The effects of occupational noise on sound perception of engine grinders and airport staff in Northern Nigeria
Journal Title: Scientific Journal of Environmental Sciences - Year 2014, Vol 3, Issue 1
Abstract
Hearing or auditionis the ability to perceive sound by detecting vibrations through the ear. Noiseis perhaps, the most common occupational and environmental hazard. Grindingmachines and airplanes can generate considerable noise (above 85dB) and thus,may cause hearing loss. This research was conducted using an instrument knownas an audiometer to investigate the effect of noise generated from thesesources on individuals that are exposed to it for a long duration. One hundredand fifty (150) subjects divided into three groups of A, B and C, were used forthis study, each group comprising of 50 subjects. Group A (control group),comprised of secondary school staff, while local engine grinders and staff ofAirport Operations Department made up groups B and C (study groups),respectively. Results obtained from the study showed that individuals in thestudy groups had a significantly increased hearing threshold from 28.22±1.26and 28.80±1.29 to 50.08± 1.14 and 50.56±1.21 for the engine grinders,44.92±1.31 and 44.59±1.38 above the normal (0-25dB) in both ears when comparedto the control group. This revealed that the study groups had a poor hearingperception as well as a greater hearing loss than the control group. Inconclusion, since engine grinders and staff of airport operation department aresusceptible to this adverse effect due to their daily exposure to excessivesound (noise), it is advisable that they always work with ear protectivedevices.
Authors and Affiliations
J. A. Tende*| Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria., A. Mohammed| Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria., E. D. Eze| Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria., Y. A. Tende| Department of Pharmacology and Therapeutics, Ahmadu Bello University, Zaria, Nigeria., O. A. Daikwo| Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria., O. Onaadepo| Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, University of Abuja, Abuja, Nigeria., I. S. Malgwi| Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria., A. Shaibu| Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria.
Keywords
Related Articles
- EP ID EP1306
- DOI 10.14196/sjes.v3i1.1226
- Views 472
- Downloads 35
Assessment of the impact of Abiotic factors on the fish assemblages in a tropical estuary creek
Fish assemblage structures of Badagry creek, Nigeria in relation to abiotic (physical and chemical) variables were studied for 2 years period (November, 2011 – September, 2013). Environmental parameters were monitored in...
Establishments of porosity model and evaluation to monitor the effect on c to ground water aquifers in port harcourt
Model establishment and calibration of porosity to monitor the effect of shigella migration to groundwater aquifer has been examined. These calibrations were to establish the model that will determine the influence of po...
Some breeding aspects of the indian roller coracias benghalensis, common myna acridotheres tristis and black drongo dicrurus macrocercus in Southern India
We studied some breeding aspects of the Indian Roller, Common Myna and Black Drongo in Nagapattinam District of Tamil Nadu, India. The breeding activities of these species were recorded between March and August. We prese...
Biosorption of acid blue 113 dyes using dried Lemna minor biomass
Industrial wastewater is one of the major environmental pollutants. Discharge of the colorful industrial waste into the receptive waters leads to eutrophication and has mutagenic and carcinogenic properties. Therefore, t...
Spatial distribution of soil aggregate stability (MWD) as compared to particle size distribution (PSD) using geostatistics
Soil aggregate is one of the most important soil properties governing most of the physical, chemical, hydrological and biological properties of soils. Also soil particle size distribution (PSD) is one of the fundamen...