Carcinogenicity TestsCarcinogensMutagenicity TestsNeoplasms, ExperimentalMutagensCarcinogens, EnvironmentalSalmonella typhimuriumAntimutagenic AgentsBiotransformationRats, Inbred F344DNA AdductsPolycyclic CompoundsMicronucleus TestsToxicologyNitrosaminesBenzidinesBenzopyrenesBenzo(a)pyreneEthylene DibromideToxicity Tests, ChronicChrysenesHydrocarbons, BrominatedEpoxy Compounds