Objective To study the symptomatic degree and disease character of persons exposed to arsenic and the distribution of high arsenic water in the endemic arsenism area of Shanxi province.

• 目的探讨山西省地方性砷中毒病区暴露人群的病情程度和发病特点以及高砷水的分布规律,为科研防治工作提供科学依据。