Classification of waters of the Bosna river based on physical and chemical quality indicators in the area of the city of Sarajevo

Abstract

The subject of this study is the analysis of physical and chemical parameters of the Bosna River in order to determine the current status of this watercourse (from the Bosna river source to the water gauging station Reljevo) in Ilidza Municipality and part of Novi Grad Sarajevo Municipality and group classification of the watercourse according to existing legislation of Bosnia and Herzegovina and EU. The Bosna River is the main recipient of waste water of the central part of Sarajevo (Stari Grad, Centar, Novi grad and Novo Sarajevo Municipalities). In addition, the city dumping site Smiljevici, with its leachate waters significantly affects the quality of the Bosna River. In a part of the concerned basin of the Bosna River some studies were carried out only on the watercourse (seven measuring profiles) since there are no municipal drains in this section. Based on the results of analysis of physico-chemical parameters conducted between 2010 - 2013, the comparison with the limits prescribed by the Regulation on Hazardous and Harmful Substances in Water (Federation of Bosnia and Herzegovina Official Gazette No. 43/2007) and the Guidelines of the International Commission for the Protection of Danube River - ICPDR, Table 3 has been performed. From Water Quality Classification used for TNMN purposes, for water flows II Class, it is evident that some of the parameters significantly exceed the maximum permissible concentration (MPC) especially on the measuring profiles after the inflow of tributaries, especially the Miljacka River as well as the Lepenica River, which, with its sanitary-fecal waste waters and leachate waters from Smiljevići dumping site, impacts the quality of the Bosna River.