A short-term exposure limit (STEL) is the acceptable average exposure over a short period of time, usually 15 minutes as long as the time-weighted average is not exceeded.
STEL is a term used in exposure assessment, occupational health, industrial hygiene and toxicology. The STEL may be a legal limit in the United States for exposure of an employee to a chemical substance. The Occupational Safety and Health Administration (U.S. OSHA) has set OSHA-STELs for 1,3-butadiene,[1] benzene[2] and ethylene oxide.[3] For chemicals, STEL assessments are usually done for 15 minutes and expressed in parts per million (ppm), or sometimes in milligrams per cubic meter (mg/m3).[4]
The American Conference of Governmental Industrial Hygienists publishes a more extensive list of STELs as threshold limit values (TLV-STEL).[5]
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B4 1 Workplace Exposure Limits
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Hands-on Activity Demonstration: Choosing an Occupational Exposure Limit
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Threshold limit value
Transcription
Similar national exposure limits
- United Kingdom
- Australia
- OES Occupational Exposure Standard[8]
- France
- Netherlands
- Malaysia
- PEL (Permissible Exposure Limits)
- Poland
- Russia
See also
Notes
- ^ 29CFR1910.1051
- ^ 29CFR1910.1028
- ^ 29CFR1910.1047
- ^ "Coshh Assessment Guide". Sunday, March 15, 2020
- ^ American Conference of Governmental Industrial Hygienists
- ^ "Workplace exposure limits".
- ^ "EH40/2005 Workplace exposure limits".
- ^ OES Occupational Exposure Standard Archived 2011-09-05 at the Wayback Machine
This page was last edited on 24 September 2023, at 23:21