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目的了解仙桃市居民饮用水碘、砷、氟含量现状,为碘缺乏病、饮水型地方性砷中毒、饮水型地方性氟中毒防治措施提供科学依据。方法采取普查和随机抽样相结合的方法,对全市居民饮用的出厂水、末梢水、压把井水、敞口井水和江河水进行全面抽样调查;水样采集、检测与结果判定参照国家标准或推荐方法;统计分析使用Excel 2003进行数据录入和整理,应用SPSS 17.0软件进行数据分析。结果水碘含量中位数为31.53μg/L,最大值147.93μg/L,最小值16.6μg/L;水砷含量中位数为0.002 mg/L,最大值0.08mg/L,最小值0.002 mg/L,>0.05mg/L的超标水样占1.37%;水氟含量中位数为0.10 mg/L,最大值0.98mg/L,最小值0.10 mg/L;集中式供水和分散式供水砷、氟含量中位数差异有统计学意义(P值均<0.01)。结论仙桃市居民饮用水碘、氟含量均在国家规定的安全范围内,水砷含量部分超标,应加强人群碘营养水平监测和健康教育,加快农村改水工程进度和质量,定期开展水质监测,切实落实国家地方病防治规划目标。
Objective To understand the current status of iodine, arsenic and fluorine in potable water for inhabitants in Xiantao, and to provide a scientific basis for the prevention and cure measures of iodine deficiency disorders, endemic arsenism in drinking water and endemic fluorosis in drinking water. Methods The method of combining census and random sampling was used to conduct a comprehensive sampling survey of drinking water, peripheral water and pressure of well water, open well water and river water in the whole city. Water samples were collected, tested and the results were judged with reference to national standards Or recommended methods; Statistical analysis using Excel 2003 for data entry and finishing, the application of SPSS 17.0 software for data analysis. Results The median of iodine in water was 31.53μg / L, the maximum was 147.93μg / L and the minimum was 16.6μg / L. The median of water arsenic was 0.002mg / L, the maximum was 0.08mg / L and the minimum was 0.002mg /L,> 0.05mg / L of excessive water samples accounted for 1.37%; water fluoride content of the median 0.10 mg / L, the maximum value of 0.98mg / L, the minimum 0.10 mg / L; centralized water supply and distributed water arsenic , The median difference in fluoride content was statistically significant (P <0.01). Conclusion The iodine and fluorine contents of drinking water in Xiantao City are all within the safety limits stipulated by the state. The content of arsenic in water is in part exceeded. The iodine nutrition level monitoring and health education should be strengthened to speed up the progress and quality of rural water diversion project. Water quality monitoring, Effective implementation of the national endemic disease prevention and control planning goals.