Chemical:
1,3-Butadiene, 1,6-Dinitropyrene, 1,8-Dinitropyrene, 1-Nitropyrene, 4-Nitropyrene, 6-Nitrochrysene, Acetaldehyde, Arsenic (inorganic arsenic compounds), Benzene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[j]fluoranthene, Benzo[k]fluoranthene, Benz[a]anthracene, Carbon monoxide, Carbon tetrachloride, Chloroform, Chromium (hexavalent compounds), Chrysene, Dibenz[a,h]anthracene, Dichloromethane (Methylene chloride), Diesel engine exhaust, Formaldehyde (gas), Indeno [1,2,3-cd]pyrene, Lead, Lead and lead compounds, Nickel, Nickel compounds, Polychlorinated dibenzofurans, Radionuclides, Thorium dioxide, Toluene