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Correlation and the concentrations of Pb, Cd, Hg and As in vegetables and soils of Chongqing, China

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Abstract

This paper studies the concentration of Pb, Cd, Hg and As in vegetable and soil of 13 main vegetable base, Chongqing, China, as well as the correlation between them. Results show that the concentrations of heavy metals in different vegetables from 13 main vegetable bases of Chongqing are also significantly different. The order of Pb concentration is root vegetable (the average value is 0.203 mg/kg) > leaf vegetable (the average value is 0.065 mg/kg) > solanaceous vegetable (the average value is 0.004 mg/kg); the order of Cd concentration is leaf vegetable (the average value is 0.090 mg/kg) > solanaceous vegetable (the average value is 0.061 mg/kg) > root vegetable (the average value is 0.049 mg/kg); the order of Hg concentration is leaf vegetable (the average value is 0.004 mg/kg) > root vegetable (the average value is 0.003 mg/kg) > solanaceous vegetable (the average value is 0.001 mg/kg); the order of As concentration is root vegetable (the average value is 0.116 mg/kg) > solanaceous vegetable (the average value is 0.057 mg/kg) > leaf vegetable (the average value is 0.026 mg/kg). Significant positive correlation was found between the Cd concentration in vegetables and the Cd concentration in soil, and the linear equation was y = 0.065 + 0.012x. There was no significant correlation between the concentrations of Pb, Hg and As in vegetables and Pb, Hg and As in soil.

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Acknowledgements

This work was supported by Fund of China Agriculture Research System (CARS-23) and the National Key Research and Development Program of China (2018YFD0201200).

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Correspondence to Weihong Xu.

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Deng, J., Li, W., Xu, W. et al. Correlation and the concentrations of Pb, Cd, Hg and As in vegetables and soils of Chongqing, China. Environ Geochem Health 43, 2357–2376 (2021). https://doi.org/10.1007/s10653-020-00606-2

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  • DOI: https://doi.org/10.1007/s10653-020-00606-2

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