Occupational Exposure Limits
Oregon Institute of Occupational Health Sciences Featured Resources provide the latest information on workplace safety, health and well-being. Additional information can be filtered by topic in the supporting navigation to the left of the article content.
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Values (TLVs)
This page provides descriptions and ordering information for the TLVs and BEIs,which are guidelines established by the American Conference of Governmental Industrial Hygienists.
International Labour Organization: Chemical Exposure Limits
The following texts provide information on the agency responsible for the establishment and publication of exposure limits in each country with an Internet link to a table or database containing the exposure limit values.
Workplace Safety & Health Topics: NIOSH Evaluation of its Cancer and REL Policies
NIOSH is currently reviewing its cancer (carcinogen) and related Recommended Exposure Limit (REL) to ensure that they reflect current scientific and risk management practices.