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Home > Journals > SCIREA Journal of Environment > Archive > Paper Information

Impacts of chemical elements on fluorosis in children and the formation of “Safe Islands” in the fluorosis area: Case analysis in Weinan region, Shaanxi Province, China

Volume 3, Issue 5, October 2019    |    PP. 159-184    |PDF (695 K)|    Pub. Date: September 17, 2019
22 Downloads     266 Views  

Author(s)
Xinlei Liu, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China
Xuxiang Li, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China
Chunqi Li, School of Electrical and Electronic Engineering, University of Leeds, Leeds, LS2 9JT, UK
Pingping Liu, School of Energy and Power Engineering, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China
Hao Fu, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China

Abstract
Weinan region is a typical water-drinking endemic fluorosis area in China. However, during the investigation of fluorosis in Weinan, we found that there were specific areas with low or even no prevalence of fluorosis under high-fluoride drinking water conditions. These areas were defined as “Safe Islands”. The present study investigated the prevalence of dental fluorosis among 8- to 12-year-old children and the drinking water fluoride content in all townships in Weinan region, and 18 Safe Island areas were selected as the research objects. In total, 5 typical townships with high dental fluorosis prevalence were selected as the control group, and the effects of 23 soil chemical elements on differences in the condition prevalence were analyzed. Statistical analysis was performed using correlation analysis, the Standard Coefficient Method and the Rank Sum Test. The results showed that phosphorus (P), copper (Cu), zinc (Zn) and lead (Pb) had significant effects on the dental fluorosis prevalence in children, and the contribution values of the four soil elements were 1.212, -4.267, 3.102 and 1.733, respectively. The results of the Rank Sum Test revealed that the contents of P and Cu in the soil were significantly different between the two groups, suggesting that these two elements probably caused abnormal fluorosis prevalence and affected the formation of a Safe Island in the Weinan fluorosis area.

Keywords
Fluorosis in children · cultivated soil · Safe Island · Soil chemical elements· Impacts · Weinan fluorosis area

Cite this paper
Xinlei Liu, Xuxiang Li, Chunqi Li, Pingping Liu, Hao Fu, Impacts of chemical elements on fluorosis in children and the formation of “Safe Islands” in the fluorosis area: Case analysis in Weinan region, Shaanxi Province, China, SCIREA Journal of Environment. Vol. 3 , No. 5 , 2019 , pp. 159 - 184 .

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