 6482626
• Journal Information: Environmental Toxicology and Chemistry, Vol. 18:6; ISSN 0730-7268
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AGE DEPENDENCE
BENZANTHRACENE
BENZOPYRENE
BIOASSAY
BIOLOGICAL AVAILABILITY
GENETIC EFFECTS
PSEUDOMONAS
SOILS
AROMATICS
BACTERIA
BIOLOGICAL EFFECTS
CONDENSED AROMATICS
HYDROCARBONS
MICROORGANISMS
ORGANIC COMPOUNDS
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology