考查重金属污染物的毒性效应是探讨重金属水环境容量的基本出发点。

Examining the toxic effect of heavy metal pollutants is essential for exploring heavy metal water environmental capacity.

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分析煤矸石中这些金属元素在环境中的迁移转化途径及其对生物体的毒性效应，对人体健康影响的研究具有重要意义。

Analysizing the way of migration and transform of the metallic elements of the gangue in the environment, its toxic effects to the organism and influence on human health are important significance.

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