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Long-term occupational exposure to DDT

M K Siddiqui, M C Saxena, U K Mishra

    International Archives of Occupational and Environmental Health
    |January 1, 1981
    PubMed
    Summary
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    Occupational exposure to DDT significantly elevates organochlorine pesticide levels in workers

    Area of Science:

    • Environmental Health
    • Toxicology
    • Occupational Medicine

    Background:

    • Organochlorine pesticides, including DDT, pose risks due to their persistence and bioaccumulation.
    • Occupational exposure in agricultural and public health sectors can lead to elevated body burdens.

    Purpose of the Study:

    • To quantify organochlorine pesticide levels in occupationally DDT-exposed workers.
    • To assess the health implications of elevated DDT levels and compare them to the general population.

    Main Methods:

    • Gas-liquid chromatography with an electron capture detector was used for pesticide analysis in blood serum.
    • Serum samples were collected from 20 occupationally DDT-exposed workers and a control group.

    Main Results:

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    • DDT-exposed workers showed significantly higher levels of BHC, p,p'-DDT, p,p'-DDD, and p,p'-DDE compared to controls.
    • Total DDT equivalent levels were approximately 10 times higher in exposed workers, exceeding the permitted 200 ppb.
    • Abnormal nerve conduction was observed in some DDT sprayers, and daily intake exceeded acceptable limits.

    Conclusions:

    • Occupational DDT exposure leads to substantial accumulation of organochlorine pesticides, surpassing safe levels.
    • Elevated DDT levels may be associated with neurological effects and altered BHC metabolism.
    • Findings highlight the need for stringent monitoring and control measures for occupational DDT exposure.