Assoc. prof.; chemist; main research interests - circulation of phosphorus in lakes and their catchments; since 1972 the employee of the Hydrobiological Station of Institute of Ecology PAS; in the period of 1983-1997 Head of the Hydrobiological Station; after the liquidation of the Institute, a researcher at the University of Natural Sciences and Humanities in Siedlce; Head of the Department of Ecology and Environmental Protection