Li Jian, Xie Xiaojun
Institute of Hydrobiology and Water Environment, School of Life Science, Southwest University, No 2, Tiansheng Road, Beibei District, Chongqing, 400715, China.
Bull Environ Contam Toxicol. 2016 May;96(5):616-21. doi: 10.1007/s00128-016-1772-0. Epub 2016 Mar 12.
The concentrations of Pb, Cr, Cd, As, and Hg were analyzed in the muscles of eleven fish species collected from the Wanzhou section of the Three Gorges Reservoir, Yangtze River, China. The results showed that the concentrations of Pb, Cr, Cd, As, and Hg in the muscles of all of the fish species were lower than the proposed limits. The metal concentrations (Pb, Cr, Cd, and As) of pelagic fish species were found to be substantially lower than those in benthic fish species. The concentrations of Hg in carnivorous fish were higher than those in omnivorous fish. Compared with data obtained prior to the impoundment of the Three Gorges Reservoir, the concentration of Hg in the fish did not significantly increase after impoundment, while the concentrations of Pb, Cr, Cd, and As in the fish decreased.
对采自中国长江三峡水库万州段的11种鱼类肌肉中的铅、铬、镉、砷和汞浓度进行了分析。结果表明，所有鱼类肌肉中的铅、铬、镉、砷和汞浓度均低于规定限值。发现中上层鱼类的金属浓度（铅、铬、镉和砷）显著低于底栖鱼类。肉食性鱼类中的汞浓度高于杂食性鱼类。与三峡水库蓄水前获得的数据相比，蓄水后鱼类中的汞浓度没有显著增加，而鱼类中的铅、铬、镉和砷浓度则有所下降。
