Hearing Health of Workers Exposed to Noise and Insecticides

Details

• Personal Author:
  Augusto LG ; Morata, Thais C. ; Teixeira CF
• Description:
  To examine the peripheral auditory disorders in a group of workers exposed to organophosphate and pyrethroid insecticides, used in vector control campaigns. The prevalence study examined a population of 98 individuals who sprayed insecticides in campaigns for the prevention of Dengue, Chagas disease and Yellow fever. The sampling approach was finalistic, and included the workers in a health district of Pernambuco, during the year 2000. A questionnaire was used to collect data on occupational and non-occupational risks, safety measures utilized, family history of auditory problems and health symptoms. Previous noise exposure history was also investigated, since noise can be a confounding factor for hearing loss. Hearing sensitivity and middle ear function were assessed by pure tone audiometry. Among those exposed to insecticides, 63.8% demonstrated a hearing loss. For the group of workers exposed to both noise and insecticides, hearing loss was observed in 66.7% of the cases. The median exposure time necessary to detect high-frequency losses was 3.4 years for workers exposed to both agents and 7.3 years for workers exposed to insecticides only. Hearing thresholds were poorest among workers exposed to both agents. Auditory damage for those with combined exposures to the two factors was more severe than the hearing losses observed among those exposed only to insecticides. There is evidence that exposure to insecticides was associated with peripheral sensorioneural hearing loss and that noise exposure can potentiate the ototoxic effects of insecticides. It is necessary to evaluate this possible association through epidemiological studies. [Description provided by NIOSH]
• Subjects:
  Environmental Exposure Environmental Pollution Hearing Hearing Loss Hearing Loss, Noise-Induced Insecticides Noise Noise, Occupational Occupational Health Safety
• Keywords:
  Audiometry Auditory System And Multiple Exposures Author Keywords: Hearing Loss Environmental Exposure Environmental Hazards Hearing Disorders Hearing Loss Hearing Threshold Noise-induced Noise Induced Hearing Loss Organo Phosphorus Pesticides Ototoxicity Vector Control

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• ISSN:
  0034-8910
• Document Type:
  Text
• Genre:
  Journal Article
• 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
• Pages in Document:
  417-423
• Volume:
  37
• Issue:
  4
• NIOSHTIC Number:
  nn:20023488
• Citation:
  Rev Saude Publica 2003 Aug; 37(4):417-423
• Contact Point Address:
  Cleide Fernandes Teixeira, Av. Eng. Abdias de Carvalho, 1678, CEP: 50720-635 Recife, PE, Brasil
• Email:
  lcteix@elogica.com.br
• Federal Fiscal Year:
  2003
• Peer Reviewed:
  True
• Source Full Name:
  Revista de Saude Publica
• End Date:
  20050930
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2717e7af832ca2f56ba1ec606619fdb4a68a49bd47b938d6aaaf6e4338f65b00cc27fceb955920b9c456f0b825b9a4550d0c4217d5522e82228d046ead2f984b
• Download URL:
  https://stacks.cdc.gov/view/cdc/195876/cdc_195876_DS1.pdf
• File Type:
  [PDF - 228.24 KB ]