来自爱尔兰海和爱琴海的鲸类动物体内多氯联苯（PCBs）的甲基砜代谢物。

Methyl sulphone metabolites of polychlorinated biphenyls (PCBs) in cetaceans from the Irish and the Aegean Seas.

作者信息

Troisi G M, Haraguchi K, Simmonds M P, Mason C F

机构信息

Department of Biological and Chemical Sciences, The University of Essex, Colchester, CO4 3SQ, Essex, United Kingdom.

出版信息

Arch Environ Contam Toxicol. 1998 Jul;35(1):121-8. doi: 10.1007/s002449900358.

DOI:10.1007/s002449900358

PMID:9601929

Abstract

The levels of PCBs and PCB methyl sulphone metabolites were determined in the blubber of six species of cetaceans that originated from the Irish Sea and the Aegean Sea (Mediterranean). Burdens ranging from 2.80 to 27.80 microg g-1 (lipid weight) total PCBs and 0.03 to 0.58 microg g-1 (lipid weight) total methyl sulphones were recorded. The highest cetacean methyl sulphone burden (0.58 microg g-1) was in an Irish Sea harbor porpoise (Phocoena phocoena). Methyl sulphone isomer formation capacity, as determined by PCB:MSF ratios, varied considerably between species as follows: harbour porpoise (1:10) > pilot whale (Globicephalus melas), white-sided dolphin (Lagenorhyncus acutus) (1:50) > common dolphin (Delphinus delphis), Risso's dolphin (Grampus griseus), and striped dolphin (Stenella coerueoalba), (1:100), and was related to interspecific variation in PCB methyl sulphone formation capacity.

摘要

测定了来自爱尔兰海和爱琴海（地中海）的六种鲸类动物鲸脂中多氯联苯及其甲基砜代谢物的含量。记录到的总多氯联苯含量范围为2.80至27.80微克/克（脂质重量），总甲基砜含量范围为0.03至0.58微克/克（脂质重量）。鲸类动物中甲基砜含量最高（0.58微克/克）的是一只来自爱尔兰海的港湾鼠海豚（Phocoena phocoena）。通过多氯联苯与甲基砜形成因子（PCB:MSF）比率测定的甲基砜异构体形成能力在不同物种之间差异很大，具体如下：港湾鼠海豚（1:10）>巨头鲸（Globicephalus melas）、白侧海豚（Lagenorhyncus acutus）（1:50）>普通海豚（Delphinus delphis）、里氏海豚（Grampus griseus）和条纹海豚（Stenella coerueoalba）（1:100），并且与多氯联苯甲基砜形成能力的种间差异有关。