11 OH-PAHs were measured in 531 urine samples from mothers and their newborns.
The most frequently detected analyte with the highest concentration was 2-OH-NAP.
Chrysene-6-ol and benzo[a]pyrene-3-ol were not detected in any of analyzed samples.
ΣOH-PAHs in children's urine was1.6 × lower compared to their mothers.