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Short-term exposure limit

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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 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).

The American Conference of Governmental Industrial Hygienists publishes a more extensive list of STELs as threshold limit values (TLV-STEL).^[4]

Similar national exposure limits[edit]

• Australia
  • OES Occupational Exposure Standard ^[5]
• France
  • VME (valeur moyenne d'exposition)
  • VLE (valeur limite d'exposition)
• Netherlands
  • MAC (Maximaal Aanvaarde Concentratie)
• Malaysia
  • PEL (Permissible Exposure Limits)
• Poland
  • NDN (najwyższe dopuszczalne natężenie)
• Russia
  • ПДК (предельно допустимая концентрация)

See also[edit]

• Permissible exposure limit
• Exposure action value

Notes[edit]

1. Jump up ^ 29CFR1910.1051
2. Jump up ^ 29CFR1910.1028
3. Jump up ^ 29CFR1910.1047
4. Jump up ^ American Conference of Governmental Industrial Hygienists
5. Jump up ^ OES Occupational Exposure Standard

   

출처: <http://en.wikipedia.org/wiki/Short-term_exposure_limit>