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目的了解掌握土默特左旗地方性氟中毒流行现状。方法水氟检测采用氟离子选择电极法。结果调查352个自然村,水氟含量大于生活饮用水标准的有69个自然村,超标率为19.60%,涉及人口37947人。二次调查167个地方性氟中毒历史病村,水氟含量超标村有47个,超标率为28.14%。改水工程报废率为17.31%。结论改水降氟是控制地方性氟中毒切实可行的重要措施,关键是保证改水工程质量与改水设施的正常运行。
Objective To understand the prevalence of endemic fluorosis in Tumotezuoqi. Methods Fluoride ion-selective electrode method was used. Results A survey of 352 villages showed that there were 69 natural villages whose water fluoride content was higher than the standard of drinking water. The exceeding standard rate was 19.60%, involving 37,947 people. The second investigation of 167 cases of endemic fluorosis in the village of history, the water exceeding the village of fluorine content of 47, exceeding the rate of 28.14%. Water projects scrapped rate of 17.31%. Conclusion It is an important and feasible measure to control fluorosis by changing water to reduce fluoride. The key is to ensure the quality of water diversion works and the normal operation of water diversion facilities.