Chemical:
Arsenic (inorganic arsenic compounds), Benzene, Beryllium, Cadmium, Carbon disulfide, Chloroethane (Ethyl chloride), Chloroform, Chromium (hexavalent compounds), Dichloromethane (Methylene chloride), Ethylene dichloride (1,2-Dichloroethane), Lead, Nickel compounds, Silica, crystalline (airborne particles of respirable size), Tetrachloroethylene (Perchloroethylene), Toluene