... Buszewski1Department of Environmental Chemistry and Ecoanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarin St, 87-100 Toruń, Poland2Department of Chemistry, Faculty of Environmental ... are used more and more often to determine the level of environmental pollution. Being components of ecosystems, they can provide valuable information on the degree of environmental degradation ... determination of theforms, properties of semipermeable membranes, physio- air concentration of SO (Figure 4) based on the Hawk-logical condition of the organism, physical characteristics of the environment, ...