Evaluation of perceived effects from exposure to occupational noise pollution on hearing loss among cement factory workers

Author (s)Charity O. Chukumah, Gabriel C. C. Ndinwa, & Solomon A. Akpafun 
Published 01 September 2020
DOIhttps://dx.doi.org/10.5281/zenodo.3996147
Full article
Abstract
This study was designed to evaluate the perceived effects from exposure to occupational noise pollution on hearing loss among cement factory workers in Edo State, Nigeria. A descriptive cross-sectional survey design was adopted for the study, and 183 factory workers who were mainly males working at different departments in the factory, were sampled. A well designed and structured questionnaire was used to obtain personal and scientific information from the participants. The questionnaire was sectionalized into four major aspects. Background noise levels and that of the work environment was measured using calibrated Wensen WS 1361 type 2 digital sound level meter. Student t-test was used to analyse the test of association between hours at work and hearing loss; whereas the prediction of hearing loss was determined using a multinomial logistic regression model. All statistical significances were considered at p<0.05. The results revealed that a larger proportion of the participants demonstrated a higher level of awareness on the effects of noise on health. A greater number of participants revealed a higher percentage on the general use of hearing protection device, and further revealed, was that most of the participants presented a high frequency of hearing loss. Participants from the storage and transportation (ST) department had the lowest prevalence of hearing loss at PTA512 and PTA346when compared with participants from other departments. No significant relationship was established to exist between the hours at work and hearing status for both ears at PTA512and PTA346. The multiple regression analysis revealed no significant relationship between the selected predictors and hearing loss for both ears at PTA512. However, age was revealed as a significant predictor of hearing status at PTA346for both ears because a positive relationship was established between age and hearing status. 
KeywordsHearing loss 
Noise pollution 
Edo state 
Factory workers 
Nigeria
CitationCharity O. Chukumah, Gabriel C. C. Ndinwa, & Solomon A. Akpafun 2020. Evaluation of perceived effects from exposure to occupational noise pollution on hearing loss among cement factory workers. European Journal of Interdisciplinary Research. Volume 1, issue 1. September 2020. DOI: https://dx.doi.org/10.5281/zenodo.3996147
Author InformationCharity O. Chukumahis a senior lecturer in the Department of Industrial Safety & Environmental Management, Delta State School of Marine Technology, Burutu, Nigeria.
 
Gabriel C. C. Ndinwa is a Lecturer II in the Department of Industrial Safety & Environmental Management, Delta State School of Marine Technology, Burutu. 
 
Solomon A. Akpafun holds a Master of Science Degree from the University of Benin, Nigeria; B.Sc Geography from the University of Port Harcourt, River State & N.C.E Geography/Biology from College of Education, Warri, Delta State. He is a senior lecturer at the Department of Urban & Rural Planning, Delta State School of Marine Technology, Burutu, Nigeria.