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Issue 6, 2012
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Chromium fractionation and speciation in natural waters

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It is common for leather industries to dump chromium-contaminated effluent into rivers and other bodies of water. Thus, it is crucial to know the impacts caused by this practice to the environment. A study on chromium partitioning and speciation, with determination at trace levels, was carried out in a potentially contaminated creek. Chromium fractionation and speciation was performed using a flow-injection preconcentration system and detection by flame atomic absorption spectrometry. High levels of this element were found in the particulate material (449–9320 mg kg−1), which indicates its compatibility with this fraction. The concentration of Cr(III) in the water samples collected ranged from 5.2–105.2 μg L−1. Cr(VI) was always below of the DL (0.3 μg L−1). Chromium accumulation observed in the sediment (873–1691 mg kg−1) may confirm contamination due to the long term release of contaminated effluents in the creek.

Graphical abstract: Chromium fractionation and speciation in natural waters

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Publication details

The article was received on 23 Nov 2011, accepted on 23 Mar 2012 and first published on 27 Mar 2012

Article type: Paper
DOI: 10.1039/C2EM10949B
Citation: J. Environ. Monit., 2012,14, 1559-1564
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    Chromium fractionation and speciation in natural waters

    C. D. Pereira, J. G. Techy, E. M. Ganzarolli and S. P. Quináia, J. Environ. Monit., 2012, 14, 1559
    DOI: 10.1039/C2EM10949B

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