An investigation on pollution caused by the changes of physico-chemical characteristic of Saqqez River

Saqqez River is one of the main source of water resources in Saqqez city that provides water needs for agriculture and drinking water in border river. Human sewage and agricultural resources of this river have pollutants. In this study, physicochemical process of river pollution in the Saqqez in 1387 and 1388 considered and previous research results in 1383 and 1384 and has been compared.  In total during these years the number of 80 samples from 14 stations during 20 sampling Each of the four stations, Tamogha station, Saqqez station, Kani jezhni and Arab oghly removed and the parameters of pH, BOD, COD, DO, TDS, EC, NO3 and ... has been Measurement and analysis.  Based on the results, because Saqqez station receiving human sewage and agricultural sources of pollutants in this river Border River provides. Urban wastewater pollution than many other stations are so severe that the increase in BOD5 station, especially in Low water seasons this show has.  Overall the situation self-refining river downstream stations BOD5 levels gradually comes down. Agricultural run-off, sewage, human waste and discharge of major pollutants of the river and the danger to the river are.