Baseline concentrations of polychlorinated biphenyls and DDT in Lake Michigan fish, 1971.
Baseline concentrations of polychlorinated biphenyls and DDT in Lake Michigan fish, 1971.
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密歇根湖鱼类中多氯联苯和滴滴涕的基线浓度，1971 年。
DOI：
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发表时间：
1975
期刊：
影响因子：
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通讯作者：
Veith Gd
中科院分区：
文献类型：
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作者：
Veith Gd
：响应密歇根湖州际农药委员会的建议，作者旨在于 1971 年建立密歇根湖鱼类中多氯联苯 (PCB) 和滴滴涕的基线数据。由于过去两年见证了前所未有的立法行动，以保护食物资源和食物链顶端的其他水生物种免受持久性危险化学品的影响，作者还试图衡量合作立法行动对大型湖泊质量的影响。对 1971 年秋季从密歇根湖 14 个地区捕获的 13 种鱼类进行了 PCB 和 DDT 类似物分析。 PCB 的平均湿重浓度与 Aroclor 1254 类似，范围从虹鳟鱼中的 2.7 ppm 到湖鳟鱼中的 15 ppm。大多数长度超过 12 英寸的鳟鱼和鲑鱼含有的 PCB 浓度高于美国卫生、教育和福利部食品和药物管理局规定的 5 ppm 耐受水平。总 DDT 的平均浓度范围从吸盘中的不到 1 ppm 到大湖鳟鱼中的大约 16 ppm。通过气液色谱/质谱法证实了主要氯化烃的存在；通过全氯化获得了额外的 PCB 确认。最丰富的 PCB 是四氯联苯、五氯联苯、六氯联苯和七氯联苯，与商业制备的 Aroclor 1254 类似；近岸水域的鱼中含有较少的氯化多氯联苯。
: Responding to the recommendations of the Lake Michigan Interstate Pesticide Committee, the author aimed to establish baseline baseline data on polychlorinated biphenyls (PCB's) and DDT in Lake Michigan fish in 1971. Because the past 2 years had witnessed unprecedented legislative action to protect food resources and other aquatic species near the top of the food chain from persistent hazardous chemicals, the author also attempted to gauge the impact of cooperative legislative action on the quality of large lakes. Thirteen species of fish taken from 14 regions of Lake Michigan in the fall of 1971 were analyzed for PCB's and DDT analogs. Mean wet-weight concentrations of PCB's similar to Aroclor 1254 ranged from 2.7 ppm in rainbow smelt to 15 ppm in lake trout. Most trout and salmon longer than 12 inches contained PCB's at concentrations greater than the tolerance level of 5 ppm established by the Food and Drug Administration, U.S. Department of Health, Education, and Welfare. Mean concentrations of total DDT ranged from less than 1 ppm in suckers to approximately 16 ppm in large lake trout. The presence of the major chlorinated hydrocarbons was confirmed by gas-liquid chromatography/mass spectrometry; additional PCB confirmations were obtained through perchlorination. The most abundant PCB's were tetra, penta-, hexa-, and hepatchlorobiphenyls which are similar to commercially prepared Aroclor 1254; lesser chlorinated PCB's were present in fish from nearshore waters.