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, benzene and ethylene oxide. 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).
The American Conference of Governmental Industrial Hygienists publishes a more extensive list of STELs as threshold limit values (TLV-STEL).
Similar national exposure limits
- United Kingdom
- COSHH (Control of Substances Hazardous to Health).
- Australia
- OES Occupational Exposure Standard
- France
- VLEP 8h00 (Valeur Limite d’Exposition Professionnelle 8h00)
- VLEP CT (Valeur Limite d’Exposition Professionnelle Court Terme)
- Netherlands
- MAC (Maximaal Aanvaarde Concentratie)
- Malaysia
- PEL (Permissible Exposure Limits)
- Poland
- NDSCh (Najwyższe dopuszczalne stężenie chwilowe)
- Russia
- ПДК (предельно допустимая концентрация)
See also
- Permissible exposure limit
- Exposure action value
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
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