Groundwater quality assessment of the Limnos Island Volcanic Aquifers, Greece

Limnos Island in Greece, which has been the subject of extensive hydrogeological research, contains confined volcanic aquifers that overlie impermeable flysch. Groundwater salinization is usually the effect of seawater intrusion, and results from a combination of factors such as low annual areal pre...

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Bibliographic Details
Published inWater environment research Vol. 85; no. 5; p. 422
Main Authors Panagopoulos, George, Panagiotaras, Dionisios, Giannoulopoulos, Panagiotis
Format Journal Article
LanguageEnglish
Published United States 01.05.2013
Subjects
Environmental Monitoring - methods
Geological Phenomena
Greece
Groundwater - chemistry
Islands
Water Quality - standards
Greece
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Summary:Limnos Island in Greece, which has been the subject of extensive hydrogeological research, contains confined volcanic aquifers that overlie impermeable flysch. Groundwater salinization is usually the effect of seawater intrusion, and results from a combination of factors such as low annual areal precipitation and exploitation of aquifers for civil, commercial, and agricultural purposes. Areas with intense agricultural activities have also increasingly observed these effects. A geochemical evaluation on the basis of multiple ion (Ca2+, Mg2+, Na+, K+, HCO3-, Cl-, SO4(2-), NO3-) concentrations and physicochemical parameters distribution revealed that ion exchange is the dominant hydrogeochemical process. However, the enrichment of groundwater in potassium and magnesium results from rock and mineral weathering and dissolution.
ISSN:1061-4303
DOI:10.2175/106143012X13373575831439