An annual national monitoring report on drinking-water-borne endemic fluorosis in 2012
10.3760/cma.j.issn.2095-4255.2015.09.013
- VernacularTitle:2012年度全国饮水型地方性氟中毒监测报告
- Author:
Junrui PEI
;
Lijun ZHAO
;
Wei ZHANG
;
Wei WANG
;
Guangqian YU
;
Dianjun SUN
;
Yanhui GAO
- Publication Type:Journal Article
- Keywords:
Drinking;
Fluoride poisoning;
Monitoring
- From:
Chinese Journal of Endemiology
2015;34(9):680-684
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the implementation effects of control measures and the dynamic prevalence of drinking-water-borne endemic fluorosis,in order to provide a scientific basis for developing control measures against the disease.Methods According to the Surveillance Scheme of Drinking-Water-Borne Endemic Fluorosis,137 counties were selected as monitoring counties in national 27 provinces (autonomous regions,municipalities) and Xin Jiang Production and Construction Corps.Three epidemic villages were selected as fixed monitoring villages in each county.The operating condition and the fluoride level of water improvement projects were investigated in the villages with water improvement projects.The fluoride level of drinking water was tested in the villages without water improvement projects.The fluoride content in drinking water was detected by the Standard Test Method for Drinking Water (GB/T 5750.5-2006).The preyalence of dental fluorosis of all children aged 8-12 were surveyed,and dental fluorosis was diagnosed by Clinical Diagnostic Criteria of Dental Fluorosis (WS/T 208-2011).Results ①427 villages were surveyed in 2012,among which the villages with water improvement projects accounted for 75.88％ (324/427).② 299 water improvement projects were investigated.Normal operation rates of those were 89.30％ (267/299).The qualified rate of fluoride content was 75.78％ (219/289).Totally 103 villages without water improvement projects were monitored.Villages with fluoride level ＞ 1.2-2.0 mg/L,＞ 2.0-4.0 mg/L and ＞ 4.0 mg/L accounted for 48.54％ (50/103),29.13％ (30/103) and 9.71％ (10/103),respectively.(③The national detection rate of dental fluorosis and community fluorosis index (CFI) in children aged 8-12 were 31.24％ (8 677/27 773) and 0.66.The detection rate and CFI of the villages with normal operation projects and the qualified fluoride content were 24.04％ (3 999/16 634) and 0.51.The detection rate and CFI of the villages with water improvement projects under abnormal operation or excessive fluoride were 40.77％ (1 654/4 057) and 0.91.The rate and CFI of the villages without water improvement projects were 42.70％ (3 024/7 082) and 0.86.Conclusions The rate of water improvement projects of the whole country is lower.The national normal operation rate of water defluoridation improvement projects is below 90％,and the qualified rate of fluoride content in drinking water is below 80％.The prevalence of dental fluorosis in children aged 8-12 is very mild.
