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河套平原砷中毒病区是内蒙最严重的病区之一。本文首次对病区环境中砷的价态、化合态以及时的迁移、富集、转化规律进行了系统研究。结果表明，粘质土、腐殖上有利于砷的富集，还原环境可使Ａｓ５＋向Ａｓ３＋转化，在富含腐殖质的还原环境中甲基化作用显著，使砷酸盐转化为甲基砷酸盐。河套平原碑的地球化学行为都是导致砷中毒严重流行的主要原因。通过勘探优质地下水，引用黄河渠系水和采用物理或化学降砷方法改水，可以有效地防治砷中毒。
Hetao plain arsenic poisoning is one of the most serious ward in Inner Mongolia. This article for the first time on the ward environment arsenic valence state, and timely migration, enrichment, transformation rules were systematically studied. The results showed that the enrichment of arsenic in clayey soil and humus was beneficial to the conversion of As5 + to As3 + in the reducing environment and the methylation in the humus - salt. The geochemical behavior of Hetao plain monument is the main reason leading to the serious epidemic of arsenic poisoning. Arsenic poisoning can be effectively controlled by exploring high-quality groundwater, quoting water from the Yellow River canal system and using physical or chemical arsenic removal methods.