Evaluating the Effectiveness of Earplugs in Preventing Noise-Induced Hearing Loss in an Auto Parts Factory in China

Details

• Personal Author:
  Feng, H. Amy ; Gong W ; Li L ; Morata, Thais C. ; Qiu W ; Zhao L ; Zhu B
• Description:
  A survey was administered to 385 noise-exposed workers from an auto parts factory and 1268 non-noise-exposed health department employees in China. Individual 8 h A-weighted equiva-lent sound levels (LAeq,8h), earplug personal attenuation ratings (PARs), and pure-tone audiometric tests were performed. The average LAeq,8h of noise-exposed workers was 87 dB (A) with a mean PAR of 7 dB. The prevalence of high-frequency hearing loss was 65% for noise-exposed workers and 33% for the non-noise-exposed employees. The use of earplugs had no observable effect on the prevalence of high-frequency hearing loss of the study participants (OR 0.964, 95% CI 0.925-1.005, p = 0.085). No significant relationship between the effectiveness offered by earplug use and high-frequency hearing thresholds at 3, 4, and 6 kHz was found (t = -1.54, p = 0.125). The mandatory requirement of earplug use without individualized training on how to wear HPDs correctly had no detectable effect on the prevention of hearing loss at the auto parts factory. The hearing conservation program at the surveyed factory was not effective. Periodic hearing tests, earplug fit testing, expanding the offer of different types of hearing protection, and employee education about the importance of protecting their hearing were recommended to the occupational health and safety program. [Description provided by NIOSH]
• Subjects:
  Automobiles Ear Hearing Hearing Loss, Noise-Induced Manufacturing And Industrial Facilities Noise Noise, Occupational Occupational Health Personal Protective Equipment Protective Clothing Safety Sense Organs

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• Keywords:
  Audiometric Test Auditory Protection Author Keywords: Hearing Protection Device Automotive Industry Earplug Ear Protectors Effectiveness Research Factory Workers Fit Testing Hearing Protection HPD NIHL Noise-induced Hearing Loss Noise Exposure Noise Induced Hearing Loss PAR Personal Attenuation Rating Personal Protective Equipment PPE Time Weighted Average Exposure

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• ISSN:
  1660-4601
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Journal Article
• Place as Subject:
  New York ; Ohio ; OSHA Region 2 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DFSE - Division of Field Studies and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  18
• Issue:
  13
• NIOSHTIC Number:
  nn:20063055
• Citation:
  Int J Environ Res Public Health 2021 Jul; 18(13):7190
• Contact Point Address:
  Baoli Zhu, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
• Email:
  zhubl@jscdc.cn
• Federal Fiscal Year:
  2021
• NORA Priority Area:
  Construction ; Manufacturing
• Peer Reviewed:
  True
• Source Full Name:
  International Journal of Environmental Research and Public Health
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:48953a4edc850a4f6333a7dca369571ce5213cc7e54193ec8184de7558186f6fc0829694136e9d3789c61ccd328564f521b0d55df5ebfa4d022ba6f4f99e1a2b
• Download URL:
  https://stacks.cdc.gov/view/cdc/226184/cdc_226184_DS1.pdf
• File Type:
  [PDF - 1.59 MB ]