Correlation analysis of impact of natural parameters on water quality of the river danube near Novi Sad for the period 2004-2011

Abstract

The river Danube belongs to the Black Sea basin and it flows through ten European countries. It also flows through 35 larger cities including Novi Sad in Serbia. The water quality of the Danube is one of significant factors that are taken into consideration in evaluation of sustainability of the development of this region and it is controlled by complex anthropogenic activities and natural factors. With the assistance of correlation analysis, the paper studied the impact of natural factors such as water temperature, air temperature and precipitation rate on certain parameters indicating the water quality. Based on the results of the study it has been determined that natural factors affect changes in water quality throughout the year and that water temperature affects most the concentration of nitrogen oxide.