Chemical:
1,3-Butadiene, 2-Nitrofluorene, 3,7-Dinitrofluoranthene, 4-Nitrobiphenyl, 4-Nitropyrene, 5-Methylchrysene, 5-Nitroacenaphthene, 6-Nitrochrysene, Acetaldehyde, Aniline, Arsenic (inorganic arsenic compounds), Benzene, Benzo[a]pyrene, Benzo[j]fluoranthene, Benzo[k]fluoranthene, Beryllium, Beryllium and beryllium compounds, Cadmium, Cadmium and cadmium compounds, Carbon monoxide, Chromium (hexavalent compounds), Chrysene, Cobalt [II] oxide, Dibenzo[a,e]pyrene, Dibenzo[a,h]pyrene, Dibenzo[a,i]pyrene, Dibenzo[a,l]pyrene, Dibenz[a,h]anthracene, Dibenz[a,j]acridine, Diesel engine exhaust, Formaldehyde (gas), Indeno [1,2,3-cd]pyrene, Lead, Lead and lead compounds, Mercury, N-Nitrosodimethylamine, N-Nitrosomorpholine, Nickel, Toluene