| Methylmercury in rice (Oryza sativa L.) grown from the Xunyang Hg mining area, Shaanxi province, northwestern China | |
Guangle Qiu ; Xinbin Feng; Bo Meng; Xun Wang
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| 2012 | |
| Source Publication | Pure and Applied Chemistry
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| Volume | 84Issue:2Pages:281-289 |
| Abstract | Mercury (Hg) is a global pollutant and can transform into methylmercury (MeHg), a highly toxic and bioaccumulative organic form. Recent surveys showed that rice (Oryza sativa L.) rather than fish is the main source of human MeHg exposure in Hg mining and retorting regions in Guizhou province, southwestern China, where rice is a traditional staple food. Here we report that MeHg in rice grown at an active Hg mining and retorting region in Shaanxi province, northwestern China, characterized with different climate compared to Guizhou, contained levels up to 240 mu g kg(-1) MeHg in bran, 78 mu g kg(-1) MeHg in polished rice, and 30 mu g kg(-1) MeHg in hull, respectively. Although the polishing process may reduce MeHg content, the mass balance calculation showed that greater than 50 % of total MeHg mass can be observed in white rice (polished rice). The ongoing Hg retorting activities, which account for the high levels of ambient air Hg, result in high levels of MeHg in rice grains. Our results further demonstrate that the accumulation of MeHg is a common feature of rice. |
| Keyword | Mercury Mining Activity Methylmercury Northwestern China Rice |
| Subject Area | 环境地球化学 |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.gyig.ac.cn/handle/352002/4878 |
| Collection | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 环境地球化学国家重点实验室 |
| Recommended Citation GB/T 7714 | Guangle Qiu,Xinbin Feng,Bo Meng,et al. Methylmercury in rice (Oryza sativa L.) grown from the Xunyang Hg mining area, Shaanxi province, northwestern China[J]. Pure and Applied Chemistry,2012,84(2):281-289. |
| APA | Guangle Qiu,Xinbin Feng,Bo Meng,&Xun Wang.(2012).Methylmercury in rice (Oryza sativa L.) grown from the Xunyang Hg mining area, Shaanxi province, northwestern China.Pure and Applied Chemistry,84(2),281-289. |
| MLA | Guangle Qiu,et al."Methylmercury in rice (Oryza sativa L.) grown from the Xunyang Hg mining area, Shaanxi province, northwestern China".Pure and Applied Chemistry 84.2(2012):281-289. |
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