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为探讨1996年8月冷水江市某村亚急性砷中毒的流行特征，应用流行病学和生态毒理学方法对该地送行了调查．结果表明，当地冶炼厂产生的砷碱渣对环境构成污染，其中一被污染井的水砷均值高达1．23±1．41mg／L，患者尿砷值为0．92±0．96mg／L，与对照组有显著关异，而人群砷暴露时间较短．据此认为，此次亚急性砷中毒系由饮水受砷污染所致，环境与地质因素在其中亦起着重要作用。
In order to explore the epidemiological characteristics of subacute arsenic poisoning in a village in Lengshuijiang City in August 1996, the epidemiological and ecotoxicological methods were used to investigate the epidemic. The results showed that the arsenic caustic smelter produced by the local smelter pollutes the environment. The average arsenic value of water in one of the contaminated wells is as high as 1.23 ± 1.41 mg / L, and the urinary arsenic value in patients is 0.92 ± 0.96 mg / L , Significant difference with the control group, while the crowd of arsenic exposure time is shorter. Accordingly, the subacute arsenic poisoning is caused by drinking water contaminated by arsenic, and environmental and geological factors also play an important role in this.