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Impact of roadway particulate matter on deposition of pollutants in the vicinity of main roads

Kłos A., Rajfur M., Wacławek M., Wacławek W.

Environment Protection Engineering

2009

Vol. 35, nr 3

105-121

This paper presents the results of biomonitoring studies involving the assessment of the effect of traffic on the deposition of heavy metals (Cd, Cu, Mn, Ni, Pb and Zn). In our experiment, mosses and lichens growing in the vicinity of a major road were exposed to traffic for over 100 days. The increase of metal concentration was determined using Relative Accumulation Factors. It was discovered that the concentrations of Zn, Cu, Ni, Pb and Zn decreased along with the distance from the road in the windward direction. In the opposite direction, the highest increase in pollutants (Zn, Pb and Cd) was observed over the distance of 50-150 m, while Cu and Ni concentration is the highest close to the road. No relevant variation in the concentration of Mn was observed. For the purposes of comparison the concentrations were also determined in soil.