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The production of particulate matter and harmful gases from different sources is a problem in the cities. An important role in air pollution is played by industry and road transport. Traffic volume continues to grow and road transport has the greatest impact on the atmosphere in the vicinity of the urban roads. Due to the dominant use of combustion engines, exhaust gases contain large amounts of gaseous pollutants as well as particulate matter. They particularly include a large amount of the finest PM fractions, w...