Perchlorate as an emerging contaminant in soil, water and food
Article
Article Title | Perchlorate as an emerging contaminant in soil, water and food |
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ERA Journal ID | 35098 |
Article Category | Article |
Authors | Kumarathilaka, Prasanna, Oze, Christopher, Indraratne, S. P. and Vithanage, Meththika |
Journal Title | Chemosphere |
Journal Citation | 150, pp. 667-677 |
Number of Pages | 11 |
Year | 2016 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0045-6535 |
1465-9972 | |
1879-1298 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.chemosphere.2016.01.109 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0045653516301242 |
Abstract | Perchlorate (ClO4-) is a strong oxidizer and has gained significant attention due to its reactivity, occurrence, and persistence in surface water, groundwater, soil and food. Stable isotope techniques (i.e., (18O/16O and 17O/16O) and 37Cl/35Cl) facilitate the differentiation of naturally occurring perchlorate from anthropogenic perchlorate. At high enough concentrations, perchlorate can inhibit proper function of the thyroid gland. Dietary reference dose (RfD) for perchlorate exposure from both food and water is set at 0.7 μg kg-1 body weight/day which translates to a drinking water level of 24.5 μg L-1. Chromatographic techniques (i.e., ion chromatography and liquid chromatography mass spectrometry) can be successfully used to detect trace level of perchlorate in environmental samples. Perchlorate can be effectively removed by wide variety of remediation techniques such as bio-reduction, chemical reduction, adsorption, membrane filtration, ion exchange and electro-reduction. Bio-reduction is appropriate for large scale treatment plants whereas ion exchange is suitable for removing trace level of perchlorate in aqueous medium. The environmental occurrence of perchlorate, toxicity, analytical techniques, removal technologies are presented. |
Keywords | Environmental exposure; Environmental monitoring; Oxidizer; Perchloric acid; Treatment technologies |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | National Institute of Fundamental Studies, Sri Lanka |
Occidental College, United States | |
University of Peradeniya, Sri Lanka | |
Library Services |
https://research.usq.edu.au/item/wv4xq/perchlorate-as-an-emerging-contaminant-in-soil-water-and-food
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