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

作　　者：滕妍利 马嘉俊 郭巧云 衡婧雅 朱琳 李小烽[1] 杨金[1] 郑合明[1] Teng Yanli;Ma Jiajun;Guo Qiaoyun;Heng Jingya;Zhu Lin;Li Xiaofeng;Yang Jin;Zheng Heming(Institute for Endemic Disease Control and Prevention,Henan Provincial Center for Disease Control and Prevention,Zhengzhou 450016,China)

机构地区：[1]河南省疾病预防控制中心地方病预防控制所,郑州450016

出　　处：《中华地方病学杂志》2023年第4期296-300,共5页Chinese Journal of Endemiology

基　　金：河南省医学科技攻关计划(联合共建)项目(LHGJ20190684、LHGJ20200122)。

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10μg/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8.20μg/L。共在全省18个省辖市、160个县、2465个乡的50124个行政村进行水碘含量调查,其中,65.5%(32807/50124)的行政村水碘中位数<40μg/L,属于碘缺乏地区;16.9%(8473/50124)的行政村水碘中位数在40~100μg/L,属于适碘地区;17.6%(8844/50124)的行政村水碘中位数>100μg/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。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 10μg/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 8.20μg/L.A total of 50124 administrative villages in 2465 townships,160 counties and 18 provincial-level cities were investigated for iodine content in drinking water,of which 65.5%(32807/50124)of the administrative villages had a median water iodine<40μg/L,belonging to iodine deficiency area;16.9%(8473/50124)of the administrative villages had a median water iodine of 40-100μg/L,suitable for iodine;and 17.6%(8844/50124)of the administrative villages had a median water iodine>100μg/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.

关 键 词：饮用水 碘 分布 

分 类 号：R123.1[医药卫生—环境卫生学]