EN
The heavy metals cadmium, nickel, lead, molybdenum and zinc were determined in 19 samples of moss taken from 19 points situated in the Gliwice and Sanok areas. Samples (segregated, cleaned and powdered) were digested by the wet method in the microwave mineralizer. Differential pulse anodic stripping voltam- metry (DPASV) was used for determination of Cd, Ni, Mo, Pb and Zn. Oriental tobacco (CTA-ATL-1) as the certified reference material was applied in those investigations.