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Journal of Environmental and Public Health
Volume 2013, Article ID 256060, 3 pages
http://dx.doi.org/10.1155/2013/256060
Research Article

Investigation of the Effect of Occupational Noise Exposure on Blood Pressure and Heart Rate of Steel Industry Workers

1Occupational Health Department, School of Health and Nutrition, Shiraz University of Medical Sciences, Shiraz 7153675541, Iran
2Epidemiology Department, School of Health and Nutrition, Shiraz University of Medical Sciences, Shiraz, Shiraz 7153675541, Iran
3Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran

Received 24 October 2012; Accepted 19 May 2013

Academic Editor: Roya Kelishadi

Copyright © 2013 Zahra Zamanian et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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 ( ). Besides, although the subjects' heart rate had reduced in comparison to before the exposure, the difference was not statistically significant ( ). Conclusion. No significant change was observed in blood pressure and heart rate after acute exposure to 85, 95, and 105 dB noise levels.