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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5868

Title: The effects of exposure to multiple occupational health stressors on distortion product otoacoustic emissions
Authors: Edwards, A
Keywords: Noise-induced hearing loss
NIHL
Mineworkers
South African mining conditions
Occupational health stressors
Otoacoustic emissions
Issue Date: Apr-2012
Citation: Edwards, A. The effects of exposure to multiple occupational health stressors on distortion product otoacoustic emissions. INRS Mixed-exposures conference, Nancy, France, 2-4 April 2012
Series/Report no.: Workflow;8968
Abstract: Mineworkers are exposed to combinations of stressors, since they spend most of the working shift performing physical work under noisy, hot, humid and dusty conditions, in some cases with exposure to chemicals. Such combined exposure confounds the evaluation of impacts from individual stressors. Studies have demonstrated that exposure to noise combined with physical work can have synergistic impacts. Similarly, exposure to noise and chemicals accelerates and exacerbates the development of noise-induced hearing loss (NIHL). Furthermore, exposure to heat is believed to influence the biochemical properties of cochlear outer hair cells (OHCs) and heat stress structurally modifies the OHCs, making them stiffer through an increase in F-actin5. This experiment aimed to simulate some conditions in a mining environment (noise, heat/humidity, physical work) and to measure the effects of individual, and combinations of occupational health (OH) stressors on the functioning of the inner ear, using Distortion Product Otoacoustic Emissions (DPOAEs).
Description: INRS Mixed-exposures conference, Nancy, France, 2-4 April 2012
URI: http://hdl.handle.net/10204/5868
Appears in Collections:Mining and geoscience
Human factors
General science, engineering & technology

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