Health risk assessment of water fluoride in rural schools in drinking-water fluorosis areas in Shaanxi Province
10.3969/j.issn.1006-2483.2023.04.010
- VernacularTitle:陕西省饮水型氟病区农村学校水氟健康风险评估
- Author:
Peiyu LEI
1
,
2
;
Ru JIA
1
,
2
;
Xiaofen HUI
1
,
2
;
Jingli ZHENG
1
,
2
Author Information
1. Institute of Environmental Health and Research Evaluation , Shaanxi Provincial for Disease Control and Prevention , Xi'
2. an , Shaanxi 710054 , China
- Publication Type:Journal Article
- Keywords:
Drinking water;
Fluoride;
Health risk assessment
- From:
Journal of Public Health and Preventive Medicine
2023;34(4):44-47
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the health risks of fluoride in drinking water in rural schools in drinking-water fluorosis areas in Shaanxi Province, and to provide a scientific basis for formulating measures to prevent fluoride and improve water quality. Methods The drinking water of rural schools in Guanzhong and northern Shaanxi Province was monitored from 2017 to 2020. The fluoride concentration was evaluated in accordance with the “Sanitary Standards for Drinking Water” (GB5749-2006). The health risk assessment method recommended by USEPA was used to assess the health risk of rural students exposed to fluoride through drinking water in the two regions. Results A total of 2 826 water samples were monitored from 2017 to 2020. The overall compliance rate of fluoride in water quality was 92.29%, with an average concentration of 0.500 mg/L. The non-carcinogenic health risk of fluoride in drinking water in rural schools in drinking-water fluorosis areas was <1. There was no statistically significant difference in non-carcinogenic health risk of fluoride in water quality between different regions of the same age group (P > 0.05). In the same age group, the non-carcinogenic health risk of fluoride in groundwater was higher than that in surface water (P < 0.05). The order of non-carcinogenic health risk of fluoride in drinking water with different water treatment methods from high to low was disinfection only > sedimentation filtration > conventional treatment > untreated (P < 0.05). Conclusion The non-carcinogenic risk of oral intake of fluoride in drinking water from rural schools in drinking-water fluorosis areas in Shaanxi Province is still at an acceptable level. In the future, it is necessary to continue to promote comprehensive prevention and treatment measures focusing on water improvement and fluoride reduction.
