| genotoxicity of polycyclic aromatic hydrocarbons and nitro-derived in respirable airborne particulate matter collected from urban areas of rio de janeiro (brazil). | air pollution toxic effects are mainly attributed to small inhalable particulates with an aerodynamic diameter of less than 2.5 µ m (pm 2.5). our objective was to investigate mutagenic and clastogenic activity in pm samples collected in rio de janeiro. samples were collected using a high-volume sampler at three sites: with low traffic and (2) and (3) with a heavy traffic. six polycyclic aromatic hydrocarbons (pahs) were quantified by gas chromatography/mass spectrometry (gc/ms). salmonella typhi ... | 2013 | 23738331 |