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Spatial and temporal variation of the water quality of an intermittent river, Oued Fez (Morocco)

机译：间歇性河流Oued Fez（摩洛哥）水质的时空变化

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摘要

This study aims to characterise and quantify the pollutant concentrations and fluxes in various locations of the Oued Fez hydrological network and assess their impact on the Sebou River, which is considered as a national priority zone in Morocco. Eight observation sites have been set up to quantify the temporal and spatial variability of pollutant fluxes in the river and to rank water and pollutant contributors. Water quality is evaluated through nutrients (total nitrogen and total phosphorus essentially) and heavy metals (essentially chromium). The results show that the river is highly polluted: the measured concentration values exceed international water quality standards for all the studied elements and indicate that the river is a possible threat to the downstream water bodies of high economic interest.
机译：这项研究旨在表征和量化Oued Fez水文网络各个位置的污染物浓度和通量，并评估其对Sebou河的影响，Sebou河被视为摩洛哥的国家重点保护区。已经建立了八个观测点，以量化河流中污染物通量的时间和空间变异性，并对水和污染物的贡献者进行排序。通过养分（基本上是总氮和总磷）和重金属（基本上是铬）来评估水质。结果表明，河流受到了严重污染：所有研究要素的测得浓度值均超过了国际水质标准，表明该河流可能对具有高度经济意义的下游水体构成威胁。

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