Dabrowska Henryka, Bernard Ewelina, Barska Iwona, Radtke Krzysztof
Sea Fisheries Institute in Gdynia, ul. Kołłataja 1, 81-332 Gdynia, Poland.
Ecotoxicol Environ Saf. 2009 Oct;72(7):1975-84. doi: 10.1016/j.ecoenv.2009.07.007. Epub 2009 Aug 13.
PCBs measured in the muscle, liver, and gonads of cod collected from two locations in the southern Baltic were evaluated as total (summation operator PCBs), indicator (summation operator PCB(7)), and dioxin-like (summation operator DL-PCBs) concentrations. Gender, tissue lipid content, and collection site were important determinants of PCB levels. Irrespective of collection site, lipid-normalized summation operator PCBs, summation operator PCB(7), and summation operator DL-PCBs in females were the lowest in the muscle, and of similar levels in liver and gonads. In males the concentrations had a decreasing order of liver >muscle >gonads. Despite the gender differences in tissue levels, the profiles were fairly similar in both genders and sites. Significant relationships were found for both summation operator DL-PCBs and summation operator TEQ(DL-PCB) and concentrations of summation operator PCBs and summation operator PCB(7). The levels of summation operator TEQ(DL-PCB) in the livers of both genders and in female gonads, in addition to the total PCBs load in these organs, raise concern and suggest that the species can suffer from PCBs toxic effects.
对从波罗的海南部两个地点采集的鳕鱼的肌肉、肝脏和性腺中多氯联苯的测量结果，按总量（Σ多氯联苯）、指示物（Σ多氯联苯(7)）和类二噁英（Σ二噁英类多氯联苯）浓度进行了评估。性别、组织脂质含量和采集地点是多氯联苯水平的重要决定因素。无论采集地点如何，雌性鳕鱼肌肉中脂质标准化的Σ多氯联苯、Σ多氯联苯(7)和Σ二噁英类多氯联苯含量最低，肝脏和性腺中的含量相近。雄性鳕鱼体内这些物质的浓度顺序为肝脏＞肌肉＞性腺。尽管不同性别组织水平存在差异，但不同性别和地点的分布情况相当相似。Σ二噁英类多氯联苯和Σ二噁英类多氯联苯毒性当量与Σ多氯联苯和Σ多氯联苯(7)浓度之间均存在显著相关性。两性肝脏和雌性性腺中的Σ二噁英类多氯联苯毒性当量水平，以及这些器官中的多氯联苯总量令人担忧，表明该物种可能受到多氯联苯的毒性影响。
