Study On The Heavy Metal Pollution Of Yindongliang Lead-zinc Mine Area In Fengxian

Fengxian is production base of mineral resources in Shanxi. Mineral exploitation has contributed greatly to the local economy. But it also brings about serious environmental pollution. Pollution problem because of heavy metal occurres frequently which is very harmful.and increasingly fierce.It has aroused widespread attention of the society. Therefore, it is extremely urgent to study the heavy metal pollution of mine for relevant department to take preventive steps.This paper takes Yindongliang lead-zinc mine area as the main research scope.Through systematically gathering samples of slag, tailings, soil, surface water, sediment and plant tissue, by means of analytical facilities such as graphite oven atom absorption spectrophotometer, each kind of sample element content such as Zn, Pb, Cd, Cr, Cu has been obtained.The author has systematically analyzed concentration, migration and transformation rules of heavy metal ingredient in slag, tailings, soil, surface water, sediment and plant tissue applying the Mathematical Methods. And The releasing and transport models of AMD and heavy metals have been established.From the evaluation results, various types of samples are polluted on different levels by heavy metals, which is heavier pollution in water body and settlings. The research result indicates direct correlations of different levels between the single pollution index and osculating value of 5 heavy metals.Zn is the most outstanding one which can embody condition of comprehensive pollution.High active state of heavy metals content indicates the incursion form outside source in soil,which pose serious environmental threats. Analysis results of the local grains are not edible. After the fuzzy synthesized evaluation, the result show that heavy metal in research area is moderate pollution which should be solved urgently.