Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 242, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2022.113948
Keywords
Chromium isotope; Fractionation mechanism; Migration and transformation; Trace chromium pollution
Categories
Funding
- National Natural Science Foundation of China [41977289]
- Department of Science and Technology of Sichuan Province [2021JDTD0013]
- Everest Scientific Research Program [2020ZF11405]
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This article discusses the application of chromium isotopes in tracing pollution sources and monitoring Cr (VI) pollution. It also describes the main influencing factors controlling Cr isotope fractionation, chromium isotope analytical methods, and terrestrial Cr release. Chromium isotope tracing of contaminant sources is a new and advantageous method. Despite some uncertainties in practical applications, chromium isotope system holds great promise in the environmental aspects.
Chromium (Cr) is a toxic heavy metal that gives rise to environmental pollution and human risk. Chromium stable isotopes have a wide range of applications in both environmental field and earth science field. In this contribution, we focus on the application of the Cr isotope in both tracing pollution sources and monitoring Cr (VI) pollution. Meanwhile, we also provide a description of the main influencing factors controlling Cr isotope fractionation, chromium isotope analytical methods, and terrestrial Cr release. Chromium isotope tracing of contaminant sources is a new application method, it has a tremendous advantage in searching for the source of Cr pollution, which has not been covered in previous reviews. At the end of the article, the current status of Cr isotope applications in the paleo-environment is explained. Although there are still some uncertainties in practical applications, chromium isotope system shows great promise in the environmental aspects.
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