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Wood Dust

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Evaluating Exposure

There are a number of ways to check the workplace for airborne wood dust. However, the only way to be certain of excessive exposure levels is to monitor the air for wood dust and compare the results with the relevant occupational exposure levels. The following links provide information about evaluating the level of wood dust in the workplace.

Occupational Exposure Levels

Several organizations have set standards or given recommendations for wood dust exposure. These include OSHA, NIOSH, and the American Conference of Governmental Industrial Hygienists (ACGIH).

Organization OEL 8 Hour TWA Basis
OSHA Permissible Exposure Limit Particulate Not Otherwise Regulated (PNOR) 15 mg/m 3 total 5 mg/m 3 Respirable Throat, skin, eye irritation, upper respiratory problems
NIOSH Recommended Exposure Limit 1 mg/m 3 total Pulmonary Function, Carcinogen
TLV ACGIH 2007 Western Red Cedar 0.5 mg/m 3 Asthma
ACIGH 2007 All other species 1 mg/m 3 Pulmonary Function
Analytical Methods
National Institute for Occupational Safety and Health (NIOSH)

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