Contaminant Trends in Freshwater Fish from the Laurentian Great Lakes: A 20-Year Analysis
Contaminant Trends in Freshwater Fish from the Laurentian Great Lakes: A 20-Year Analysis
复制标题
DOI：
10.1080/10807039.2012.759475
复制
发表时间：
2014-03-04
影响因子：
4.3
通讯作者：
Ripley, Michael P.
中科院分区：
文献类型：
--
作者：
Dellinger, John A.;Moths, Michael D.;Ripley, Michael P.
虽然劳伦特五大湖（GL）鱼类的饮食关注集中在持久性生物累积性有毒物质（PBT）污染物的风险上，但鱼类也是有益于人类健康的营养素的重要来源，如多不饱和脂肪酸（例如，二十碳五烯酸和二十二碳六烯酸）。本研究提供了过去20年GL部落渔业的PBT趋势数据。PBT污染物从1992年到2011年，分析了湖鳟鱼和白鲑鱼片部分的282种分析物的趋势模式，并报告了五个ATSDR/USEPA五大湖生物监测遗留污染物的情况。（Hg、sigma DDE、sigma DDT、HCB、灭蚁灵和sigma PCBs），两种可选的生物监测PBT（毒杀芬和西格玛二恶英/呋喃）和PCB 153作为特定的同系物标记。与最近的其他报告类似，我们的数据表明，GL生物群中大多数PBT污染物浓度已经下降，这可能表明在减少环境排放方面取得了进展。我们的研究证实，除汞和毒杀芬外，所有污染物都有显著下降。在校正年龄、血脂和体型等已知的独立因素后，这两项指标均保持不变。这些结果可能是令人鼓舞的，并可能提供有用的数据的长距离，也许是全球性的影响，PBTs对鱼类消费的安全。
Although dietary concerns of Laurentian Great Lakes (GL) fish focus on the risk from persistent bioaccumulative toxicant (PBT) contaminants, fish are also an important source of nutrients beneficial to human health such as polyunsaturated fatty acids (e.g., eicosapentanoic acid and docosahexanoic acid). This study presents PBT trend data from the GL tribal fisheries over the past 20years. PBT contaminants (282 analytes) from fillet portions of lake trout and whitefish were analyzed for trending patterns from 1992 to 2011 and are reported on five of the ATSDR/USEPA Great Lakes biomonitoring legacy contaminants (Hg, sigma DDE, sigma DDT, HCB, mirex, and sigma PCBs), two of the optional biomonitoring PBTs (toxaphene and sigma dioxins/furans) and PCB 153 as a specific congener marker. Similar to other recent reports our data indicate that most PBT contaminant concentrations in the GL biota have decreased, which may indicate progress in reducing environmental emissions. Our research confirms that all contaminants demonstrate significant declines except Hg and toxaphene. Both of those remained constant after correcting for known independent factors of age, lipid, and size. These results are potentially encouraging and may provide useful data for the long distance and perhaps global influences of PBTs on the safety of fish consumption.