Total arsenic concentrations in Chinese children’s urine by different geographic locations, ages, and genders

被引:0
|
作者
Xuan Zhang
Beibei Wang
Xiaoyong Cui
Chunye Lin
Xitao Liu
Jin Ma
机构
[1] Beijing Normal University,State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment
[2] University of Chinese Academy of Sciences,College of Life Sciences
[3] Chinese Research Academy of Environmental Sciences,State Key Laboratory of Environmental Criteria and Risk Assessment
来源
Environmental Geochemistry and Health | 2018年 / 40卷
关键词
Urine; Arsenic; Children; Geography; Age; Gender;
D O I
暂无
中图分类号
学科分类号
摘要
Little is known about the variation of Chinese children’s exposure to arsenic by geography, age, gender, and other potential factors. The main objective of this study was to investigate the total arsenic concentration in Chinese children’s urine by geographic locations, ages, and genders. In total, 259 24-h urine samples were collected from 210 2- to 12-year-old children in China and analyzed for total arsenic and creatinine concentrations. The results showed that the upper limit (upper limit of the 90% confidence interval for the 97.5 fractile) was 27.51 µg/L or 55.88 µg/g creatinine for Chinese children. The total urinary arsenic levels were significantly different for children in Guangdong, Hubei, and Gansu provinces (P < 0.05), where the upper limits were 24.29, 58.70, and 44.29 µg/g creatinine, respectively. In addition, the total urinary arsenic levels were higher for 2- to 7-year-old children than for 7- to 12-year-old children (P < 0.05; the upper limits were 59.06 and 44.29 µg/g creatinine, respectively) and higher for rural children than for urban children (P < 0.05; the upper limits were 59.06 and 50.44 µg/g creatinine, respectively). The total urinary arsenic levels for boys were not significantly different from those for girls (P > 0.05), although the level for boys (the upper limit was 59.30 µg/g) was slightly higher than that for girls (the upper limit was 58.64 µg/g creatinine). Because the total urinary arsenic concentrations are significantly different for general populations of children in different locations and age groups, the reference level of total urinary arsenic might be dependent on the geographic site and the child’s age.
引用
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页码:1027 / 1036
页数:9
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