Short-term exposure limit

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). __TOC__ Provided by Wikipedia

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    Contributors: ...Solar-Terrestrial Environment Laboratory Nagoya (STEL)...
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    by Ogawa, T.
    Published 1996
    Contributors: ...Solar-Terrestrial Environment Laboratory Nagoya (STEL)...
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    by Ogawa, T.
    Published 1996
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    Contributors: ...Solar-Terrestrial Environment Laboratory Nagoya (STEL)...
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