Cadmium isotopes as tracers in environmental studies: A review

Cadmium isotopic compositions in non-contaminated systems and anthropogenic sources of Cd generally have different isotopic signatures. Cadmium isotopes, as a novel tracer, can be useful for fingerprinting the anthropogenic Cd sources, providing a promising source tracing technique in environmental...

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Bibliographic Details
Published in:The Science of the total environment Vol. 736; p. 139585
Main Authors: Zhong, Qiaohui, Zhou, Yuchen, Tsang, Daniel C.W., Liu, Juan, Yang, Xiao, Yin, Meiling, Wu, Shijun, Wang, Jin, Xiao, Tangfu, Zhang, Zhaofeng
Format: Journal Article
Language:English
Published: Elsevier B.V 20.09.2020
Subjects:
cadmium
Cadmium isotopes
environment
Environmental tracer
Fractionation mechanism
geochemistry
isotope fractionation
Isotopic variation
Fractionation mechanism
Environmental tracer
Isotopic variation
Cadmium isotopes
ISSN:0048-9697, 1879-1026, 1879-1026
Online Access:Get full text
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Summary:Cadmium isotopic compositions in non-contaminated systems and anthropogenic sources of Cd generally have different isotopic signatures. Cadmium isotopes, as a novel tracer, can be useful for fingerprinting the anthropogenic Cd sources, providing a promising source tracing technique in environmental studies. This review presents: (i) analytical techniques for Cd isotopic composition; (ii) isotopic signatures of Cd derived from anthropogenic activities; (iii) isotopic compositions of Cd in the industrial-impacted environmental samples; (iv) cadmium isotopic fractionation induced by geochemical process. Finally, the perspectives of using Cd isotopic compositions in environmental studies are also briefly discussed. [Display omitted] •The analytical methods for isotopic composition of cadmium (Cd) are reviewed.•Cd isotopic compositions in major Cd pollutants are summarized.•Cd isotopes are powerful to trace pollution in different environmental systems.
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ISSN:0048-9697
1879-1026
1879-1026
DOI:10.1016/j.scitotenv.2020.139585