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Brominated dibenzo-p-dioxins: A new class of marine toxins?
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2007 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 41, no 9, 3069-3074 p.Article in journal (Refereed) Published
Abstract [en]

Levels of polybrominated dibenzo-p-dioxins (PBDDs) were measured in marine fish, mussels, and shellfish. PBDDs were nondetectable in samples from freshwater environments, and their levels were successively higher in samples from the marine environments of the Bothnian Bay and Bothnian Sea, the West Coast of Sweden, and the Baltic Proper. In Baltic Proper littoral fish the levels of PBDDs generally exceeded those of their chlorinated analogues (PCDDs). This is alarming as some Baltic fish species already are contaminated by chlorinated dioxins to such an extent that they cannot be sold on the European market. By comparing spatial trends in PBDD and PCDD distributions, and PBDD patterns in fish, mussels, and algae, we show that the PBDDs are probably produced naturally, and we propose a route for their biosynthesis. We further show that the levels of PBDDs are high (ng/g wet weight) in mussels, and that the levels increase over time. Finally, we discuss the possibility that the PBDDs have adverse biological effects, and that the levels are increasing as a result of global warming and eutrophication.

Place, publisher, year, edition, pages
2007. Vol. 41, no 9, 3069-3074 p.
Keyword [en]
Environmental science
National Category
Environmental Sciences
URN: urn:nbn:se:su:diva-11081DOI: 10.1021/es0624725OAI: diva2:177600
Available from: 2008-01-09 Created: 2008-01-09 Last updated: 2011-01-18Bibliographically approved

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Malmvärn, AnnaAsplund, Lillemor
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