摘要
目的 掌握雅安地区生活饮用水水碘含量分布现况,为进一步落实因地制宜、分类指导、科学补碘的防治策略提供依据。方法 2017年在雅安市所辖全部8个县（区）的所有乡（镇、街道办事处）按照统一集中式、部分集中式和分散式3种不同的供水方式采集生活饮用水,检测水碘含量并进行分析;此次或既往调查乡级水碘中位数高于10μg/L及以上的乡镇,以行政村（社区）为单位开展调查;同时调查集中供水工程运行情况,分散供水水源类型和井深,乡村常住人口数并记录其中心地理位置（经度和纬度）。结果 全市共辖143个乡镇,常住人口154. 20万。集中式供水的乡10个,混合式供水的乡112个、分散式供水的乡21个。10个乡镇的集中供水工程运转均正常,混合式和分散式供水的乡镇中抽取了632个村,村常住人口85. 21万,以泉水和河水为主要水源,各占61. 85%、30. 30%,井水仅占7. 85%,且井深不超过70 m。在143个乡镇共采集并检测1 844份水样,水碘含量最大值45. 3μg/L,最小值为1μg/L,水碘中位数为1μg/L,99. 13%的水碘含量低于10μg/L,0. 87%的水碘含量在10～50μg/L之间; 143个乡镇水碘中位数低于10μg/L的乡镇142个（99. 30%）,汉源县永利乡水碘中位数为25. 4μg/L,调查其所有6个村水碘中位数均低于10μg/L。结论 雅安市99. 30%的乡镇水碘中位数低于10μg/L,外环境普遍缺碘,应继续坚持食盐加碘为主的综合防治措施,以持续巩固消除碘缺乏病成果。
Objective To understand the current distribution of iodine content in drinking water in Ya＇an city, and to provide the basis for further implantation of adjust measures to local conditions, and to classify the guidance and iodine supplementation scientifically. Methods The drinking water samples were collected from all the townships in the 8 counties （districts） of Ya＇an prefecture according to the three different water supply modes ： centralized mode, mixed mode and disperse mode in 2017. The water iodine content was tested and analyzed; the village which the median water iodine was more than 10 μg/L in this time or the survey before was investigated, and we took the administrative village （community） as the unit to investigate, and at the same time, we collected the operation information of the water supply project, the types of the mode of disperse water supply and the depth of wells, geographical center location were the number of resident population of the townships and villages and recorded （the longitude and latitude）. Results There were 143 townships with one million and 542 thousand residents in Ya＇an water supply system in the 143 townships were into 10 disperse centralized mode, 112 mixed mode mode. All the 10 centralized water divided and 21 supply projects were working in order. About 632 villages with mixed water supply mode and disperse water supply mode were selected, about 8 521 000 inhabitants were living in those villages, the source of water was mainly spring water （61.85%） and river water （30.30%）, the well water was only 7.85%, and the depth of the well was no deeper than 70 meters. A total of 1 844 water samples from 143 villages was collected and tested, the maximal water iodine was 45.3 μg/L, the minimum water iodine was 1.0 p,g/L, the median water iodine was 1.0 μg/L, about the 99.13% samples of the water iodine content was less than 10 μg/L, and 0. 87% samples of the water iodine content was between 10 -50 μg/L, among 143 villages, the median water iodine of 142 villages were less than 10 μ/L （99.30%） , the median water iodine of Yongli village in Hanyuan county was 25.4 μg/L , but the median water iodine was less than 10 μg/L in all six villages of Hanyuan county. Conclusion About 99.30% villages with their water iodine content were less than 10 μ/L in Ya＇an city, the external environment was general iodine deficiency, as a main measure to prevent iodine deficiency disorders, universal salt iodization should be continued to persist, so that to consolidate the results of prevention.
作者
张义梅
宋康
ZHANG Yimei;SONG Kang(Ya＇an Center for Disease Control and Prevention,Ya＇an 625000,Sichuan Province,China)
出处
《预防医学情报杂志》
CAS
2018年第12期1526-1529,共4页
Journal of Preventive Medicine Information
关键词
碘
饮用水
现状分析
iodine
drinking water
status analysis
