Temporal Trend Studies on Tetra- and Pentabrominated Diphenyl Ethers and Hexabromocyclododecane in Guillemot Egg from the Baltic Sea

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• 作者：Ulla Sellströ ; m ; Anders Bignert ; Amelie Kierkegaard ; Lisbeth Hä ; ggberg ; Cynthia A. de Wit ; Mats Olsson ; and Bo Jansson
• 刊名：Environmental Science & Technology
• 出版年：2003
• 出版时间：December 15, 2003
• 年：2003
• 卷：37
• 期：24
• 页码：5496 - 5501
• 全文大小：79K
• 年卷期：v.37,no.24(December 15, 2003)
• ISSN：1520-5851

文摘

Guillemot eggs from the Baltic Sea, sampled between1969 and 2001, were analyzed for tetra- and pentabromodiphenyl ethers (2,2',4,4'-tetraBDE (BDE-47), 2,2',4,4',5-pentaBDE (BDE-99), and 2,2',4,4',6-pentaBDE (BDE-100)),and hexabromocyclododecane (HBCD). This temporal trendstudy indicates that the concentrations of the polybrominateddiphenyl ether compounds increased from the 1970s tothe 1980s, peaking around the mid- to the late-1980s. Thesepeaks are then followed by a rapid decrease in concentrations during the rest of the study period, with theconcentrations of the major BDE congener below 100ng/g lipid weight at the end of the period. This correspondsto less than 10% of its peak values. The concentrationsof HBCD show a different pattern over time. After a peakin the middle of the 1970s followed by a decrease, theconcentrations increased during the latter part of the 1980s.During the recent 10-yr period no significant change hasoccurred, and the annual mean concentrations are more orless stable at a higher level as compared to the beginningof the study period.