The impact of human activities in the Malia coastal area (Crete) on groundwater quality |
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| Authors: | N J Lambrakis |
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| Institution: | (1) University of Patras, Department of Geology, 26100 Rio, Patras, Greece Tel.: +61 992971, GR |
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| Abstract: | The evaluation of the long-term effects of seawater intrusion into the aquifers due to negative water balance and nitrate
pollution of drinking-water quality due to human activities requires detailed knowledge of both the transport of the chemical
constituents and the geochemical processes within aquifers. Hydrogeological and hydrochemical studies in the unconfined aquifer
of Malia have provided the necessary data to define the areas at increased risk from these phenomena. The solution of the
second Fick's low under given boundary conditions gave an estimate of the propagation of groundwater pollution by NO3
–. Additionally, in order to simulate the ion concentration changes during a period, for example a period of positive water
balance or refreshening, groundwater transport and cation exchange reactions were modelled using the code PHREEQM.
Received: 25 July 1997 · Accepted: 4 November 1997 |
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| Keywords: | Groundwater pollution Transport of chemical constituents Cation exchange reactions |
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