A NEUROBEHAVIORAL EVALUATION OF WORKERS EXPOSED TO ORGANIC SOLVENT MIXTURES.

Solvent exposure for each subject was defined as (1) an exposed or nonexposed category based on an industrial hygiene walk-through and (2) the concentration of solvents based on an analysis of full-shift personal air samples by gas chromatography. The first definition was used to maintain consistency with Scandinavian studies, but the second was considered to be more accurate. Average full-shift solvent concentration was 302 ppm among printers and 6-13 ppm among other workers. Isopropanol and hexane