Thoughts on the Noise “Notch” and the Importance of Testing 8 kHz

Details

• Personal Author:
  Murphy, William J. ; Stephenson, Mark R. ; Themann, Christa L.
• Description:
  The primary purpose of audiometric monitoring is to identify hearing changes while they are still small. Hopefully, these changes can be identified before they represent permanent changes, i.e., while they are temporary threshold shifts. The susceptibility to developing a hearing loss is not the same at all frequencies. Assuming that a worker's ears are otherwise healthy, that there is no excess build-up of cerumen, and that appropriate audiometric test methods are followed, hearing changes due to noise are first detected and grow most rapidly at the higher frequencies. The American National Standards Institute (ANSI) provides data estimating expected hearing loss as a function of noise level, years of exposure, and audiometric frequency (ANSI, 1996). [Description provided by NIOSH]
• Subjects:
  Hearing Hearing Loss Hearing Loss, Noise-Induced Noise Noise, Occupational Occupational Exposure Occupational Health Safety
• Keywords:
  Audiometry Hearing-loss Hearing-threshold Monitoring-systems Noise-exposure Noise-frequencies Noise-induced-hearing-loss Noise-levels Occupational-exposure Worker-health Workers

  More +
• Document Type:
  Text
• Genre:
  Newsletter
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  16
• Issue:
  3
• NIOSHTIC Number:
  nn:20025656
• Citation:
  Update: The Newsletter of the Council for Accreditation in Occupational Hearing Conservation 2004 Oct; 16(3):1, 6
• Federal Fiscal Year:
  2005
• NORA Priority Area:
  Disease and Injury: Hearing Loss
• Peer Reviewed:
  False
• Source Full Name:
  Update: The Newsletter of the Council for Accreditation in Occupational Hearing Conservation
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1c902e9fe7977cc3ced6780a74140c5bd512d5d83067b01e7b1aa524a8d54b44ca2727cd7589cdbbc37e43f5d256ed013f1b152342fe99c020089794f13c6526
• Download URL:
  https://stacks.cdc.gov/view/cdc/196932/cdc_196932_DS1.pdf
• File Type:
  [PDF - 633.73 KB ]