IsocyanatesCyanatesPolyurethanesToluene 2,4-DiisocyanatePaintRhodiumAir Pollutants, OccupationalButylaminesTear GasesIndolizidinesOccupational ExposureAutomobilesInhalation ExposureEnvironmental MonitoringMustard CompoundsOccupational DiseasesAlveolitis, Extrinsic AllergicAlkynesChemical IndustryCyclizationAerosols