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Title: Thallium isotopic compositions as tracers in environmental studies: a review
Authors: Zhong, Qiaohui
Qi, Jianying
Liu, Juan
Wang, Jin
Lin, Ke
Ouyang, Qi'en
Zhang, Xian
Wei, Xudong
Xiao, Tangfu
El-Naggar, Ali
Rinklebe, Jörg
Keywords: Engineering::Environmental engineering
Issue Date: 2022
Source: Zhong, Q., Qi, J., Liu, J., Wang, J., Lin, K., Ouyang, Q., Zhang, X., Wei, X., Xiao, T., El-Naggar, A. & Rinklebe, J. (2022). Thallium isotopic compositions as tracers in environmental studies: a review. Environment International, 162, 107148-.
Journal: Environment International 
Abstract: Thallium is a highly poisonous heavy metal. Since Tl pollution control has been neglected worldwide until the present, countless Tl pollutants have been discharged into the environment, endangering the safety of drinking water, farmland soil, and food chain, and eventually posing a great threat to human health. However, the source, occurrence, pathway and fate of Tl in the environment remains understudied. As Tl in non-contaminated systems and from anthropogenic origin exhibits generally different isotopic signatures, which can provide fingerprint information and a novel way for tracing the anthropogenic Tl sources and understanding the environmental processes. This review summarizes: (i) the state-of-the-art development in highly-precise determination analytical method of Tl isotopic compositions, (ii) Tl isotopic fractionation induced by the low-temperature surface biogeochemical process, (iii) Tl isotopic signature of pollutants derived from anthropogenic activities and isotopic fractionation mechanism of Tl related to the high-temperature industrial activities, and (iv) application of Tl isotopic composition as a new tracer emerging tracer for source apportionment of Tl pollution. Finally, the limitations and possible future research about Tl isotopic application in environmental contamination is also proposed: (1) Tl fractionation mechanism in different environmental geochemistry processes and industrial activities should be further probed comprehensively; (2) Tl isotopes for source apportionment should be further applied in other different high Tl-contaminated scenarios (e.g., agricultural systems, water/sediment, and atmosphere).
ISSN: 0160-4120
DOI: 10.1016/j.envint.2022.107148
Rights: © 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EOS Journal Articles

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