Elena Vladimirovna Stepanova, Cand. Sc. (Geogr.), Senior Lecturer, Department of the Environment Chemistry, Russian State Hydrometeorologic University. Scientific areas of focus: hydrochemistry, geochemistry, eutrophication and chemical pollution of natural waters.
Grigorii Tevelevich Frumin, Dr. Sc. (Chem.), Prof., Department of Ecology, Russian State Hydrometeorologic University. Scientifi c areas of focus: toxicology, eutrophication and chemical pollution of natural waters, risk assessment.
Original Russian Text © E.V. Stepanova, G.T. Frumin, 2010, published in Ekologicheskaya Khimiya, 2010, Vol. 19, no. 1, pp. 31–37.