Abstract:ObjectiveTo investigate the total fluoride intake (TFI) for each child,to explore the relationships among the TFI and the fluoride intake from different way,and to provide evidences for endemic fluorosis control and the effect assessment.MethodsWamiao village,a severe endemic fluorosis areas,was selected for this study.236 students from grade 2 to grade 6 in the village primary school were recruited for our investigation.Drinking water fluoride in each child′s household shallow wells,fluoride in diet,and fluoride in outdoor or indoor′s air were detected.Then the TFI were calculated according to the national criteria of China.The relationship among the TFI and the fluoride intake from different way were analyzed.ResultsThe level of fluoride in drinking water was higher than that in boiling water in superficial wells in Wamiao village［(2.45±0.80)mg/L vs (1.87±0.79)mg/L,P<0.01］.The level of fluoride in diet was 0.61 mg/d.[JP2]According to the calculation formula of total fluorine uptake,the total fluorine uptake of each child in the village was 0.73-[JP]5.57(3.05±0.99) mg/d.Drinking water fluoride was the main source for Wamiao village′s children,accounting for 80.06%.The regression equation between the drinking water fluoride and the TFI was y=4.88/(1+8.51×e0.71x) according to the Logistic Model.ConclusionThe average TFI in children in Wamiao village is significantly higher than that of the National Criteria,and the fluoride in drinking water is the main source for children.Defluoridation from the drinking water is the main measure for endemic fluorosis prevention in this village.