Occupational Exposure to Insecticides and Their Effects on the Auditory System

Details

• Personal Author:
  Augusto LSG ; Morata, Thais C. ; Teixeira CF
• Description:
  The objective of this investigation was to study the effects of occupational exposure to organophosphates and pyrethroid insecticides on the central auditory system. The study group consisted of 98 workers exposed to insecticides and 54 non-exposed workers. Data on work history, medical history, present diseases, occupational and non-occupational exposure to noise or chemicals and lifestyle factors were obtained through an interview. Central auditory system functions were assessed through frequency patterns and duration patterns testing. Fifty-six percent of the exposed workers had hearing dysfunction at the central level and its relative risk was 7.58 for the group with exposure to insecticides (95% CI 2.9- 19.8) when compared to the non-exposed group. The group exposed to insecticides and noise had a relative risk for central disorders of 6.5 (95% CI 2.2-20.0) when compared to the non-exposed group and 9.8 (95% CI 1.4-64.5) when compared to the group exposed only to noise. The finding suggests that exposure to organophosphates and pyrethroid products can induce damage to central auditory system. Further research is needed on the ototoxic mechanisms of these chemicals, and on hearing loss prevention measurements that are applicable and adequate to such risks and populations. [Description provided by NIOSH]
• Subjects:
  Hearing Hearing Loss Insecticides Mental Health Nervous System Noise Occupational Health Organophosphates Safety
• Keywords:
  Hearing-loss Neuropathy Neurophysiology Neurotoxic-effects Organic-compounds Organo-phosphorus-compounds Organo-phosphorus-pesticides Ototoxicity Pesticides Psychological-reactions
• DOI:
  http://www.noiseandhealth.org/text.asp?2002/4/14/31/31811
• ISSN:
  1463-1741
• 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:
  6 pdf pages
• Volume:
  4
• Issue:
  14
• NIOSHTIC Number:
  nn:20022796
• Citation:
  Noise Health 2002 Jan-Mar; 4(14):31-39
• Email:
  lcteix@elogica.com.br
• CAS Registry Number:
  Benzene (CAS RN 71-43-2) ; DDT (CAS RN 50-29-3) ; Phosphoric acid (CAS RN 7664-38-2)
• Federal Fiscal Year:
  2002
• NORA Priority Area:
  Disease and Injury: Hearing Loss
• Peer Reviewed:
  True
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6325e4d36fe33e61202417976defd6be40e2c366a4e54067ca40d51920876f2c6e79c43c045e3a7d114f7f92aafbf6a4ff0cde206b579abd29bd89b1e746585f
• Download URL:
  https://stacks.cdc.gov/view/cdc/199439/cdc_199439_DS1.pdf
• File Type:
  [PDF - 1.47 MB ]