The non-carcinogenic health risk assessment of fluoride in drinking water for children in historical drinking water-borne endemic fluorosis areas in Tianjin
10.3760/cma.j.cn231583-20250115-00033
- VernacularTitle:天津市饮水型地方性氟中毒历史病区儿童生活饮用水氟化物非致癌健康风险评估
- Author:
Yang WANG
1
;
Fang LI
1
;
Yuxin DU
1
;
Yushan CUI
1
Author Information
1. 天津市疾病预防控制中心环境健康与公共卫生所，天津 300011
- Publication Type:Journal Article
- Keywords:
Fluoride;
Drinking water;
Health risk assessment
- From:
Chinese Journal of Endemiology
2025;44(8):609-615
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To learn about the current status of fluoride in drinking water from historical drinking water-borne endemic fluorosis areas in Tianjin, and to evaluate the non-carcinogenic health risk of fluoride in drinking water for children.Methods:A cross-sectional survey was conducted from January to November 2023 to investigate the fluoride level in drinking water in 2 028 villages with children aged 6 - < 18 years residing in 10 historical drinking water-borne endemic fluorosis areas in Tianjin. Based on the risk assessment model of the Technical Guide for Environmental Health Risk Assessment of Chemical Exposure (WS/T 777-2021) and the child specific exposure parameters in the highlights of the Chinese exposure factors handbook (Children volume), the hazard index (HI) was used to quantify and assess the non-carcinogenic health risk of fluoride in drinking water for children of different age groups (6 - < 9, 9 - < 12, 12 - < 15, 15 - < 18 years old).Results:The water fluoride level [ M ( Q1, Q3)] in the historical drinking water-borne endemic fluorosis areas in Tianjin was 0.28 (0.12, 0.85) mg/L, ranging from 0.05 to 1.08 mg/L. The HI values of children in each age group were 0.218, 0.185, 0.136, and 0.124, respectively, all < 1, indicating low non-carcinogenic health risk. Among them, the age group of 6 - < 9 years old had the highest HI value, with HI values ranging from 0.148 to 0.412 in 10 regions, and the difference was statistically significant ( H = 594.62, P < 0.001). Comparing drinking water of different source types, regions, and treatment methods, there were statistically significant differences in HI values among children of different age groups ( Z = - 9.25, - 9.25, - 9.25, - 9.25, - 6.96, - 6.96, - 6.96, - 6.96, H = 146.75, 146.75, 146.75, 146.75, P < 0.001). Conclusion:The non-carcinogenic health risks of fluoride in drinking water for children in historical drinking water-borne endemic fluorosis areas of Tianjin are relatively low, but there is still a need to strengthen monitoring and early warning for young children.
