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目的掌握河南省高氟饮水村分布,为实施降氟改水防治措施提供可靠依据。方法在全省农村,以自然村为单位采集饮水水源水样。集中式供水采集2份水样,分散式供水采集3份水样,测定水氟含量,以水氟平均值代表自然村饮水含氟量。结果全省共调查水源45 3701个,覆盖自然村17 4425个,共筛查出高氟饮水自然村(水氟含量均值≥1.1mg/L)20 408个,占调查自然村的11.70%(20 408/174 425);高氟饮水村分布在17个省辖市的122县(市、区),覆盖人口1240.9万人;河南省东部、东南部和东北部的商丘、周口、开封和濮阳4个相邻的省辖市,合计水氟超标村数、超标村人口数、中重水氟超标村数在全省相应的构成比分别为74.92%(15289/20408)、70.21%(8712900/12409371)和87.60%(5 658/6 459)。结论河南省高氟饮水村分布范围广,主要分布在河南省东部、东南部和东北部大范围的黄河冲击平原。
Objective To grasp the distribution of high-fluoride drinking water in Henan Province and provide a reliable basis for the implementation of measures to reduce fluoride and improve water quality. Methods In the rural areas of the province, water samples of drinking water sources were collected from natural villages. Two water samples were collected in centralized water supply, three water samples were collected in distributed water supply, and the fluorine content in water was determined. The average fluoride content in water in villages was represented by the average water fluoride content. Results A total of 45 3701 water sources were investigated in the province, covering 17 4425 villages. A total of 20 408 natural fluoride-rich drinking water villages (average fluoride content ≥1.1 mg / L) were identified, accounting for 11.70% of the surveyed natural villages (20 408/174 425). High-fluoride drinking water villages are distributed in 122 counties (cities and districts) of 17 provincial cities and cover a population of 12,409,000. Four adjacent areas of Shangqiu, Zhoukou, Kaifeng and Puyang in eastern, southeast and northeastern Henan provinces Of the provincial cities, the total number of exceeding the village of fluoride water, exceeding the village population, the proportion of overweight in the village of fluorine in the corresponding proportion of the province were 74.92% (15289/20408), 70.21% (8712900/12409371) and 87.60% (5 658/6 459). Conclusion High fluoride drinking water distribution in Henan Province covers a wide range of areas, mainly distributed in the Yellow River impact plain in the eastern, southeast and northeast of Henan Province.