Dynamics of improvement of some physico-chemical parameters in Lumbardhi River of Prizren from urban water discharges for the year 2018 compared to the year 2017

. The rapid growth of our city Prizren and urban problems, especially those of sewage, resulted in the pollution of the Lumbardhi River, since urban wastewater was not treated in advance until the year 2017, therefore in 2018 the collectors were built aimed at mitigating river pollution. Therefore, the purpose of the paper is to compare and evaluate some basic physico - chemical pollution indicators without treatment of urban waste water in 2017 with those treated with collectors of the year 2018. The physico - chemical parameters to be treated are: Content of Dissolved Solid Substances in Water (DSS) that limits the use of water for irrigation and industrial purposes, BOD5 level that is not suitable for the life of living things that require oxygen, Chemical Oxygen Demand (COD) that is a parameter which is used to measure the content of organic substances in urban and industrial water remains, and the total organic carbon (TOC). The monitoring points of the physical and chemical analyzes in our study in Lumbardhi are: Entrance to the city - Marashi (L1), City Center - Municipal Assembly (L2) and City Suburb - Vlashnje (L3).