Urinary Concentrations of Toxic and Essential Trace Elements among Rural Residents in Hainan Island, China

Yosuke Inoue, Masahiro Umezaki, Hongwei Jiang, Dandan Li, Jianwei Du, Yuming Jin, Bin Yang, Bai Li, Yufeng Li and Chiho Watanabe
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Yosuke Inoue: Department of Human Ecology, Graduate School of Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
Masahiro Umezaki: Department of Human Ecology, Graduate School of Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
Hongwei Jiang: Research Institute for Humanity and Nature, 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto 603-8047, Japan
Dandan Li: Hainan Provincial Center for Disease Control and Prevention, 44 Haifu Road, Haikou, Hainan 57023, China
Jianwei Du: Hainan Provincial Center for Disease Control and Prevention, 44 Haifu Road, Haikou, Hainan 57023, China
Yuming Jin: Hainan Provincial Center for Disease Control and Prevention, 44 Haifu Road, Haikou, Hainan 57023, China
Bin Yang: Hainan Provincial Center for Disease Control and Prevention, 44 Haifu Road, Haikou, Hainan 57023, China
Bai Li: Institute of High Energy Physics, Chinese Academy of Science, 19B Yuquan Road, Shijingshan District, Beijing 100049, China
Yufeng Li: Institute of High Energy Physics, Chinese Academy of Science, 19B Yuquan Road, Shijingshan District, Beijing 100049, China
Chiho Watanabe: Department of Human Ecology, Graduate School of Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

IJERPH, 2014, vol. 11, issue 12, 1-18

Abstract: Background : Toxic element exposure and essential trace element consumption may have changed after the Chinese economy transformed to a market-oriented system. The objectives of this study were to measure urinary concentrations of toxic (arsenic, cadmium, lead) and essential trace (selenium, zinc, copper) elements among rural residents in Hainan, China and to examine if variations in economic development are linked to differences in toxic and trace element exposure. Methods : We conducted a questionnaire-based survey and undertook anthropometric measurements of residents aged ?20 years ( n = 599). Urinary samples were collected and analyzed using inductively coupled plasma mass spectrometry. Results : The median (?g/g creatinine) element concentrations were: arsenic, 73.2; cadmium, 1.8; lead, 3.1; selenium, 36.5; zinc, 371; and copper, 11.0. Intra-community variation in element concentrations was explained by age (arsenic, cadmium, zinc and copper), sex (arsenic, cadmium and selenium: higher in females; zinc: higher in males), body mass index (cadmium) and individual involvement in the market economy as indexed by agrochemical use (lead and selenium). The degree of community-level economic development, which was determined by the proportion of people living in better housing among the study communities, was positively associated with cadmium concentration. Conclusions : The degree of community-level economic development was positively associated with urinary cadmium concentration while individual involvement in the market economy was positively associated with lead and selenium.

Keywords: toxic elements; heavy; trace elements; urine; economic development; China (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2014
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