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2017-2020年河南省生活饮用水碘含量调查结果分析

Investigation results of iodine in drinking water in Henan Province from 2017 to 2020

摘要:

目的:调查河南省居民生活饮用水碘含量,明确河南省水碘分布特征。方法:2017年,在河南省全部县(市、区,以下简称县),以乡(镇、街道办事处,以下简称乡)为单位开展生活饮用水碘含量调查;并对调查发现的水碘含量在10 μg/L以上的乡,以行政村(居委会,以下简称行政村)为单位开展生活饮用水碘含量调查。2018-2020年,对从未检测过水碘含量或更换水源后尚未检测过水碘含量的行政村进行补充调查。每个采样点采集不少于25 ml水样,采用硫酸铈催化分光光度法检测水碘含量。结果:2017-2020年,河南省水碘中位数为8.20 μg/L。共在全省18个省辖市、160个县、2 465个乡的50 124个行政村进行水碘含量调查,其中,65.5%(32 807/50 124)的行政村水碘中位数< 40 μg/L,属于碘缺乏地区;16.9%(8 473/50 124)的行政村水碘中位数在40~100 μg/L,属于适碘地区;17.6%(8 844/50 124)的行政村水碘中位数> 100 μg/L,属于水源性高碘地区。结论:河南省外环境整体处于碘缺乏状态,大部分行政村为碘缺乏地区,水源性高碘地区和适碘地区均有一定比例的存在。

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abstracts:

Objective:To investigate the iodine content in drinking water of residents in Henan Province, and clarify the distribution characteristics of water iodine in Henan Province.Methods:In 2017, in all counties (cities and districts, hereinafter referred to as counties) of Henan Province, taking township (town, subdistrict office, hereinafter referred to as township) as the unit to carry out an investigation of iodine content in drinking water; and in the township with water iodine content of 10 μg/L or more, taking administrative village (neighborhood committee, hereinafter referred to as the administrative village) as the unit to carry out the drinking water iodine content investigation. Supplementary investigation was conducted from 2018 to 2020 in administrative villages where water iodine levels had never been tested or had not been tested after replacing water sources. At least 25 ml water samples were collected at each sampling site, and the water iodine content was determined by cerous sulfate catalytic spectrophotometry.Results:From 2017 to 2020, the median water iodine in Henan Province was 8.20 μg/L. A total of 50 124 administrative villages in 2 465 townships, 160 counties and 18 provincial-level cities were investigated for iodine content in drinking water, of which 65.5% (32 807/50 124) of the administrative villages had a median water iodine < 40 μg/L, belonging to iodine deficiency area; 16.9% (8 473/50 124) of the administrative villages had a median water iodine of 40-100 μg/L, suitable for iodine; and 17.6% (8 844/50 124) of the administrative villages had a median water iodine > 100 μg/L, belonging to water source high iodine area.Conclusions:Henan Province as a whole is at the state of iodine deficiency in the external environment. Most administrative villages are iodine deficiency areas. There are certain proportion of water source areas with high iodine and areas with suitable iodine.

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作者: 滕妍利 [1] 马嘉俊 [1] 郭巧云 [1] 衡婧雅 [1] 朱琳 [1] 李小烽 [1] 杨金 [1] 郑合明 [1]
期刊: 《中华地方病学杂志》2023年42卷4期 296-300页 ISTICPKU
栏目名称: 现场调查
DOI: 10.3760/cma.j.cn231583-20211015-00346
发布时间: 2023-09-19
基金项目:
河南省医学科技攻关计划(联合共建)项目 Joint Construction Project of Henan Province Medical Science and Technology Research Plan
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