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Year : 2014  |  Volume : 16  |  Issue : 73  |  Page : 410--415

A comparison of the effects of solvent and noise exposure on hearing, together and separately

1 Department of ENT, Faculty of Medicine, Duzce University, Duzce, Turkey
2 Department of ENT, Ankara Occupational Diseases Hospital of Toxicology, Ankara, Turkey
3 Department of Internal Medicine, Faculty of Medicine, Duzce University, Duzce, Turkey
4 Department of Toxicology, Ankara Occupational Diseases Hospital of Toxicology, Ankara, Turkey

Correspondence Address:
Dr. Ilhan Unlu
Department of ENT, Duzce University Medical Faculty, Konuralp 81160, Duzce
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1463-1741.144422

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The objective of the present study was to assess the effects of occupational exposure to noise and organic solvents on hearing loss in bus and truck plant workers. Our case control study contained 469 workers from a bus and truck plant divided into three groups. The first group contained workers exposed to only noise; the second group contained workers exposed to both noise and mixture solvents at a permissible level; and the third group included workers exposed to permissible levels of solvents. The control group (Group 4) included 119 individuals selected randomly, persons who were not exposed to noise and solvents. These groups were compared in terms of each individual's frequency hearing loss in both ears. Our study demonstrates that combined exposure to mixed solvents and noise can exacerbate hearing loss in workers. Hence, a suitable hearing protection program is advised that would contain short-interval audiometric examinations and efficient hearing protectors.


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