IsocyanatesUnited States Occupational Safety and Health AdministrationCyanatesPolyurethanesToluene 2,4-DiisocyanatePaintRhodiumAir Pollutants, OccupationalButylaminesTear GasesOccupational ExposureIndolizidinesAutomobilesOccupational DiseasesEnvironmental MonitoringInhalation ExposureMustard CompoundsAlveolitis, Extrinsic AllergicAlkynesAccidents, OccupationalMaximum Allowable ConcentrationIndustryThreshold Limit ValuesCoroners and Medical ExaminersFacility Regulation and ControlChemical IndustryCyclization