Water Quality of Nitra River, Slovakia - Analysis of Organic Material Pollution

Koivusalo, H., Varis, O., & Somlyody, L. (1992). Water Quality of Nitra River, Slovakia - Analysis of Organic Material Pollution. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-92-084

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Abstract

Water pollution and water quality management receives increasing attention in eastern European countries. More efficient waste water treatment is needed at the same time when the economy of those countries is not on a stable ground. Thus investigation is needed, how to set priorities and invest funds available to get optimal benefits in water quality management. In this study the role of the dischargers along Nitra river in Slovakia was analyzed based on mass balance of biochemical oxygen demand (BOD). Monthly data from 1990 were used. Because of scarce data and large uncertainties involved, a stochastic approach was taken using probability distributions in propagation of uncertainties. The river was subdivided into twelve stretches and the mass balances of each of them were closed using the BOD equation of the Streeter-Phelps model.

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