Fluorosis caused by indoor coal combustion in China: discovery and progress
2007
Zheng, Baoshan | Wu, Daishe | Wang, Binbin | Liu, Xiaojing | Wang, Mingshi | Wang, Aimin | Xiao, Guisen | Liu, Pugao | Finkelman, Robert B
In this study, investigations into endemic fluorosis were conducted and fluorine concentration in environmental samples determined. In an indoor coal-combustion-type fluorosis area, local clay was used to mix with coal for indoor combustion. There are two key steps in the procedure of the indoor transition of fluorine: indoor wet corns and vegetables strongly absorbed fluorine from indoor air; and fluorine strongly accumulated in clay, which was mixed with coal for combustion. Therefore, with the increasing of the percentage of clay in the clay-mixed coal as well as corn in foodstuff, the ratio of fluorosis will be increased.
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