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Bioaccumulation of decamethylcyclopentasiloxane in perch in Swedish lakes
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2013 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 93, no 5, 789-793 p.Article in journal (Refereed) Published
Abstract [en]

Decamethylcyclopentasiloxane (D5), a high production volume chemical used in personal care products, enters the environment both via air and sewage treatment plant (STP) recipients. It has been found in fish, and there is concern that it may be a bioaccumulative substance. In this work D5 was analyzed in perch from six Swedish lakes that did not receive STP effluent, and in perch and sediment from six lakes that received STP effluent. In the lakes receiving the STP effluent, the D5 concentrations in sediment varied over three orders of magnitude and were correlated with the number of persons connected to the STP normalized to the surface area of the receiving body. In the lakes not receiving effluent, the D5 levels in perch were all below the LOQ while D5 was above the LOQ in almost all perch from lakes that received effluent. The D5 concentrations in perch and sediment from the lakes receiving STP effluent were correlated. This shows that STP effluent is a much more important source of D5 to aquatic ecosystems than atmospheric deposition, and that the risk of adverse effects of D5 on aquatic life will be greatest in small recipients receiving large amounts of STP effluent. The bioaccumulation of D5 was compared to that of PCB 180 on the basis of multimedia bioaccumulation factors (mmBAFs), which describe the fraction of the contaminant present in the whole aquatic environment (i.e. water and surface sediment) that is transferred to the fish. In four of the six lakes the mmBAF of D5 was >0.3 of the mmBAF of PCB 180. Given that PCB 180 is a known highly bioaccumulative chemical, this indicates that the bioaccumulation of D5 in perch is considerable.

Place, publisher, year, edition, pages
2013. Vol. 93, no 5, 789-793 p.
Keyword [en]
D5, Sediment, STP, Fish
National Category
Ecology Environmental Sciences
URN: urn:nbn:se:su:diva-96103DOI: 10.1016/j.chemosphere.2012.10.050ISI: 000325594700011OAI: diva2:664061


Funding agencies:

Unilever, Bedfordshire, UK

Available from: 2013-11-13 Created: 2013-11-11 Last updated: 2013-11-13Bibliographically approved

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Kierkegaard, Amelie
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