By analyzing the mercury contained in the waters,soil,propagations and sediments near the gold mine,on the upper Songhua River,which is along the east of Jilin Province,we have founded that the mercury pollution in river sediments was very serious.Being affected by it,the mercury concentration in the plants and the amphibian,Rana Chensinensis of the polluted samples was much higher than that of the unpolluted samples.The experiment results show that the accumulation of bowels is stronger than that of muscle...