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Processes affecting groundwater quality in arid zones: The case of the Bou-Areg coastal aquifer (North Morocco)

•Investigation on the main sources of salinization in the Bou-Areg aquifer.•Salinity derives from dissolution, water–rock interaction and agricultural inputs.•Manure, septic effluents and fertilizers are the main causes of human pollution.•Discharge of polluted waters in the Lagoon of Nador is alter...

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Bibliographic Details
Published in:Applied geochemistry 2013-07, Vol.34, p.181-198
Main Authors: Re, V., Sacchi, E., Martin-Bordes, J.L., Aureli, A., El Hamouti, N., Bouchnan, R., Zuppi, G.M.
Format: Article
Language:English
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Summary:•Investigation on the main sources of salinization in the Bou-Areg aquifer.•Salinity derives from dissolution, water–rock interaction and agricultural inputs.•Manure, septic effluents and fertilizers are the main causes of human pollution.•Discharge of polluted waters in the Lagoon of Nador is altering its quality.•Saline water intrusion from the lagoon in the aquifer can be considered negligible. The coastal aquifer of Bou-Areg (Morocco) has been studied to identify the main processes causing groundwater salinization, using a multi tracer (general chemistry and isotopes – δ2H, δ18O, δ13C, δ15NNO3, δ18ONO3) geochemical approach. Groundwater is characterized by the widespread occurrence of brackish waters (TDS
ISSN:0883-2927
1872-9134
DOI:10.1016/j.apgeochem.2013.03.011