1- Islamic Azad University & -, M.Sc. Student on HSE, SR.C., Islamic Azad University, Tehran, Iran 2- Islamic Azad University & -, Department of HSE, Sha.C., Islamic Azad University, Shahrood, Iran , hbahmanpour@iau.ac.ir 3- Islamic Azad University & -, Department of Environmental Management, SR.C., Islamic Azad University, Tehran, Iran
Abstract: (27 Views)
Background and purpose: In recent years, workplaces have witnessed special attention to noise pollution as a major challenge in the field of safety and environmental protection. This issue has become one of the main concerns of industries. The overall objective of this study is to measure the noise level in one of the power distribution companies in Tehran province and examine its relationship with job stress and environmental annoyance parameters.
methods: The present study is of an applied type. The research data was collected in the field. A portable device and Decible X, 2023 software was used to measure noise. A standard questionnaire (NIOSH, 1998) was used to determine the level of job stress, and an ISO 15666 (2003) questionnaire was used for noise annoyance. The results were compared with selected standards. Statistical analysis using SPSS software was also used to analyze the data.
Results: In the administrative section, the highest sound level was 56.8 dB (incident management) and the lowest was 33.9 dB (design and expertise), all of which were in accordance with OSHA, WHO, and DOE standards. In the operational section, the highest sound level was 87.9 dB and the sound exposure was 92.71 dB (line management) exceeded the permissible limits, and several stations exceeded the DOE limit. Noise annoyance in the operational section (62.875) was much higher than in the administrative section (46.46). Job stress in both sections was assessed as moderate. Sound level is not related to job stress, but it has a direct and significant relationship with noise annoyance. Conclusion: A combined and simultaneous study of the three parameters of noise level, occupational stress, and noise annoyance can cover study gaps and inform the researcher about all aspects of workplace health and safety.