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Mercury contents in rice and potential health risks across China
Huifang Zhao; Haiyu Yan; Leiming Zhang; Guangyi Sun; Ping Li; Xinbin Feng
2019
Source PublicationEnvironment International
Volume126Pages:406-412
Abstract

Rice samples were collected at 560 sites in 15 provinces across China in areas without known point mercury (Hg) sources. Total mercury (THg) and methylmercury (MeHg) concentrations were analyzed in these rice samples for risk assessment. Relatively low THg and MeHg concentrations were found in the majority of the white rice samples with an overall mean of 4.74 (1.06–22.7) μg kg−1 and 0.682 (0.03–8.71) μg kg−1, respectively. The means (range of) THg concentration of rice in each geographical region were 5.23 (1.07–19.5) μg kg−1, 5.14 (1.06–17.2) μg kg−1, 4.45 (1.41–17.2) μg kg−1, 4.20 (1.48–19.4) μg kg−1, 3.49 (1.49–10.7) μg kg−1, and 4.53 (1.30–19.4) μg kg−1 in east, centre, south, southwest, northwest and northeast, China, respectively, and the corresponding values for MeHg concentrations were 0.898 (0.127–8.35) μg kg−1, 0.603 (0.207–2.48) μg kg−1, 0.516 (0.032–1.50) μg kg−1, 0.615 (0.050–5.03) μg kg−1, 0.704 (0.148–2.41) μg kg−1 and 0.565 (0.035–8.71) μg kg−1, respectively. Hg contents in rice across China were found to be at background levels. Both the probable daily intakes (PDIs) of inorganic Hg (IHg) and MeHg from rice consumption showed low risks for general population in the investigated regions.

KeywordRice Mercury Methylmercury Probable Daily Intake Health Risk
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10227
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.Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, M3H5T4, Canada
Recommended Citation
GB/T 7714
Huifang Zhao,Haiyu Yan,Leiming Zhang,et al. Mercury contents in rice and potential health risks across China[J]. Environment International,2019,126:406-412.
APA Huifang Zhao,Haiyu Yan,Leiming Zhang,Guangyi Sun,Ping Li,&Xinbin Feng.(2019).Mercury contents in rice and potential health risks across China.Environment International,126,406-412.
MLA Huifang Zhao,et al."Mercury contents in rice and potential health risks across China".Environment International 126(2019):406-412.
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