Occurrence and Distribution of Hexavalent Chromium in Ground and Surface Waters in Cyprus

The origin and distribution of hexavalent chromium, Cr (VI) over four seasonal cycles was investigated through a conceptual model that included three aquifer systems in Cyprus. An extensive water sampling grid covered two sea water intruded coastal aquifers, namely the Kokkinochoria (A1) and Kiti-Pe...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2021-03, Vol.106 (3), p.428-434
Main Authors: Zissimos, Andreas M., Christoforou, Irene C., Christofi, Christos, Rigas, Michael, Georgiadou, Egli C., Christou, Anastasis
Format: Article
Language:English
Subjects:
Aquatic Pollution
Aquifer systems
Aquifers
Chemical analysis
Chromium
Chromium - analysis
Coastal aquifers
Coastal waters
Cyprus
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Groundwater
Hexavalent chromium
Isotopes
Isotopic enrichment
Massifs
Meteoric water
Pollution
Saline water intrusion
Salt water intrusion
Seawater
Soil Science & Conservation
Stable isotopes
Surface water
Urbanization
Waste Water Technology
Water analysis
Water Management
Water Pollutants, Chemical - analysis
Water Pollution Control
Water sampling
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Summary:The origin and distribution of hexavalent chromium, Cr (VI) over four seasonal cycles was investigated through a conceptual model that included three aquifer systems in Cyprus. An extensive water sampling grid covered two sea water intruded coastal aquifers, namely the Kokkinochoria (A1) and Kiti-Pervolia (A2) aquifers and the Troodos massif (A3). Analytical results give a first insight to the presence of Cr (VI) in Cyprus ground and surface waters. The highest Cr (VI) value of 26 μg L −1 is observed in the Troodos area (A3) where Cr(VI) is detected in all sampled water systems (surface and ground/spring). Nonetheless, the highest median values of 4.6 and 4.5 μg L −1 are observed in the Kokkinochoria (A1) and Kiti-Pervolia (A2) study areas respectively, where the local aquifers are under increased pressure from agriculture, urbanization and seawater intrusion. Stable isotopes were used to discern the effect of return irrigation and seawater intrusion. Stable isotope analyses from Troodos samples show two distinct groups of meteoric and near meteoric waters whereas isotopically enriched water is shown to correspond to the Kiti and Kokkinochoria area.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-020-02867-0