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Water 2017, 9(8), 611; https://doi.org/10.3390/w9080611

Aspects of Hexavalent Chromium Pollution of Thebes Plain Aquifer, Boeotia, Greece

Department of Water Resources and Agricultural Mechanics, Agricultural University of Athens, Iera Odos 75 Street P.C., 11855 Athens, Greece
Received: 12 June 2017 / Revised: 4 August 2017 / Accepted: 8 August 2017 / Published: 16 August 2017
(This article belongs to the Special Issue Heavy Metals and Potentially Toxic Elements (PTEs) in Water)
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Abstract

The present work focuses on the environmental problem of Thebes Plain—since considerable amounts of Cr (VI) have been reported—and tries to find out the reasons of such a phenomenon and the sources of the pollution. For this issue, a complete chemical analysis of 20 samples from the study area was conducted as well as an isotopic analysis of Cr and Sr isotopes. Hexavalent chromium pollution can be triggered by human pollutant activity or specific geological environments. Stable Cr isotopic analysis gave δ53Cr positive values in several samples which supports the second hypothesis, but the limitations of that theory do not allow safe conclusions in all cases. Nitrates and Sr ratios suggest fertilizer contamination and the presence of SiO2-leaching of silicate rocks. View Full-Text
Keywords: hexavalent chromium; strontium; isotopes; geogenic pollution; nitrates; leaching hexavalent chromium; strontium; isotopes; geogenic pollution; nitrates; leaching
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Koilakos, D.I. Aspects of Hexavalent Chromium Pollution of Thebes Plain Aquifer, Boeotia, Greece. Water 2017, 9, 611.

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