Extractable organohalogens in tissues of beluga whales from the Canadian arctic and the St. Lawrence estuary

被引：30
作者：
Kiceniuk, JW
Holzbecher, J
Chatt, A
机构：
[1] Fisheries & Oceans Canada, NW Atlantic Fisheries Ctr, St Johns, NF A1C 5X1, Canada
[2] Dalhousie Univ, Dept Chem, Halifax, NS B3H 4J3, Canada
来源：
ENVIRONMENTAL POLLUTION | 1997年 / 97卷 / 03期
关键词：
beluga whale; EOCl; EOBr; organochlorines; Arctic;
D O I：
10.1016/S0269-7491(97)00100-0
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Samples of blubber, brain, kidney, liver, and muscle of individual beluga whales were extracted and analyzed for extractable organic Cl (EOCl), Br (EOBr), and I (EOI) by neutron activation analysis. The highest levels of EOCl (554 mu g g(-1) lipid) were found in the kidney of Arctic beluga and the lowest (24 mu g g(-1) lipid) in the blubber. Levels in brain and liver lipids were on average of equal magnitude. The unequal distribution of EOCl in tissue lipids is in marked contrast to the equal distribution, in lipid, demonstrated for organochlorines such as DDTs and PCBs by a number of investigations. The distribution of brominated (EOBr) and iodinated (EOI) compounds was similar and markedly different from that of EOCl. The tissue distribution of EOCl seems to be related to the proportion to polar lipids in the tissues. Beluga from St. Lawrence had significantly higher brain EOCl levels than the Arctic samples whereas the levels of EOCl in liver and kidney were higher in the Arctic whales. (C) 1997 Elsevier Science Ltd.
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收藏
页码：205 / 211
页数：7
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