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Bioaccumulation of atrazine and chlorpyrifos to Lumbriculus variegatus from lake sediments.

Abstract

The bioaccumulation of the pesticides chlorpyrifos and atrazine to the benthic oligochaeta Lumbriculus variegatus from four diverse artificially contaminated lake sediments (OC 0.13-21.5%) was studied in the laboratory. The steady state of bioaccumulation was not reached within 10d. Chlorpyrifos showed stronger bioaccumulation than the less lipophilic atrazine, the biota-sediment accumulation factors (BSAFs) being 6.2-99 for the former and 1.9-5.3 for the latter. While bioaccumulation factors (BAFs) dropped with increasing organic content of the sediments, the high level and considerable range of the obtained BSAFs indicate other sediment qualities, such as the age and characteristics of the organic material, having a strong effect on the bioavailability of these compounds. The slow and incomplete desorption of chlorpyrifos from the most inorganic sediment indicates also that this compound may be strongly bound to some type of inorganic material. Any specific influential sediment fraction or characteristic could not be identified.

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  • Authors+Show Affiliations

    ,

    Faculty of Biosciences, Laboratory of Aquatic Ecology and Ecotoxicology, University of Joensuu, Yliopistokatu 7, P.O. Box 111, 80101 Joensuu, Finland. paujantu@cc.joensuu.fi

    , ,

    Source

    MeSH

    Animals
    Atrazine
    Biota
    Chlorpyrifos
    Environmental Monitoring
    Fresh Water
    Geologic Sediments
    Insecticides
    Oligochaeta
    Water Pollutants, Chemical

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    18353437

    Citation

    TY - JOUR T1 - Bioaccumulation of atrazine and chlorpyrifos to Lumbriculus variegatus from lake sediments. AU - Jantunen,A P K, AU - Tuikka,A, AU - Akkanen,J, AU - Kukkonen,J V K, Y1 - 2008/03/18/ PY - 2007/9/5/received PY - 2008/1/10/revised PY - 2008/1/19/accepted PY - 2008/3/18/aheadofprint PY - 2008/3/21/pubmed PY - 2011/7/16/medline PY - 2008/3/21/entrez SP - 860 EP - 8 JF - Ecotoxicology and environmental safety JO - Ecotoxicol. Environ. Saf. VL - 71 IS - 3 N2 - The bioaccumulation of the pesticides chlorpyrifos and atrazine to the benthic oligochaeta Lumbriculus variegatus from four diverse artificially contaminated lake sediments (OC 0.13-21.5%) was studied in the laboratory. The steady state of bioaccumulation was not reached within 10d. Chlorpyrifos showed stronger bioaccumulation than the less lipophilic atrazine, the biota-sediment accumulation factors (BSAFs) being 6.2-99 for the former and 1.9-5.3 for the latter. While bioaccumulation factors (BAFs) dropped with increasing organic content of the sediments, the high level and considerable range of the obtained BSAFs indicate other sediment qualities, such as the age and characteristics of the organic material, having a strong effect on the bioavailability of these compounds. The slow and incomplete desorption of chlorpyrifos from the most inorganic sediment indicates also that this compound may be strongly bound to some type of inorganic material. Any specific influential sediment fraction or characteristic could not be identified. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/18353437/Bioaccumulation_of_atrazine_and_chlorpyrifos_to_Lumbriculus_variegatus_from_lake_sediments_ L2 - http://linkinghub.elsevier.com/retrieve/pii/S0147-6513(08)00020-1 ER -