recommended exposure level

in toxicology
initialism: REL
https://doi.org/10.1351/goldbook.16027
Highest allowable regulatory airborne concentration.
Note: This exposure concentration is not expected to injure workers. It may be expressed as a ceiling limit or as a time-weighted average (TWA).
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1296 [Terms] [Paper]
Citation: 'recommended exposure level' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.16027 RIS BibTex EndNote
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