Stable isotopic signature of cadmium in tracing the source, fate, and translocation of cadmium in soil: A review

Bin Liang; Qianting Ye; Zhenqing Shi

doi:10.1016/j.jhazmat.2024.134531

Stable isotopic signature of cadmium in tracing the source, fate, and translocation of cadmium in soil: A review

J Hazard Mater. 2024 May 7:472:134531. doi: 10.1016/j.jhazmat.2024.134531. Online ahead of print.

Authors

Bin Liang¹, Qianting Ye¹, Zhenqing Shi²

Affiliations

¹ School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China.
² School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China. Electronic address: zqshi@scut.edu.cn.

PMID: 38728863
DOI: 10.1016/j.jhazmat.2024.134531

Abstract

Cadmium (Cd), one of the most severe environmental pollutants in soil, poses a great threat to food safety and human health. Understanding the potential sources, fate, and translocation of Cd in soil-plant systems can provide valuable information on Cd contamination and its environmental impacts. Stable Cd isotopic ratios (δ^114/110Cd) can provide "fingerprint" information on the sources and fate of Cd in the soil environment. Here, we review the application of Cd isotopes in soil, including (i) the Cd isotopic signature of soil and anthropogenic sources, (ii) the interactions of Cd with soil constituents and associated Cd isotopic fractionation, and (iii) the translocation of Cd at soil-plant interfaces and inside plant bodies, which aims to provide an in-depth understanding of Cd transport and migration in soil and soil-plant systems. This review would help to improve the understanding and application of Cd isotopic techniques for tracing the potential sources and (bio-)geochemical cycling of Cd in soil environment.

Keywords: Cd Associations; Cd Isotopes; Cd Translocation; Contamination Sources; Soil-Plant System.

Publication types

Review