Shinn C, Dauba F, Grenouillet G, Guenard G, Lek S
EDB (Laboratoire Evolution et Diversité Biologique), UMR 5174, CNRS-Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cédex 4, France.
Ecotoxicol Environ Saf. 2009 Oct;72(7):1957-65. doi: 10.1016/j.ecoenv.2009.06.007. Epub 2009 Jul 14.
The present study aims at assessing the current situation of the heavy metal contaminated River Lot (SW France). Several fish species were captured in October 1987 and 2007 at three sampling sites. The concentration of copper, zinc, cadmium and lead were quantified in fish muscle and liver as well as in environmental samples (water, sediment, moss). The decrease in heavy metal concentrations in fish tissue between 1987 and 2007 reflects the decrease of heavy metal concentrations in the environment. Concentrations found in 2007 are comparable to those published by a study conducted in the 1990s. The situation of the River Lot has improved over the last 2 decades, although there is still margin for amelioration according to US EPA criterion to protect freshwater aquatic life. The average concentrations of cadmium in fish muscle in 2007 were above the maximum safe for human consumption defined by the European Commission.
本研究旨在评估受重金属污染的法国西南部洛特河的现状。1987年10月和2007年在三个采样点捕获了几种鱼类。对鱼的肌肉和肝脏以及环境样本（水、沉积物、苔藓）中的铜、锌、镉和铅浓度进行了定量分析。1987年至2007年期间鱼组织中重金属浓度的下降反映了环境中重金属浓度的降低。2007年测得的浓度与20世纪90年代进行的一项研究所公布的浓度相当。尽管根据美国环境保护局保护淡水水生生物的标准仍有改善空间，但在过去20年里洛特河的状况已有所改善。2007年鱼肌肉中镉的平均浓度高于欧盟委员会规定的人类食用的最大安全浓度。
