Influence of Airborne Sulphur Dioxide on Totals Concentrations in Linden and Pine

Bor and the surroundings (Eastern Serbia) have a poor air quality, due to emissions from the miningmetallurgical complex for copper production. Considering the processing and smelting of sulphide ores, one of the dominant air pollutant is SO2, which causes acidification of waters and soil, affecting vegetation. Biomonitoring of air pollution was conducted in order to examine the effect of the increased SO2 concentrations in the air on the total S concentrations in linden and pine. Roots, branches and leaves/needles were sampled in the urban-industrial, rural and background zone. The obtained S concentrations showed that in the condition of increased air pollution pine roots and branches are better for biomonitoring of total S than same parts of linden. Nevertheless, linden leaves contained higher S concentrations than pine needles. According to the Enrichment factors, the most endangered zone in Bor is urban-industrial (at sampling sites 0.5 km and 1 km away from the copper smelter).