摘要
The Baotou city is the largest industrial city in Inner Mongolia Autonomous Region,where the problem of ecological environment becomes increasingly serious along with the rapid industrial development.Based on the multi-objective geochemical survey in the region,this paper investigated the ecological environment using element values,background values and regional element distribution maps.Studies of soil mercury,cadmium heavy metal elements and the spatial distribution were carried out to assess the environmental pollution in Baotou city using the Nemerow index method.The result shows that the local area mainly dominated by smelting is significantly polluted,and environment quality in the rest areas is good in general.The assessment results provide a scientific basis for environmental planning and environment management of the Baotou city in the future.