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ISSN: 2376-1318

Vitamins & Minerals
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Research Article

Trivalent Chromium: A Neglected Latent Contaminant

Zhaohui Wang*, Renlan Liu and Jianshe Liu
State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
Corresponding Author : Dr. Zhaohui Wang
Associate professor, College of Environmental Science and Engineering Donghua University, 201620, China
Tel: +86-21-67792557
E-mail: [email protected]
Received April 28, 2012; Accepted April 28, 2012; Published May 02, 2012
Citation: Wang Z, Liu R, Liu J (2012) Trivalent Chromium: A Neglected Latent Contaminant. Vitam Trace Elem 1:e115. doi:10.4172/2167-0390.1000e115
Copyright: © 2012 Wang Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

As the 21st most abundant element in earth’s crust, chromium has been extensively used in industrial activities such as paint pigments and leather tanning. As a consequence, there is a continual influx of chromium contaminants into the environment, thereby posing a serious environmental problem. Chromium exhibits a wide range of possible oxidation states, where trivalent chromium [Cr (III)] is most stable energetically, but Cr (III) and Cr (VI) are most commonly observed in aquatic environment. Cr (VI) species are of great environment concern due to their well-known toxicity, carcinogentic properties and high mobility in environmentally relevant media. Cr (III) is generally regarded as benign and even essential for human and animal, since trace amounts of Cr (III) is required for sugar and lipid metabolism.In this context, it is a common strategy in environmental remediation to reduce toxic Cr (VI) to Cr (III) by various redox reactions. Cr (III) is thought to be immobilized by precipitating into insoluble Cr (III) hydroxides

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