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