Health risk assessment of heavy metal pollution in a soil-rice system: a case study in the Jin-Qu Basin of China

文献类型： 外文期刊

第一作者： Guo, Bin

作者： Guo, Bin;Hong, Chunlai;Lin, Yicheng;Fu, Qinglin;Xu, Mingxing;Huang, Chunlei;Yin, Hanqin;Tong, Wenbin

作者机构：

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2020 年 10 卷 1 期

页码：

收录情况： SCI

摘要： A regional field survey of a total of 109 pairs of soil and rice samples was conducted to evaluate the health risks posed by heavy metals in the Jin-Qu Basin, China. The studied soils are characterized by acid (pH in mean level of 5.5), carbon rich (soil organic matter in mean of 33.6 g kg(-1)) and mainly contaminated by Cd (42.2% samples exceeded the standard value of 0.3 mg kg(-1) (GB15618-2018)). The spatial distributions of Cd, Pb and Zn exhibited similar geographic trends. 34% and 30% of the rice samples containing Cd and Pb exceeded the threshold value of 0.2 mg kg(-1) (GB2762-2017), respectively. The risk estimation of dietary intake had a target hazard quotient value of Cd of 0.918 and a hazard index value for rice consumption of 2.141. Totally, Cd and Pb were found to be the main components contributing to the potential health risks posed by non-carcinogenic effects for local inhabitants.

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