Report on the surveillance of coal-burning type endemic fluorosis in China in 2005
- VernacularTitle:2005年全国燃煤污染型地方性氟中毒重点监测总结
- Author:
Surveillance Fluorosis Endemic National of Group COLLABERATION
- Publication Type:Journal Article
- Keywords:
Endemic disease;
Fluoride poisoning;
Coal;
Surveillance
- From:Chinese Journal of Endemiology
2008;27(5):518-520
- CountryChina
- Language:Chinese
-
Abstract:
Objective To know the fulfillment and effects of control meagures and dynamic preVMence ot coal-buming endemic fluorosis in China in 2005,to pmvide basis and technique Bupport for endemic fhorosis control in China.Metllods The survey was carried out according to The National Survey Scheme of Endemic Fluomsis, covering 13 villages,8 counties of 8 provinces having coal-burning endemic fluorosis.Fhoride content in main food and urine was deterlnined with iron 8elective electrode method,and dental fluorosis of 8-12 years old children was diagnosed with Dean method.Results ①A total of 1 58 356 new stoves were installed in 2005,and the rate of impmved stoves increased by 18.95%,reaching 43.3%(362 088/835 869).The general rate of qualified gtoves was 92.54%(1688/1824).②nuoride content in corns and chilli exceeded the state standard generally,and the highest (mean)in corns exceeded the state standard nearly by 14 times,while the highest(mean)in chilli exceeded the standard by 94 times.③Detectable rate of dental fluorosis in children was below or equal 30%in 3 surveillance spots, more than 30% and less than 60%in 4 surveillance spots,morethan 60%andlessthan 80%in a surveillance spots,and more than 80%in 5 surveiuance spots.Urine fluoride content(geometric mean)were below or equal 1.4 ms/L in 7 surveillance spots,and more than l.4 mg/L in 6 surveillanee spots.Conclusions Prngress of control mea8ure$in coal- buming countie8 Burveyed was made greatly in 2005,but corns and chilli in some survey spots were still polluted by fluoride seriously.PrevaJence of endemic fluorosis in some coal-burning areas is not controlled effectively.
