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Wood Dust Wood Dust
Hazard Recognition

Wood dust has several hazards associated with exposure to it in the workplace. In general, exposure to excessive amounts is considered to have an irritant effect on eyes, nose and throat in addition to pulmonary function impairment and is considered a human carcinogen. Western red cedar dust has also been shown to cause asthma. Significant accumulations of fine particles of wood dust can also be a fire and explosion hazard in the workplace. The following web pages list different types of woods and provide information about each one and how they may affect humans.

Toxicity
  • Wood Dust. National Institute for Occupational Safety and Health (NIOSH), (1989, January 19). OSHA comments from the January 19, 1989 Final Rule on Air Contaminants Project extracted from 54 FR 2332 et. seq. This rule was remanded by the US Circuit Court of Appeals and the limits are not currently in force, and contains data from animal studies and human epidemiological studies on the health effects of wood dust.
  • Particulates (Not Otherwise Regulated). National Institute for Occupational Safety and Health (NIOSH), (1989, January 19). OSHA comments from the January 19, 1989 Final Rule on Air Contaminants Project extracted from 54 FR 2332 et. seq.
  • NIOSH Pocket Guide to Chemical Hazards. National Institute of Occupational Safety and Health (NIOSH) Publication No. 2005-151, (2005, September).
  • Toxic Woods. Health and Safety Executive (HSE), (2001, June), 140 KB PDF, 4 pages. Identifies health effects of wood exposures and precautions, and includes a table of woods and their effects.
  • Wood Dust and Formaldehyde. World Health Organization, International Agency for Research on Cancer (IARC), (1997, August 13), 37 KB PDF, 8 pages.
  • Wood Dust. US Department of Health and Human Services (DHHS), National Toxicology Program (NTP) Report on Carcinogens, Eleventh Edition, 209 KB PDF, 2 pages.
    • Report on Carcinogens: Background Document for Wood Dust, (2000, December), 6 MB PDF, 413 pages.
  • Wood Dust and Occupational Asthma. Occupational Health Surveillance and Evaluation Program (OHSEP), Occupational Health Branch, California Department of Health Services and Labor Occupational Health Program (LOHP), Center for Occupational and Environmental Health, School of Public Health, University of California, Berkeley, (2004, January), 533 KB PDF, 8 pages.
Biological Hazards and Chemical Additives

The health effects associated with wood dust come not only from the wood dust itself but also biological organisms such as mold and fungi which grow on the wood, and chemicals such as formaldehyde, copper naphthanate, and pentachlorophenol used in the processing of some woods.
Dust Explosions

In addition to the health effects of wood dust, airborne dust can create the potential for a dust explosion.
  • Hazardous (Classified) Locations. OSHA Construction Safety and Health Outreach Program. Contains a discussion of what comprises a hazardous location and the rating system. Wood dust can cause a location to be classified as Class II or Class III.
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Content Reviewed 02/14/2008
 
 


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