In a group of workers employed in a shoe upper factory, the concentrations of n-hexane, acetone, methylcyclopentane, 2-methylpentane, and 3-methylpentane were measured in environmental air, alveolar air and in blood. The data of methylcyclopentane, 2-methylpentane, and 3-methylpentane determination, as for n-hexane and acetone reported elsewhere, showed that alveolar and blood monitoring can replace environmental monitoring of solvents. In fact, it was found that alveolar and blood concentration, and lung uptake were correlated with environmental concentration of methylcyclopentane, 2-methylpentane, and 3-methylpentane. © 1979 Springer-Verlag.
