The role of the water quality monitoring network on the upper streach of the Danube river in Hungary

Horváth, Lajos and Bartalis, Éva T. (1997) The role of the water quality monitoring network on the upper streach of the Danube river in Hungary. MAGYAR VÍZIVAD KÖZLEMÉNYEK, 3. pp. 19-30. ISSN 1416-1389 (nyomtatott); 1419-6107 (elektronikus)

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Abstract

After more than 25 years of continuous regular monitoring, it became known that the changes in water quality reflect the natural and geo-economic conditions of the Danube watershed. The scientific understanding of the present complicated relationships among the attributes of the water has been facilitated. In this paper, the state of water quality in the Hungarian upper stretch of the Danube and its tributary waters is introduced. Special attention is paid to environmental factors influencing the productivity of the waters, such as: * loading of external and internal organic material, * oxygen supply for the river, * elements of nitrogen and phosphorus contents and, * the quality and quantity characteristics of the primary production of micro vegetation, thebasis of the food chain.

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