Evaluation of water quality and bed load sediment contamination of Qareaqhaj River to heavy metals, Kahfr Watershed, Fars province

Evaluation of water quality and bed load sediment contamination of Qareaqhaj River to heavy metals, Kahfr Watershed, Fars provinceIn order to determine the water quality and sediments contamination of Ghare-Aghaj River 10 sediment samples and 10 water samples (in 2 periods) were taken and analyzed. The analysis of physico-chemical diagrams shows that the water type of river is sulfate-calcific and river water settele in the C3S1 category. According to the concentration maps drawn by the GIS software, the mean concentration of most of elements increases from the upstream to the downstream, but this increase does not reach the level of pollution and is not alarming. Statistical studies on the physicochemical parameters of water samples and heavy metals show that EC values are strongly correlated with TDS, Hco3, chlorine and magnesium. Statistical studies showed that there is a high correlation between nickel, iron, zinc, copper, iron and cobalt elements, which shows the same stability of these metals in sediment samples studied.