Earthworm contamination by PCBs and heavy metals |
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| Authors: | P. Diercxsens D. de Weck N. Borsinger B. Rosset J. Tarradellas |
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| Affiliation: | Institut du Gēnie de l''Environment EPFL-Ecublens, 1015 Lausanne Switzerland |
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| Abstract: | A comparison is made of soil and earthworm contamination by PCBs and heavy metals between a nature reserve and two sites conditioned by the addition of sewage sludge and compost.The tissues and gut content of the earthworms shows a higher PCB concentration than that of the surrounding soil and also a difference in the fingerprint of some single PCB compounds.Earthworms display a selective accumulation of cadmium and zinc in their tissues and gut content. |
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