Original paper

The information obtained upon measuring the oxygen concentration and the oxidation-reduction potential in water biotopes

Dechev, G.; Matveeva, E.; Yordanov, S.; Hiebaum, G.

Abstract

The present investigation of the distribution of the oxygen concentration and the value of the oxidation-reduction potential (ORP) in the biotopes shows that waters with different saprobity have characteristic curves which represent only qualitative characteristics of their state. Different types of experimental curves of diurnal changes in the oxygen concentration depending on the saprobity are presented and discussed. The possibilities provided by the determination of the oxygen concentration and ORP are considered on the basis of theoretical studies and experimental results, and the necessity for dynamic descriptions of the water basins as open systems is substantiated.

Keywords

oxidation-reduction potentialoxygen concentration