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Comparison of in vitro digestion methods for determining bioaccessibility of Hg in rice of China
Ze Wu;  Xinbin Feng;  Ping Li;  Che-Jen Lin;  Guangle Qiu;  Xun Wang;  Huifang Zhao;  Hui Dong
2018
Source PublicationJournal of Environmental Sciences
Volume68Pages:185-193
Abstract

Rice consumption can be a major pathway for mercury (Hg) exposure, which can cause health hazards to Chinese residents. To accurately assess the potential health risks, the bioaccessibility of Hg in rice samples collected at background and Hg-contamination sites was examined using four in vitro methods. The results showed that <50% of the total mercury (THg) was bioaccessible in the studied rice samples. The THg bioaccessibility in the rice samples collected at the Hg-contaminated site was higher than that observed at the background area. The bioaccessibility of arsenic (As) and cadmium (Cd) was also evaluated for comparison of the four in vitro methods used in this study. The Physiologically Based Extraction Test was found to be the most accurate method based on the consistency of the results compared to those reported in previous studies. The estimated daily intakes of THg via rice consumption using the bioaccessibility data were found to meet the recommendation value set by the JECFA and the WHO in both sites. However, the potential health risk was not negligible at the Hg-contaminated sites, due to the high THg concentration and bioaccessibility in the rice samples. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences.

KeywordMercury Bioaccessibility Rice Health-risks
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/8832
Collection环境地球化学国家重点实验室
Affiliation1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Center for Advances in Water and Air Quality, Lamar University, Beaumont, TX, USA
Recommended Citation
GB/T 7714
Ze Wu;Xinbin Feng;Ping Li;Che-Jen Lin;Guangle Qiu;Xun Wang;Huifang Zhao;Hui Dong. Comparison of in vitro digestion methods for determining bioaccessibility of Hg in rice of China[J]. Journal of Environmental Sciences,2018,68:185-193.
APA Ze Wu;Xinbin Feng;Ping Li;Che-Jen Lin;Guangle Qiu;Xun Wang;Huifang Zhao;Hui Dong.(2018).Comparison of in vitro digestion methods for determining bioaccessibility of Hg in rice of China.Journal of Environmental Sciences,68,185-193.
MLA Ze Wu;Xinbin Feng;Ping Li;Che-Jen Lin;Guangle Qiu;Xun Wang;Huifang Zhao;Hui Dong."Comparison of in vitro digestion methods for determining bioaccessibility of Hg in rice of China".Journal of Environmental Sciences 68(2018):185-193.
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