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目的了解甘肃省环县高砷水源分布和饮水型地方性砷中毒流行状况,为今后防治工作提供依据。方法对全县不同类型的饮用水水源进行采样检测,发现有高砷水源的自然村,检测全部饮用水的砷含量。对于砷含量超标的村,进行地方性砷中毒病情调查。结果在全县7个乡(镇)24个自然村采集水样384份,其中水砷含量≥0.05 mg/L的61份(0.05 mg/L～0.22 mg/L),集中在环县西南部的演武乡。对该乡水砷超标的村进行病情普查,发现砷中毒病人55人,患病率为29.4%。结论甘肃省环县属中度砷中毒病区。
Objective To understand the distribution of high-arsenic water sources and endemic arsenism prevalence in Huanxian County, Gansu Province, and provide a basis for future prevention and treatment. Methods Sampling and testing of different types of drinking water sources in the county, a natural village with high arsenic source was found, and the arsenic content of all drinking water was tested. For villages with excessive levels of arsenic, endemic arsenism is investigated. Results A total of 384 water samples were collected from 24 natural villages in 7 townships (towns) of the county, of which 61 (0.05 mg / L ~ 0.22 mg / L) with arsenic content ≥ 0.05 mg / L were concentrated in the southwest of Huanxian Yanwu Township. The village of arsenic exceeding the village water disease survey, found 55 patients with arsenic poisoning, the prevalence was 29.4%. Conclusion Central County, Gansu Province is a moderate arsenic poisoning area.