Status of mercury pollution in sediments from Hongfeng Lake in Guiyang

In order to know mercury content in sediment of Hongfeng Lake,sediments were collected to analyze the trait of mercury content in the lake and explore the pollution source.The study indicated that the sediments were polluted by mercury with excessive value compared with environmental background of Guiyang.The study also reveals that the closer the sites to the chemical and other factories,the heavier mercury containment in the lake sediments.The level of mercury in the sediments of Hongfeng Lake is high and the potential ecological risk is grave.