CokePyrenesPolycyclic CompoundsCoalPolycyclic Hydrocarbons, AromaticCarbonated BeveragesExtraction and Processing IndustryHydrocarbons, AromaticOccupational ExposureSodium HydroxideSteelMetallurgyCalcium CompoundsAir Pollutants, OccupationalIndustryCarcinogens, EnvironmentalBenzeneRespiratory Tract NeoplasmsCoal Tar