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Mutagenic activity in drinking water

N Gruener, M P Lockwood

    American Journal of Public Health
    |March 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Drinking water samples were mutagenic in cell cultures, with mutagenicity enhanced by a promoter chemical. Researchers identified promoting chemicals in the water, suggesting potential risks from drinking water exposure.

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    Area of Science:

    • Environmental Health
    • Toxicology
    • Cell Biology

    Background:

    • Drinking water safety is a public health concern.
    • Chemical contaminants in water can pose health risks.
    • Mammalian cell culture assays are used to detect mutagens.

    Purpose of the Study:

    • To assess the mutagenicity of drinking water samples.
    • To investigate the role of promoting chemicals in water mutagenicity.
    • To propose methods for estimating drinking water exposure risks.

    Main Methods:

    • Concentrating drinking water samples using freeze-drying.
    • Utilizing a mammalian tissue culture assay with Chinese hamster embryonic lung cells (V79).
    • Employing 12-O-tetradecanoyl-phorbol-13-acetate as a promoter and benzo(a)pyrene for pretreatment.

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    Main Results:

    • Concentrated drinking water samples demonstrated mutagenicity in V79 cells.
    • Mutagenicity was enhanced by the promoter 12-O-tetradecanoyl-phorbol-13-acetate.
    • Promoting chemicals were detected in the water, and benzo(a)pyrene-pretreated cells showed increased mutation frequency upon exposure.

    Conclusions:

    • Drinking water can contain mutagenic and promoting chemicals.
    • Exposure to drinking water may pose a mutagenic risk.
    • Further research is needed to develop risk assessment strategies for drinking water contaminants.