Szukana fraza: [Abstract = "The aim of this study is to assess the quality and the state of the organic pollution of surface water in the Kébir wadi east, based on the Water Quality Index \(WQI\) and the Organic Pollution Index \(OPI\) during six sampling campaigns carried out between April and September of the year 2011. Seven stations were studied along the Kébir wadi east downstream from the Mexa Dam."]

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