Chemical:
1,6-Dinitropyrene, 1,8-Dinitropyrene, 1-Nitropyrene, 4-Nitropyrene, 6-Nitrochrysene, Acetaldehyde, Benzene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[j]fluoranthene, Benzo[k]fluoranthene, Carbon monoxide, Chromium (hexavalent compounds), Chrysene, Dibenz[a,h]anthracene, Diesel engine exhaust, Formaldehyde (gas), Indeno [1,2,3-cd]pyrene, Polychlorinated dibenzo-p-dioxins, Polychlorinated dibenzofurans, Toluene