Chemical:
1,3-Butadiene, 1-Nitropyrene, 7H-Dibenzo[c,g]carbazole, Acetaldehyde, Aniline, Arsenic (inorganic arsenic compounds), Benzene, Benzo[a]pyrene, Cadmium, Carbon monoxide, Chromium (hexavalent compounds), Chrysene, Formaldehyde (gas), Lead, Nickel, Polychlorinated dibenzo-p-dioxins, Polychlorinated dibenzofurans