滥木厂铊矿区植物和动物中Tl、Hg、As含量变化总的趋势是以Hg最高 ,Tl次之 ,As最低为特点。它们明显受生物赖以生存的地质地球化学和生物地球化学环境制约 ,尤其是矿区水、土壤和岩、矿石中高背景Tl、Hg、As含量制约。矿区生物中Tl、Hg、As含量普遍高 ,尤其在矿体和矿化层部位的风化土壤中 ,植物的Tl、Hg、As含量异常高 ,不难看出 ,矿区生物中Tl、Hg、As含量的高低 ,不仅是判别矿区污染程度的标志 ,也是找矿 ,特别是找盲矿体的标志 The general trends of Tl, Hg, As contents in plants and animals in the Thallium mining area are as follows: the highest Hg, followed by Tl, and the lowest As. They are obviously restricted by the geo-geochemistry and biogeochemical environment where the organisms depend, especially the Tl, Hg, As content in the high background of the water, soil, rock and ore in the mining area. The contents of Tl, Hg, As in the mining area are generally high. Especially in the weathered soils where the ore body and the mineralized layer are located, the Tl, Hg, As contents of the plants are extremely high. It is easy to see that Tl, Hg, The level is not only a sign of determining the degree of pollution in the mining area, but also a sign of prospecting, especially for blind ore bodies