Based on the characters of structure, land form, hydrogeology, water environment,rock and mineral geochemistry, and so on, this paper has studied the origin of the distribution of high-arsenic water.

• 本文从构造、地貌、水文地质和水环境、岩矿地球化学等方面特征，论证了高砷水分布区的成因，从而为改水提供了基础。