Chemical:
1,3-Butadiene, 1,6-Dinitropyrene, 1,8-Dinitropyrene, 1-Nitropyrene, 2-Nitrofluorene, 3,7-Dinitrofluoranthene, 3,9-Dinitrofluoranthene, 5-Methylchrysene, Acetaldehyde, Arsenic (inorganic arsenic compounds), Benzene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[j]fluoranthene, Benzo[k]fluoranthene, Benz[a]anthracene, Cadmium, Carbon monoxide, Chrysene, Cobalt [II] oxide, Dibenzo[a,h]pyrene, Dibenz[a,h]acridine, Dibenz[a,h]anthracene, Dibenz[a,j]acridine, Diesel engine exhaust, Formaldehyde (gas), Indeno [1,2,3-cd]pyrene, Lead, Lead and lead compounds, Nickel, Toluene