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Assessing groundwater quality in Greece based on spatial and temporal analysis
Zoi Dokou1, Nektarios N Kourgialas2, George P Karatzas2
1School of Environmental Engineering, Technical University of Crete, Chania, Greece. zoi.dokou@enveng.tuc.gr.
Environmental Monitoring and Assessment
|November 28, 2015
Summary
Groundwater contamination from industrial growth and agriculture is a growing concern in Greece. This study maps vulnerable areas using heavy metal data and geostatistics to aid remediation efforts and protect public health.
Area of Science:
- Environmental Science
- Hydrogeology
- Geochemistry
Background:
- Industrial growth, urban expansion, and intensive agriculture in Greece have led to increased groundwater contamination.
- Identifying groundwater vulnerability is crucial for effective remediation strategies and public health protection.
Purpose of the Study:
- To analyze the temporal and spatial distribution of groundwater contamination by heavy metals across Greece.
- To identify regions with high groundwater contamination rates.
- To map contaminant levels and exceedance probabilities in representative aquifers.
Main Methods:
- Utilized an extensive contamination database from monitoring wells (2000-2008).
- Applied geostatistical techniques, including kriging, co-kriging, and indicator kriging.
- Developed groundwater contamination maps showing contaminant values and exceedance probabilities.
Main Results:
- Identified spatial and temporal patterns and trends in groundwater contamination across Greece.
- Highlighted specific regions with higher groundwater contamination rates.
- Generated detailed maps for representative contaminated aquifers.
Conclusions:
- Geostatistical mapping provides a valuable tool for water policy makers and managers.
- The study aids in the decision-making process for groundwater remediation and protection.
- Understanding contaminant distribution is key to addressing Greece's groundwater quality issues.
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