According to the job title for each worker, the study subjects were divided into 3 groups, including
group 1 of 63 workers without MSWL occupational hazards exposure (control
group), group 2 of 84 workers with a few or short-period MSWL occupational hazards exposure,
and group 3 of 100 workers with continuous MSWL occupational hazards exposure.
Both noise and TVOCs levels were significantly higher at worksites for group 3