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An assessment of the bioaccumulation of estrone in Daphnia magna

Authors

  • Rachel L. Gomes,

    1. Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom
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  • Hannah E. Deacon,

    1. Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom
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  • Ka M. Lai,

    1. Department of Environmental Health, Harvard School of Public Health, 665 Huntington Avenue, Boston, Massachusetts 02115, USA
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  • Jason W. Birkett,

    1. Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom
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  • Mark D. Scrimshaw,

    1. Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom
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  • John N. Lester

    Corresponding author
    1. Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom
    • Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom
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Abstract

The bioaccumulation of estrone by Daphnia magna was determined. Direct uptake via the aqueous medium occurred within the first 16 h. A bioconcentration factor of 228 was established over all temporal periods. Ingestion via Chlorella vulgaris gave a partitioning factor of 24, which may approximate to a biomagnification factor assuming steady state conditions. These preliminary results indicate that the partitioning to Daphnia magna via the food source, C. vulgaris is less significant than bioconcentration.

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