Abstract
Objective To study the relation between water fluoride and other chemical composition in water of Nan-shui-bei-diao middle line areas in Hebei and the effect to the endemic fluorosis. Methods Collected specimen of water in region of Nan-s hui-bei-diao to detect water fluoride,total hardness in water,total alkalinity in water and pH with chemical experiments.Results There is a positive correlation between the con centration of water fluoride and that of the total alkalinity and a negative cor relation between the water fluoride and the total hardness and water iodine. Conclusions The results showed that in the Nan-shui-b ei-diao middle line areas the water fluoride and other chemical composition have acertain effect on endemic fluorosis.
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