ASSESSMENT OF NOISE INDUCED HEARING LOSS AMONG WORKERS AT ABEID AMANI KARUME INTERNATIONAL AIRPORT (AAKIA) ZANZIBAR
DOI:
https://doi.org/10.63104/suj.v10.i2.133Keywords:
Noise Induce Hearing Loss, Abeid Amani Karume International Airport, Hearing protection deviceAbstract
Background: Noise-induced hearing loss (NIHL) is a hearing impairment resulting from exposure to an excessive loud sound that damage the structures and/or nerve fibers in the inner ear that respond to sound.
Objective: This study aimed to assess noise induced hearing loss (NIHL) among workers at Abeid Amani Karume International Airport (AAKIA) in Zanzibar.
Methodology: The Cross-sectional design was used to assess noise induced hearing loss (NIHL) among workers at AAKIA. The non-probability sampling technique was used to recruit 170 participants. Structured Questionnaires were used to gather data on demographic, and potential contributing factors to hearing loss. While an audiometry examination was used to test the participants hearing ability and checklist for direct observation was used to assess safety practice among the workers.
Results: The study revealed that of 170 AAKIA participants 52% were male. Among them 116 (68%) aged between 20 - 40 years, while 49 (29%) aged between 41 - 50 years. In general, the study indicated that 97% of the responses(workers) has low awareness of noise induced hearing loss. The audio-metric measurement indicated that only 1% of the respondents have normal hearing level (<25 dB). 81% with slight(mild) hearing loss (25-40dB), while 16% with moderate hearing level (41-60dB). Only 2 % of workers are in severe level of hearing loss (61-80dB) Direct observation shows that only 37% of workers found to wear hearing protection devices.
Conclusion: Low awareness on NIHL and use of protective gears pose a threat to the prevalence of NIHL among the workers at the AAKIA. AAKIA management should make strong effort to raise awareness, to improve safety practice so as to prevents its worker from NIHL.
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References
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Musiba Z. The prevalence of noise-induced hearingloss among Tanzanian miners. OCCMED. 2015;65(5):386–390.
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Cochran, W. G. Sampling techniques (3rd ed.). New York: John Wiley & Sons. (1977).
Glenn D. Israel, Determining sample size. Institute of Food and Agricultural Sciences (IFAS), University of Florida, Gainesville, FL 32611. (2003
Israel P. Nyarubeli, Alexander M. Tungu, Magne Bråtveit& Bente E. Moen Occupational noise exposure and hearing loss(2020).
Musiba Z. The prevalence of noise-induced hearing loss among Tanzanian miners. OCCMED. 2015;65(5): 386–390. doi:10.1093/occmed/kqv046.
Neitzel R., Fligor B., WHO. Determination of Risk of Noise-Induced Hearing Loss Due to Recreational Sound: Review. WHO; Geneva, Switzerland :(2017)
NPC Library Criteria for a Recommended Standard Occupational Noise Exposure: Revised Criteria 1996. (Accessed on 14 June 2020).
Osha Safety and Health Topics, Occupational Noise Exposure, Occupational Safety and Health Administration. (Accessed on 24 May 2020).
Rabinowitz P. Noise-Induced Hearing Loss. Aafp.org. 2019. (Accessed on 12 February 2019).
Traffic Movements Statistics Annual Report for the year 2014. Tanzania Airport Authority, Archived from the original on 5 March 2016. Retrieved14 September 2015.
Tubbs, R.L. (1991). Occupational noise exposure and hearing loss in fire fighters assigned to airport fire stations. American Industrial Hygiene Association Journal, 52(9), 372- 378.
Westerberg BD, Lee PK, Lukwago L, Zaramba S, Bubikere S, Stewart I. Cross-sectional survey of hearing impairment and ear disease in Uganda. J Otolaryngology Head Neck Surg. 2008 Dec; 37(6):753-8. PMID: 19128699
World Health Organization. (1986b). Prevention of deafness and hearing impairment. Thirty-ninth world health assembly, 1986 EB 79/10; Annex A 39/14 (pp. 1-18). Geneva, Switzland: World Health Organization.
Zanzibar forms Airports Authority, modernize aviation infrastructure. Business Times (Tanzania). Retrieved 17 January 2013.
Nyarubeli IP, Tungu AM, Bratveit M, Sunde E,Kayumba AV, Moen BE. Variability and determinants of occupational noise exposure among iron and steel factory workers in Tanzania. Ann Work Expo Health.2018; 62(9):1109– 1122.doi:10.1093/annweh/wxy071.https://www.colognebonnairport.com/uploads/tx_downl oad/KBA_GeBer2017_web_EN.pd.
Kamau W. M. Kenya Airports Authority Initial Environmental Audit Report, Jomo Kenyatta International Airport. NEMA, Nairobi. 2006.
Muriuki A. W. Kenya Airways Occupational Hygiene Survey; Noise and Air Quality Assessment Report. Kenya Airways, Nairobi. 2007.
GoK. Legal Notice No. 24, The factories and other places of work Act [Cap. 514]. Kenya Gazette Supplement No. 22. 2005
Rabinowitz PM. The public health significance ofnoise-induced hearing loss. In: Le Prell CG,Henderson D, Fay RR, Popper AN, eds. NoiseInduced Hearing Loss: {20} Scientific Advances. New York:8 I. P. NYARUBELI ET AL.Springer Science þ Business Media, LLC; 2012:13–25.
Musiba Z. The prevalence of noise-induced hearingloss among Tanzanian miners. OCCMED. 2015;65(5):386–390.
Ismail AF, Daud A, Ismail Z, Abdullah B. Noiseinduced hearing loss among quarry workers in anorth-eastern state of Malaysia: a study on knowledge,attitude and practice. Oman Med J. 2013;28(5):331–336. doi:10.5001/omj.2013.
Health and Safety Executive (HSE). Controlling noise at work. The Control of Noise at Work Regulations2005 no. 1643. Guidance on Regulations; 2005.
Rabinowitz P. Noise-Induced Hearing Loss. Aafp.org. 2019. [(accessed on 12 February2019)]. online: https://www.aafp.org/afp/2000/0501/p2749.html.
Neitzel R., Fligor B., WHO. Determination of Risk of Noise-Induced Hearing Loss Due to Recreational Sound: Review. WHO; Geneva, Switzerland: 2017. pp. 1– WHO Make Listening Safe: Risk Assessment and Definitions Group.
Osha Safety and Health Topics, Occupational Noise Exposure, Occupational Safety and Health Administration. [(accessed on 24 May 2020)]; online: https://www.osha.gov/SLTC/noisehearingconservation/
NPC Library Criteria For a Recommended Standard Occupational Noise Exposure: Revised Criteria 1996. [(accessed on 14 June 2020)].online: https://www.nonoise.org/library/niosh/criteria.htmww.alhiaya.com.
