[Dynamic circulation of toluene in the human body under industrial conditions]

In deep print departments an investigation of dynamic toluene circulation in the organism of individuals occupationally exposed to its effects was carried out. Gas chromatography was employed in studying environmental atmospheric conditions in the departments in determining the proportion of toluene in the expired air, blood and hippuric acid in the urine. Quantitative correlations between the toluene content in the air and its concentration in the blood and in the expired air, as well as between the exposure and excretion of hippuric acid were ascertained. Under a chronic exposure to the effects of toluene a significantly reduced peroxidase activity was recorded.