>>3 contains 40+ known carcinogens, inlcuding arsenic. nickel, chromium, cadmium, lead, polonium-210, vinyl chloride, formaldehyde, benzanthracene, benzofouoranthene, benzofluoranthene, benzofluoranthene, benzopyrene, chrysene, dibenzanthracene, dibenzopyrene, dibenzopyrene, indenopyrene, 5-methylchrysene, quinoline, dibenzacridine, dibenzacridine, 7H-dibenzocarbazole, N-nitrosodimethylamine, N-nitrosoethylmethylamine, N-nitrosodiethylamine, N-snitrosopyrrolidine, N-nitrosodimethylamine, N-nitrosonornicotine, N-nitrosoanabasine, N-nitrosomorpholine, 2-toluidine, 2-naphthylamine, 4-aminobiphenyl, acetaldehyde, crotonaldehyde, benzene, acrylonitrile, 1,1-dimethylhydrazine, 2-nitropropane, ethylcarbamate, hydrazine and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone.