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Abstract
Hearing threshold was assessed in subjects engaged in different occupations at 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz and 8000 Hz, for left and right ear. The results revealed that the hearing threshold of truck drivers, auto drivers, traffic policeman, shop keepers, military personals, post office personals are significantly higher than the corresponding value for the normal subjects (persons not engaged in any particular profession). Among the different occupational categories, the truck drivers were found to have maximum hearing loss at higher frequencies which was followed by traffic police, army personals, auto drivers, shopkeepers and tailors.
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References
- Arutchelvan, V., Venkatesh, K. R., Damodharan, V. and Elangovan, R. 2004. Noise pollution in Chidambaram town – its impact on human environment. Journal of Industrial Pollution Control 20(2): 205-10.
- Franks, J. R. 1988. Number of Workers Exposed to Occupational Noise. Seminar in Hearing, Vo. 9, No. 4, November, Thieme Medical Publishers, Inc., New York, , U. S. A.
- Korfali, S. I., and Massoud, M. 2003. Assessment of community noise problem in greater Beirut area, Lebanon. Environmental Monitoring and Assessment. 84: 203-18. DOI: https://doi.org/10.1023/A:1023322507415
- Madhuri, T. U., Amruthavalli, and Shivakumar 2003. A study on noise pollution in some silence zones of Visakhapatnam, Andhra Pradesh. Nature Environment and Pollution Technology. 2(2): 163-65.
- Madhusudan Rao, P. 1991. Noise Pollution control technology instruments – Industrial safety and pollution control handbook, Associate (Data) Publ. Pvt Ltd., Hyderabad, pp: 190-220.
- Melnick, W. 1979. Hearing loss from noise exposure. In C. Harris (ed.), handbook of Noise Control, New York: McGraw-Hill, New York.
- Muzammil, M., Khan, A.A., Hasan, F., and Hasan, S. N. 2004. Effect of Noise on human performance under variable load in a Die casting industry – A case study. Journal of Environ. Science and Engg. 46(1): 49-54.
- Pondhe, G. M., Dixit, J. R., and Dhembare, A. J. 1998. Assessment of noise level in some cities of Ahmednagar district, India and Hearing loss. Poll Res. 17(3): 229-31.
- WHO (World Health Organisation) 1999. Guidelines for community Noise, WHO – Expert task force meeting held in London, UK.
References
Arutchelvan, V., Venkatesh, K. R., Damodharan, V. and Elangovan, R. 2004. Noise pollution in Chidambaram town – its impact on human environment. Journal of Industrial Pollution Control 20(2): 205-10.
Franks, J. R. 1988. Number of Workers Exposed to Occupational Noise. Seminar in Hearing, Vo. 9, No. 4, November, Thieme Medical Publishers, Inc., New York, , U. S. A.
Korfali, S. I., and Massoud, M. 2003. Assessment of community noise problem in greater Beirut area, Lebanon. Environmental Monitoring and Assessment. 84: 203-18. DOI: https://doi.org/10.1023/A:1023322507415
Madhuri, T. U., Amruthavalli, and Shivakumar 2003. A study on noise pollution in some silence zones of Visakhapatnam, Andhra Pradesh. Nature Environment and Pollution Technology. 2(2): 163-65.
Madhusudan Rao, P. 1991. Noise Pollution control technology instruments – Industrial safety and pollution control handbook, Associate (Data) Publ. Pvt Ltd., Hyderabad, pp: 190-220.
Melnick, W. 1979. Hearing loss from noise exposure. In C. Harris (ed.), handbook of Noise Control, New York: McGraw-Hill, New York.
Muzammil, M., Khan, A.A., Hasan, F., and Hasan, S. N. 2004. Effect of Noise on human performance under variable load in a Die casting industry – A case study. Journal of Environ. Science and Engg. 46(1): 49-54.
Pondhe, G. M., Dixit, J. R., and Dhembare, A. J. 1998. Assessment of noise level in some cities of Ahmednagar district, India and Hearing loss. Poll Res. 17(3): 229-31.
WHO (World Health Organisation) 1999. Guidelines for community Noise, WHO – Expert task force meeting held in London, UK.