Survey and analysis on the delineation of areas with different water iodine level in the external environment of Jinzhong City in 2024
10.3760/cma.j.cn231583-20241024-00375
- VernacularTitle:2024年晋中市外环境不同水碘含量地区划定调查分析
- Author:
Jingzhen LIU
1
;
Liya WANG
;
Yanling REN
;
Yu GAO
;
Qingyu WU
;
Li WANG
Author Information
1. 晋中市疾病预防控制中心地方病防治部，晋中030800
- Publication Type:Journal Article
- Keywords:
Drinking water;
Iodine;
Measure;
Implement
- From:
Chinese Journal of Endemiology
2025;44(3):227-231
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To find out the distribution of water iodine in Jinzhong City, Shanxi Province, and provide scientific basis for scientifically delimiting the distribution range of different water iodine level areas.Methods:From March to August 2024, by using a cross-sectional survey method, the administrative villages (communities, abbreviated as administrative villages) were used as units in 11 counties (districts, cities, abbreviated as counties) of the city to verify the changes in the names and administrative divisions of counties, townships, and administrative villages based on the survey results of iodine content in drinking water in the city in 2017. Population data, water source information, and water supply project operation were investigated, and 10% sampling method was used to collect drinking water samples. Cerium sulfate catalytic spectrophotometry was used to test water iodine level.Results:A total of 2 402 centralized water supply projects in 2 181 administrative villages were investigated and all were operating normally. The median iodine concentration in the city's water was 2.43 μg/L, ranging from 0.15 to 556.45 μg/L. The number of villages and population covered by water iodine level of < 40, 40 - 100, and > 100 μg/L was 1 990 villages and 2 841 752, 153 villages and 372 085, 38 villages and 75 493, respectively.Conclusions:According to the classification of water iodine standards, Jinzhong City presents a coexistence of iodine deficiency, adequate iodine, and high iodine areas, with iodine deficiency areas still being the main focus. Therefore, it is necessary to continue implementing salt iodization measures. Areas with high iodine levels need to continue to promote the implementation of measures to improve water quality, reduce iodine levels, and supply non iodized salt. Efforts should be made to promote disease prevention knowledge among key areas and populations, guide the public to scientifically supplement iodine, and effectively control the hazards of high iodine.
