Heavy metal pollution characteristics and health risk assessment of a high risk site in Jiangsu Province

DOI

10.2991/978-94-6463-415-0_91How to use a DOI?

Keywords

Jiangsu; High-risk legacy sites; heavy metal pollution; Ni; risk assessment

Abstract

Taking a high-risk legacy site (the closed electroplating enterprises) in Jiangsu as the research object, the single pollution index method and the comprehensive pollution index method were used to evaluate the soil heavy metal pollution status, and the pollution of heavy metal Ni in the site was clarified. The spatial distribution of Ni in soil was discussed according to Kriging interpolation method, and the health risk assessment of heavy metals in soil was carried out based on HJ 25.3–2019. The results show that the heavy metal pollution in the site is mainly affected by the electroplating process, and the heavy metal Ni pollution decreased gradually with the increase of the distance from the pollution source and the vertical depth. According to the results of ecological risk assessment, the carcinogenic risk of heavy metal Ni in the soil within 3 m depth of the large electroplating workshop in the site is unacceptable, and the pollution degree beyond 3m depth is significantly reduced. The site needs to be controlled or adopt engineering measures such as soil remediation. Studies have shown that the existence of clay layer in the site can effectively reduce the downward migration of pollutants and protect the deep soil. Therefore, we should pay attention to the distribution of clay layer in the later project implementation process to ensure the safety of deep soil and groundwater.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Quanlong Zhu
AU  - Yu Song
AU  - Zhifeng Guo
AU  - Wenjie Xu
AU  - Shuling Zhang
PY  - 2024
DA  - 2024/05/14
TI  - Heavy metal pollution characteristics and health risk assessment of a high risk site in Jiangsu Province
BT  - Proceedings of the 2023 9th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2023)
PB  - Atlantis Press
SP  - 850
EP  - 859
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-415-0_91
DO  - 10.2991/978-94-6463-415-0_91
ID  - Zhu2024
ER  -