title: [Proposal for threshold limit values for organic solvent concentrations in alveolar air].
abstract: The n-hexane concentration was determined in upper factory environmental air and in worker alveolar air. The relationship between the hexane alveolar concentration, and the hexane environmental concentration (Ca/Ci) was found to be steady during the 4,5 hours exposure and independent of the alveolar ventilation and hexane environmental concentration. These results suggest the hypothesis that alveolar TLV's can be fixed for hexane and other solvents.
mesh_terms: D000393:Air Pollutants / Q000506:poisoning*; D000395:Air Pollutants, Occupational / Q000506:poisoning*; D000440:Butanols / Q000032:analysis / Q000506:poisoning; D004781:Environmental Exposure; D006801:Humans; D008452:Maximum Allowable Concentration; D011650:Pulmonary Alveoli; D012997:Solvents / Q000032:analysis / Q000506:poisoning*; D013343:Styrenes / Q000032:analysis / Q000506:poisoning; D014050:Toluene / Q000032:analysis / Q000506:poisoning; D014240:Trichloroethanes / Q000032:analysis / Q000506:poisoning; D014241:Trichloroethylene / Q000032:analysis / Q000506:poisoning
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D000440:Butanols; D012997:Solvents; D013343:Styrenes; D014240:Trichloroethanes; D014241:Trichloroethylene; D014050:Toluene
vernacular_title: Proposta di valori limite di concentrazione di solventi organici nell'aria alveolare.