Analysis of monitoring results of drinking water-borne endemic fluorosis in Henan Province in 2021
10.3760/cma.j.cn231583-20220602-00199
- VernacularTitle:2021年河南省饮水型地方性氟中毒监测结果分析
- Author:
Chunsheng YUAN
1
;
Jiajun MA
;
Yingjie YAN
;
Xiaohong LI
;
Guoqiang HOU
;
Heming ZHENG
Author Information
1. 河南省疾病预防控制中心地方病预防控制所，郑州 450016
- Keywords:
Drinking water;
Fluorosis, dental;
Water improvement project
- From:
Chinese Journal of Endemiology
2023;42(11):883-887
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the epidemic situation of drinking water-borne endemic fluorosis in Henan Province, evaluate the effectiveness of prevention and control measures, and provide a basis for formulating further prevention and control policies.Methods:From April to November 2021, a census of all diseased villages registered in 112 drinking water-borne endemic fluorosis counties (cities, districts, hereinafter referred to as counties) of 17 provincial-level cities and 9 provincial-level counties (cities) in Henan Province was conducted to collect the basic information of diseased counties and villages. The content of fluoride in drinking water and the prevalence of dental fluorosis in children aged 8 - 12 years old were measured on a village by village basis.Results:By the end of 2021, drinking water-borne endemic fluorosis was prevalent in 112 diseased counties in Henan Province, involving 17 450 diseased villages. Among them, 17 433 villages had implemented measures to reduce fluoride and improve water quality, with a water improvement rate of 99.90% (17 433/17 450). There were 14 920 villages with qualified water, and the qualified rate of water fluoride was 85.50% (14 920/17 450). There were a total of 4 232 water improvement projects in all diseased villages, with a normal operation rate of 97.09% (4 109/4 232) and a qualified rate of 93.03% (3 937/4 232) for water fluoride in the projects. The total detection rate of dental fluorosis in children in the province was 9.64% (39 391/408 584), with moderate to severe dental fluorosis accounted for 8.08% (3 182/39 391), the dental fluorosis index was 0.18. The prevalence of fluorosis was negative.Conclusions:In 2021, the prevalence of drinking water-borne endemic fluorosis is widespread in Henan Province, and measures to reduce fluoride and improve water quality in diseased villages have been basically implemented. However, the fluoride content of water in some villages still does not meet the standard, and some water improvement projects cannot operate normally throughout the year. In the future, it is necessary to address the above issues one by one and consolidate the achievements in prevention and control of drinking water-borne endemic fluorosis.
