An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus Drivers

Noise is one of the major hazardous occupational exposures and one of the occupations at risk is the transportation industry. However, few studies have measured and reported the amount of noise exposure in drivers. In this study, we evaluated noise exposure among the public transportation bus driver...

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Main Authors: Mohammad Reza Monazzam, Ahmad Rajabizade, Mohammad Reza Ghotbi, Narges Khanjani, Farshad Nadri, Hamed Nadri
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2012-01-01
Series:International Journal of Occupational Hygiene
Subjects:
Online Access:http://ijoh.tums.ac.ir/index.php/ijoh/article/view/54/45
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author Mohammad Reza Monazzam
Ahmad Rajabizade
Ahmad Rajabizade
Mohammad Reza Ghotbi
Narges Khanjani
Farshad Nadri
Hamed Nadri
author_facet Mohammad Reza Monazzam
Ahmad Rajabizade
Ahmad Rajabizade
Mohammad Reza Ghotbi
Narges Khanjani
Farshad Nadri
Hamed Nadri
author_sort Mohammad Reza Monazzam
collection DOAJ
description Noise is one of the major hazardous occupational exposures and one of the occupations at risk is the transportation industry. However, few studies have measured and reported the amount of noise exposure in drivers. In this study, we evaluated noise exposure among the public transportation bus drivers of one major Iranian city, Kerman, southeast Iran. Eighty public transportation buses in the streets of Kerman, Iran in 2010 were randomly sampled during week day business hours and in each driver noise exposure was measured for 10 minutes according to the standard methods. The noise exposure was measured in 4 different models of buses. All of the buses were 7 or fewer years old. There was no significant difference in the noise produced by the 4 models. The measurements were similar ranging from 65.9 dBA to 79 dBA. The noise pressure, measured in a range from 31.5 Hz to 8000 Hz, decreased from about 90 dBA to 50 dBA as frequency increased but was below 85 dBA in the speech frequencies. The noise levels measured in these buses for the drivers were under the 85 dBA threshold for speech frequencies, and by sure less than 85 dBA for the passengers; it will probably not cause hearing or other health related problems. However, more studies in this field are suggested.
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spelling doaj.art-76f52582df614e0f929d826c4cd950562022-12-21T23:17:46ZengTehran University of Medical SciencesInternational Journal of Occupational Hygiene2008-51092008-54352012-01-014115An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus DriversMohammad Reza MonazzamAhmad RajabizadeAhmad RajabizadeMohammad Reza GhotbiNarges KhanjaniFarshad NadriHamed NadriNoise is one of the major hazardous occupational exposures and one of the occupations at risk is the transportation industry. However, few studies have measured and reported the amount of noise exposure in drivers. In this study, we evaluated noise exposure among the public transportation bus drivers of one major Iranian city, Kerman, southeast Iran. Eighty public transportation buses in the streets of Kerman, Iran in 2010 were randomly sampled during week day business hours and in each driver noise exposure was measured for 10 minutes according to the standard methods. The noise exposure was measured in 4 different models of buses. All of the buses were 7 or fewer years old. There was no significant difference in the noise produced by the 4 models. The measurements were similar ranging from 65.9 dBA to 79 dBA. The noise pressure, measured in a range from 31.5 Hz to 8000 Hz, decreased from about 90 dBA to 50 dBA as frequency increased but was below 85 dBA in the speech frequencies. The noise levels measured in these buses for the drivers were under the 85 dBA threshold for speech frequencies, and by sure less than 85 dBA for the passengers; it will probably not cause hearing or other health related problems. However, more studies in this field are suggested.http://ijoh.tums.ac.ir/index.php/ijoh/article/view/54/45Noise ExposureBus DriversIran
spellingShingle Mohammad Reza Monazzam
Ahmad Rajabizade
Ahmad Rajabizade
Mohammad Reza Ghotbi
Narges Khanjani
Farshad Nadri
Hamed Nadri
An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus Drivers
International Journal of Occupational Hygiene
Noise Exposure
Bus Drivers
Iran
title An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus Drivers
title_full An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus Drivers
title_fullStr An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus Drivers
title_full_unstemmed An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus Drivers
title_short An Investigation on Occupational Noise Exposure in Kerman Metropolitan Bus Drivers
title_sort investigation on occupational noise exposure in kerman metropolitan bus drivers
topic Noise Exposure
Bus Drivers
Iran
url http://ijoh.tums.ac.ir/index.php/ijoh/article/view/54/45
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