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• Article
• Open Access
• Published: 13 July 2020

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

• Bin Guo1?na1,
• Chunlai Hong1?na1,
• Wenbin Tong3,
• Mingxing Xu2,
• Chunlei Huang2,
• Hanqin Yin2,
• Yicheng Lin1 &
• Qinglin Fu1?

volume?10, Article?number:?11490 (2020) Cite this article

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Subjects

• Environmental impact

Abstract

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.

» Author: Bin Guo

» Reference: doi:10.1038/s41598-020-68295-6

» Publication Date: 13/07/2020

» More Information

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