Iodine level in drinking water of residents in Guangzhou City in 2022
10.3760/cma.j.cn231583-20240326-00072
- VernacularTitle:2022年广州市居民生活饮用水碘含量调查
- Author:
Conghui XU
1
;
Haiyan CHEN
;
Ke LI
;
Hongwei ZHOU
;
Hao ZHANG
;
Jianmin XU
;
Lirui FAN
Author Information
1. 广州市疾病预防控制中心寄生虫病与地方病预防控制部，广州 510440
- Publication Type:Journal Article
- Keywords:
Drinking water;
Iodine;
Iodine deficiency
- From:
Chinese Journal of Endemiology
2024;43(12):959-963
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the iodine level in drinking water of residents in Guangzhou City.Methods:From March to October 2022, a survey of iodine level in residents' drinking water was conducted in 2 702 administrative villages (communities) in 11 municipal districts of Guangzhou City. Water samples were collected according to different water supply methods (centralized, decentralized, and mixed), and the water iodine level was determined using inductively coupled plasma mass spectrometry. The distribution of iodine level in drinking water of residents in administrative villages (communities) was analyzed.Results:In 2 702 administrative villages (communities) in Guangzhou City, centralized water supply was the main way of water supply, accounting for 95.34% (2 576/2 702); decentralized water supply accounted for 3.66% (99/2 702); mixed water supply accounted for 1.00% (27/2 702). The overall water iodine of each administrative village (community) was 8.93 (5.93, 13.19) μg/L, ranging from 0.00 to 67.79 μg/L. Among them, 99.81% (2 697/2 702) of the administrative villages (communities) had a median water iodine level of less than 40 μg/L, indicating iodine deficiency areas; 0.19% (5/2 702) of the administrative villages (communities) had a median water iodine of 40 - 100 μg/L, indicating suitable iodine areas; no high iodine area with a median water iodine level greater than 100 μg/L was found.Conclusions:The iodine level in the drinking water of residents in Guangzhou City is generally at a low level, and the external environment is generally deficient in iodine. No area with high iodine level has been found.
