Concentrations of Inorganic Arsenic in Milled Rice from China and Associated Dietary Exposure Assessment

文献类型: 外文期刊

第一作者: Huang, Yatao

作者: Huang, Yatao;Wang, Min;Mao, Xuefei;Qian, Yongzhong;Chen, Tianjin;Zhang, Ying;Huang, Yatao;Wang, Min;Mao, Xuefei;Qian, Yongzhong;Chen, Tianjin;Zhang, Ying;Huang, Yatao;Huang, Yatao

作者机构:

关键词: rice;arsenic contamination;inorganic arsenic;dietary exposure assessment

期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )

ISSN:

年卷期:

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收录情况: SCI

摘要: Total arsenic (As) and inorganic As (Ass) in milled rice (n = 1653) collected from China were studied to evaluate the contamination level, distribution, and health risks. The mean concentrations of the total As and Ass were 116.5 and 90.9 mu g/kg, respectively. There were significant differences (P < 0.01) between the 11 provinces, and 1.1% of samples exceeded the maximum contaminant level established by Chinese legislation. According to the exposure assessment method of probabilistic simulation, all values of the target hazard quotients (THQs) for chronic noncarcinogenic risks (skin lesions as the point of departure) were below 1, suggesting that the Chinese population will not encounter a significant noncarcinogenic risk. However, the mean values of margin of exposure (MOE) for lung cancer risks ranging from 3.86 to 8.54 were under 100 for all age groups and genders of the Chinese population; moreover, MOE values for some major rice-producing and -consuming countries, such as Japan, Thailand, Bangladesh, and the United States, were all also below 100. More attention should be paid to carcinogenic risks from rice Ass intake, and some control measures to reduce rice As; intake should be taken.

分类号: R15`S

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