IsocyanatesCyanatesHydroxyl RadicalPaintPolyurethanesToluene 2,4-DiisocyanateAir Pollutants, OccupationalAutomobilesOccupational ExposureThreshold Limit ValuesInhalation ExposureLacquerEnvironmental MonitoringRadioallergosorbent TestPolyhydroxyethyl MethacrylateAntisickling AgentsAsthma, OccupationalSkin AbsorptionHydroxidesRespiratory Protective DevicesNitrosourea CompoundsOccupational DiseasesRespiratory SystemChemical IndustryMetallurgyRats, Inbred F344IsothiocyanatesAerosolsImmunoglobulin EAsthmaBloodFree RadicalsLung