BenzeneBenzene DerivativesSorbic AcidTolueneHydroquinonesXylenesPhenolOccupational ExposurePetroleumCatecholsAir Pollutants, OccupationalMaximum Allowable ConcentrationBiodegradation, EnvironmentalHydrocarbons, AromaticEnvironmental MonitoringHydrocarbonsChemical IndustryPhenolsChlorobenzenesCyclohexanes