Baseline concentrations and quantitative health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in relation to particle grain size in street dust of Warsaw Poland

Total concentrations, toxicity, and health risks of 16 polycyclic aromatic hydrocarbons (PAH) in street dust from Warsaw (Poland) in 6 granulometric fractions were investigated. Street dust was collected from 149 sampling points distributed among Area 1 (central districts, left bank of the Vistula River, mostly traffic-related pollution) and Area 2&3 (suburb area, mostly residential, right bank of the river). Street dust was investigated before (“all”) and after separating into 5 size-dependent samples: (1–0.8 mm) “0.8”, (0.8–0.6 mm) “0.6”, (0.6–0.4 mm) “0.4”, (0.4–0.2 mm) “0.2”, and (below 0.2 mm) “