钻井矿石堆积及炼汞废弃矿渣堆积而引起周围环境的铊污染，面积约１×２．５公里，污染区内，土壤铊在４３０～１７５７０μｇ／１００ｇ之间，野生草本植物及灌、乔木中铊含量为０．２０～４３．５０μｇ／１００９，动物中铊检出量在０．６７～１０２６μｇ／１００ｇ间，鸡卵为２５～１２７０μｇ／１００ｇ，在污染中心区，井水为０．０４～１３．８ｎｍｏｌ／Ｌ，河水０．０４～２．７７ｎｍｏｌ／Ｌ，蔬菜在３６．５０～９９０．００μｇ／１００ｇ，粮食为８．５～４０．００μｇ／１００ｇ间，该地区为铊的严重污染区，当地居民因长期食用其蔬菜、粮食、水及鸡、猪肉等而引起慢性铊中毒。 Thallium pollution in the surrounding environment caused by the accumulation of drilling ore and slag from the refining of mercury, the area is about 1 × 2.5 km, the soil thallium is between 430 and 17570 μg / 100 g in the contaminated area, The content of thallium was between 0.67 ~ 1026μg / 100g and that of chicken eggs was between 25 ~ 1270μg / 100g in the range of 0.20 ~ 43.50μg / 100g. In the center of pollution, the well water was 0.04 ~ 13 .8nmol / L, river water 0.04 ~ 2.77nmol / L, vegetables in 36.50 ~ 990.00μg / 100g, food between 8.5 ~ 40.00μg / 100g, the area is severely polluted area of ​​thallium, Local residents suffer from chronic thallium poisoning due to chronic consumption of their vegetables, grains, water, chicken and pork.