Abstract
Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) may be formed during combustion of Diesel and gasoline rud and may be produced in gas-phase reactions of polycyclic aromatic hydrocarbons (PAHs) with oxides of nitrogen. These compounds can form a significant fraction olthc mainly direct-acting mutagenie compounds present in extracts of ambient air particles. Using own analytical method of nitro-PAHs determination, concentrations or total PAHs, nitro- and dinitro-PAHs in urban and non-urban area of three cites of Upper Silesia in Poland were measured. The dependence between concentration of PAHs and nitro-pAHs in urban and non-urban area as well as their distribution depending on roadway distance were searched. The study showed a significant influence of road transport on the levels ofnitro-PAHs concentration.
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