Rachid Sammoudi
ABSTRACT
The present study aims to develop a quality index model of spring waters (WQI-S). Based on the principal component analysis, the potential indicators were calculated. This model has been applied to determine the springs water quality of Taanzoult plain (Aguelmam Sidi Ali RAMSAR site), using physicochemical (13 parameters) and bacteriological analysis results (2 parameters), which are monitored of 4 stations during 12 months (January to December 2017). The compilation of the WQI-S allowed assessing the quality of the waters in Taanzoult plain with quality level compared to the empirical approach of the evaluation grid according to Moroccan standards. Water quality varies with the seasons and kind of use. It can be mainly considered good for spring water of drink with minimum score of 72 and good to medium with minimum score of 65 for source, exclusively, used for livestock watering. The strength of WQI-S lies in its ability to integrate a reduced parameters number deemed relevant for the assessment of water quality in each particular case. It might, therefore, maximize accuracy in determining water quality at lower cost and permit to the regulation authorities the opportunity to maximize the cost-effectiveness of water pollution monitoring missions over time.
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