PCB AND DDTS IN BLUBBER OF CETACEANS FROM THE NORTHEASTERN NORTH-ATLANTIC
PCB AND DDTS IN BLUBBER OF CETACEANS FROM THE NORTHEASTERN NORTH-ATLANTIC
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DOI：
10.1016/0025-326x(93)90125-4
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发表时间：
1993-03-01
影响因子：
5.8
通讯作者：
BORRELL, A
中科院分区：
文献类型：
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作者：
BORRELL, A
对法罗群岛捕获的长鳍领航鲸、大西洋白海豚和港湾鼠海豚以及冰岛长须鲸、塞鲸和抹香鲸的鲸脂进行了有机氯污染物分析。污染物水平与营养水平的增加呈正相关，与体型呈负相关。对于任何给定物种，%DDE/SIGMAp,p'-DDT 比率随着 SIGMAp,p'-DDT 负荷的增加而增加，可能反映了污染物浓度较高时肝酶的解毒活性增加。 %SIGMAp,p'-DDT/PCB 比率随着营养级的增加而降低，表明两个有机氯组通过食物网的转移率存在差异。由于有机氯通过妊娠和哺乳期转移的影响，男性的SIGMAp,p'-DDT和PCB水平、%DDE/SIGMAp,p'-DDT和%SIGMAp,p'-DDT/PCB比率高于女性。
Blubber from long-finned pilot whales, Atlantic white-sided dolphins and harbour porpoises caught off the Faroe Islands, and from fin whales, sei whales, and sperm whales from Iceland were analysed for organochlorine pollutants. Pollutant levels were positively correlated with increasing trophic level and inversely with body size. For any given species, the %DDE/SIGMAp,p'-DDT ratio increased with SIGMAp,p'-DDT burden, probably reflecting increased detoxification activity of liver enzymes at higher contaminant concentrations. The %SIGMAp,p'-DDT/PCB ratio decreased with increasing trophic level suggesting differential transfer rates of the two organochlorine groups through food webs. Because of the effect of transfer of organochlorines through gestation and lactation, SIGMAp,p'-DDT and PCB levels, %DDE/SIGMAp,p'-DDT and %SIGMAp,p'-DDT/PCB ratios were higher in males than in females.