| Total and speciated arsenic levels in rice from China. | |
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MedLine Citation:
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PMID: 20485999 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Although the need for policy development on arsenic (As) in rice has been recognized and a legally enforceable maximum contaminant level (MCL) for inorganic arsenic (As(i)) in rice has been established in China, evidence reported in this article indicates that the risk of exposure to As for the Chinese population through rice is still underestimated. Polished rice from various production regions of China was analyzed for total As and arsenic species using HPLC-ICPMS. Total As concentration ranged 65.3-274.2 ng g(-1), with an average value of 114.4 ng g(-1). Four arsenic species, including arsenite (As(III)), arsenate (As(V)), dimethylarsinic acid (DMA) and monomethylarsonic acid (MMA), were detected in most rice samples. The As(i) (As(III) + As(V)) species was predominant, accounting for approximately 72% of the total As in rice, with a mean concentration of 82.0 ng g(-1). In assessing the risk from As in rice, we found that As intake for the Chinese population through rice is higher than from drinking water, with a 37.6% contribution to the maximum tolerable daily intake (MTDI) of As recommended by World Health Organization (WHO), compared with 1.5% from drinking water. Compared to other countries, the risk for the Chinese from exposure to As through rice is more severe due to the large rice consumption in China. Therefore, not only the scientific community but also local authorities should take this risk seriously. Furthermore, more stringent legislation of the MCL for rice should be enacted to protect the Chinese consumer from a high intake of As. |
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Authors:
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Feng Liang; Yulan Li; Guilin Zhang; Mingguang Tan; Jun Lin; Wei Liu; Yan Li; Wenwei Lu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment Volume: 27 ISSN: 1944-0057 ISO Abbreviation: Food Addit Contam Part A Chem Anal Control Expo Risk Assess Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-05-20 Completed Date: 2010-09-13 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101485040 Medline TA: Food Addit Contam Part A Chem Anal Control Expo Risk Assess Country: England |
Other Details:
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Languages: eng Pagination: 810-6 Citation Subset: IM |
Affiliation:
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Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Arsenic
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analysis* Arsenic Poisoning / prevention & control Bangladesh China Europe Food Contamination / analysis Food Handling / methods Geography Japan Microwaves Oryza sativa / chemistry* Thailand Water |
| Chemical | |
Reg. No./Substance:
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7440-38-2/Arsenic; 7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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