Risk Assessment of Heavy Metal Contamination in Fresh Vegetables from Markets in Luoyang City, China

文献类型: 外文期刊

第一作者: Wang, Fa Yuan

作者: Wang, Fa Yuan;Zhang, Chang Shui;Xu, Xiao Feng;Wang, Fa Yuan

作者机构:

关键词: Vegetables;Heavy metals;Risk assessment;Cadmium;Contamination.

期刊名称:ASIAN JOURNAL OF CHEMISTRY ( 影响因子:0.355; 五年影响因子:0.293 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: Consumption of vegetables contaminated with heavy metals has been identified a major food chain route for human exposure. Heavy metal concentrations in 15 species of fresh vegetables from markets in Luoyang City were investigated. The results showed that mean concentrations of Pb in wax gourd, pumpkin, potato, carrot and lettuce and mean Cd concentrations in pumpkin, marrow, tomato, greeB pepper, potato, carrot and lettuce exceeded the permissible limits in China. The maximum concentrations of Pb and Cd were both found in potato, exceeding the permissible limits in China by 17.0 times and 2.9 times, respectively. Generally, Cd and Pb were the commonest metal pollutants, particularly in root-stem vegetables. Cu, Zn, Ni and Cr concentrations were all below the permissible limits. The results of health risk assessment showed that Cd and Pb had potential health risk for both adult and children consumers, while Cu, Zn, Ni and Cr were generally safe.

分类号: O6

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