Many substances in workplace do not have occupational exposure limits (OELs). The threshold of toxicological concern (TTC) principle is part of the hierarchy of approaches useful in occupational healt
The table shows risk of overweight or abdominal obesity between 8–8.9 h and 1Odds Ratio.2Waist circumference ≥102 cm.3Waist circumference ≥88 cm.4Not significant.
ABSTRACT Purpose: to investigate the use of hearing protection and symptoms in hospital maintenance workers and evaluate the noise level of the machines. Methods: a cross-sectional quantitative study