Dietary exposure assessment of total mercury and methylmercury in commercial rice in Sri Lanka
文献类型：期刊论文
| 作者 | Xu, Xiaohang; Han, Jialiang; Abeysinghe, Kasun S.; Atapattu, Anjana J.; De Silva, P. Mangala C. S.; Xu, Zhidong6; Long, Shuiting2; Qiu, Guangle |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2020 |
| 卷号 | 239 |
| ISSN号 | 0045-6535 |
| 关键词 | Total mercury Methylmercury Rice Fish Exposure |
| DOI | 10.1016/j.chemosphere.2019.124749 |
| 英文摘要 | Methylmercury (MeHg) in rice has attracted growing health concern over the past decade, due to the accumulation of high MeHg levels, which may pose potential health risk to humans. Rice is the staple food in Sri Lanka; nevertheless, the presence of micro pollutants, such as MeHg has been not investigated. Therefore, commercial rice samples from the Sri Lankan market (n = 163) were measured to reveal the total mercury (THg) and MeHg levels. THg (mean: 1.73 +/- 0.89 ng/g, range: 0.21-6.13 ng/g) and MeHg concentrations (mean: 0.51 +/- 0.37 ng/g; range: 0.03-3.81 ng/g) were low. Compared to the fish MeHg exposure, the rice MeHg exposure was generally lower in different consumption groups, suggesting that rice plays a less role than fish in MeHg exposure in Sri Lanka. Babies (infants and toddlers) at one year old may face fish MeHg exposure (0.17 mu g/kg bw/day) higher than the reference dose for MeHg (RfD)-0.1 mu g/kg bw/day, which was more than 5 times that of rice MeHg exposure (0.031 mu g/kg bw/day). Future studies in Sri Lanka should focus on health impacts under long-term overexposure of MeHg, especially in vulnerable populations. Some diet changes should be made to mitigate MeHg exposure levels in Sri Lankans. (C) 2019 Elsevier Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000498305500063 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/11531]  |
| 专题 | 西双版纳热带植物园_2012年后新成立研究组 |
| 作者单位 | 1.Guizhou Med Univ, Guiyang 550025, Guizhou, Peoples R China 2.De Silva, P. Mangala C. S.] Univ Ruhuna, Dept Zool, Fac Sci, Matara, Sri Lanka 3.Atapattu, Anjana J.] Coconut Res Inst, Agron Div, Lunuwila 61150, Sri Lanka 4.Atapattu, Anjana J.] Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, 99 Lincheng West Rd, Guiyang 550081, Guizhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Xiaohang,Han, Jialiang,Abeysinghe, Kasun S.,et al. Dietary exposure assessment of total mercury and methylmercury in commercial rice in Sri Lanka[J]. CHEMOSPHERE,2020,239. |
| APA | Xu, Xiaohang.,Han, Jialiang.,Abeysinghe, Kasun S..,Atapattu, Anjana J..,De Silva, P. Mangala C. S..,...&Qiu, Guangle.(2020).Dietary exposure assessment of total mercury and methylmercury in commercial rice in Sri Lanka.CHEMOSPHERE,239. |
| MLA | Xu, Xiaohang,et al."Dietary exposure assessment of total mercury and methylmercury in commercial rice in Sri Lanka".CHEMOSPHERE 239(2020). |
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来源：西双版纳热带植物园
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