Effects of administrative region changes on drinking water-born endemic fluorosis areas in Hangzhou / 中华地方病学杂志
Chinese Journal of Endemiology
;
(12): 54-56, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-733799
ABSTRACT
Objective To investigate the effects of administrative region changes on prevention and control of fluorosis,in order to provide a scientific basis for evaluation and improvement of prevention and control measures.Methods An investigation was conducted in all drinking water-born endemic fluorosis areas in Hangzhou in 2017,to evaluate the status quo of water-improving defluoridation projects,measure the water fluoride content with "the Standard Detection Methods for Domestic Drinking Water" (GB/T 5750.7-2006),detect the dental fluorosis with Dean method and the urinary fluoride content by fluoride selective electrode method in children aged 8 to 12 years old.Results The historical endemic fluorosis areas in Hangzhou now involved 38 natural villages of 22 administrativevillages in 8 townships of 5 counties (cities and districts).All villages had completed water-improving projects which were running well as the fluoride contents of drinking water were less than 1.00 mg/L.The detection rate of dental fluorosis was 1.13% (9/795) among children aged 8-12 years.A total of 198 urine samples were tested,the urinary fluoride content varied from 0.12 to 2.90 mg/L,and the geometric mean was 0.77 mg/L.Conclusion Administrative region changes do not influence the effect of water-improving defluoridation projects,but management and monitoring of the water-improving projects still should be strengthened.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Endemiology
Year:
2019
Type:
Article
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