The relationship between chemical elements in soil and whole blood, and fluorosis induced by coal-fired pollution.
To study the relationship between chemical elements in soil and whole blood, and fluorosis induced by coal-fired pollution, ecological and case-control studies were carried out. We determined the concentrations of 11 chemical elements and pH values in soil in two fluorosis-affected counties in Chongqing, China, and analyzed the correlation between these values and prevalence of dental fluorosis. Ni, I, F, Hg, and pH values positively correlated with fluorosis prevalence (P < 0.05); these soil parameters may be related to coal-fired pollution fluorosis. Cu, Zn, Ca, Mg, and Fe concentrations in whole blood, and fluoride levels in urine of residents in epidemic and non-epidemic areas were determined. Cu, Zn, Mg, and Fe levels of the children in the case group were lower than those of the children in the external control group; urine fluoride level in the children in the case group was higher than that of the children in the internal and external control groups (P < 0.05). The levels of Mg, Fe, and urine fluoride were higher in the case adult group than in the internal adult control group (P < 0.05). Anti-fluoride elements were deficient in endemic areas.
Department of Epidemiology, Faculty of Public Health and Management, Chongqing Medical University, Yi Xue Yuang Road No.1, Yu Zhong District, Chongqing, 400016, China, 259148876@qq.com.
Hao
H
Wang
Lihong
L
Mu
Miao
M
Jiang
Yingxiong
Y
Wang
Wei
W
Yan
Yongzhuo
Y
Jiao
D002648:Child; D002681:China / Q000453:epidemiology; D003031:Coal; D004781:Environmental Exposure / Q000032:analysis / Q000706:statistics & numerical data*; D005260:Female; D009050:Fluorosis, Dental / Q000097:blood / Q000453:epidemiology*; D006801:Humans; D008297:Male; D011210:Power Plants; D015995:Prevalence; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis* / Q000097:blood
D003031:Coal; D012987:Soil; D012989:Soil Pollutants