Campbell Linda M, Muir Derek C G, Whittle D Mike, Backus Sean, Norstrom Ross J, Fisk Aaron T
National Water Research Institute, Environment Canada, Burlington, Ontario L7R 4A6, Canada.
Environ Sci Technol. 2003 May 1;37(9):1720-5. doi: 10.1021/es026225m.
Recently, there has been an increase in studies focusing on an emerging class of organic contaminants, hydroxylated PCBs (OH-PCBs) and chlorinated phenolic compounds (CPCs) in the environment, particularly in northern regions of Europe and Canada. Since information for fish from the Great Lakes are scarce, we determined the blood plasma concentrations of OH-PCB congeners, pentachlorophenol (PCP), 2,3,4,5-tetrachlorophenol (TCP), and 4-hydroxyheptachlorostyrene (4-OH-HpCS) for lake trout (Savelinus namaycush) collected from two of the Great Lakes, Lake Ontario and Lake Superior, and two regional lakes, Lake Champlain and Lake Opeongo. PCP was the dominant CPC in lake trout (105-658 pg/g of plasma). Detectable concentrations of 2,3,4,5-TCP and 4-OH-HpCS were found in all lake trout (2.6-101 and 0.4-27 pg/g, respectively). Highest concentrations were found in trout from Lake Ontario and Lake Superior. Sixteen OH-PCBs were quantified, with 4-OH-CB187 having the highest concentration in all samples (10-173 pg/g of plasma). Unexpectedly, highly chlorinated OH-PCBs such as 4'-OH-CB199 (mean 21.4 and 74.4 pg/g), 4,4'-diOH-CB202 (18.3 and 27.7 pg/g), and 4'-OH-CB208 (24.5 and 34.7 pg/g) were found in lake trout from Lake Ontario and Lake Superior, respectively. Future studies to delineate the sources and impacts of CPCs in the Great Lakes catchment are needed.
最近，针对环境中一类新出现的有机污染物——羟基多氯联苯（OH-PCBs）和氯化酚类化合物（CPCs）的研究有所增加，尤其是在欧洲北部地区和加拿大。由于来自五大湖鱼类的相关信息匮乏，我们测定了从安大略湖和苏必利尔湖这两个五大湖以及尚普兰湖和奥彭戈湖这两个区域湖泊采集的湖鳟（湖红点鲑）血浆中OH-PCB同系物、五氯苯酚（PCP）、2,3,4,5-四氯苯酚（TCP）和4-羟基七氯苯乙烯（4-OH-HpCS）的浓度。PCP是湖鳟体内主要的CPC（血浆中含量为105 - 658 pg/g）。在所有湖鳟中均检测到了可检测浓度的2,3,4,5-TCP和4-OH-HpCS（分别为2.6 - 101 pg/g和0.4 - 27 pg/g）。在安大略湖和苏必利尔湖的鳟鱼中发现的浓度最高。对16种OH-PCBs进行了定量分析，其中4-OH-CB187在所有样本中的浓度最高（血浆中含量为10 - 173 pg/g）。出乎意料的是，在安大略湖和苏必利尔湖的湖鳟中分别发现了高氯代的OH-PCBs，如4'-OH-CB199（平均含量为21.4和74.4 pg/g）、4,4'-二羟基-CB202（18.3和27.7 pg/g）以及4'-OH-CB208（24.5和34.7 pg/g）。未来需要开展研究来确定五大湖流域CPCs的来源及其影响。
