山东省黄河下游流域高砷水源筛查及受威胁人口流行病学调查

目的 了解山东省黄河下游流域居民饮用水含砷量情况,调查饮高砷水地区受威胁人口数量及地方性砷中毒(简称地砷病)病情.方法 对黄河下游郓城、嘉祥、东昌府和博兴4个县(区)采用横断面调查方法进行水砷筛查,水砷测定采用半定量快速检测试剂盒,对检出的含砷水样采用原子荧光法进行定量测定:并对饮高砷水地区人群受危害情况进行临床流行病学调查.结果 4个县(区)共筛查水样4765份,检出含砷水样303份,含砷量≥0.030 mg/L的水样35份;其中12份水样含砷量超过国家标准(≥0.050 mg/L),主要分布在东昌府、郓城、嘉祥3个县(区);对水砷≥0.030 mg/L的28个村庄 13 032名居民进行临床流行病学健康状况调查,检出可疑地砷病患者11人.结论 山东省黄河下游流域存在含砷量超标水井;对可疑地砷病患者需进一步进行确诊.

Screening on high arsenic water source and epidemiological investigation on threatened population of lower reaches of Yellow River in Shangdong Province

Objective To screen the arsenic content situation of drinking water in lower reaches of Yellow River and survey the amount of threatened people drinking high arsenic water and the condition of endemic arsenism.Methods Four counties of Yuncheng,Jiaxiang,Dongchangfu and Boxing were selected to colleft the water samples by CroOSS-sectional survey method.The water arsenic content wag determined by semi-quantitative rapid kit.All water samples having arsenic were re-determined by atomic fluorescence spectrometry.And the nurober of threatened people who drinking high arsenic water were investigated.Results In 4765 water wells screened,303 water samples had contained arsenic,arsenic content of 35 samples Was≥0.030 mg/L,12 samples were exceeding the international standard (arsenic content≥0.050 ms/L),they distributed in 3 counties of Dongchangfu,Yuncheng and Jiaxiang.The residents drinking water wells of arsenic content≥0.030 mg/L were surveyed by epidemiological investigation.And in the 28 villages 13 032 residents and 11 Bu8picious patient8 wlere checked out.Conclusion The wells with excesive water arsenic content are existing in the lower reaches of Yellow River and people suspicious of endemic arsenism need to be further identified.