Background and Objectives. This study aimed to investigate the effect of noise exposure on blood pressure and heart rate of steel
industry workers. Materials and Methods. In the present cross-sectional study, 50 workers were selected from a steel company in
Fars province, Iran, and exposed to 85, 95, and 105 dB noise levels for 5 minutes. The participants’ blood pressure and heart rate
were measured using Beurer BC16 pulse meter both before and after the exposure. Results. The study results showed no significant
difference in blood pressure and heart rate before and after the exposure. However, the workers’ systolic blood pressure had
increased compared to before the exposure; of course, the difference was not statistically significant (