IUPAC > Gold Book > alphabetical index > L > lowest-observed-effect-level (LOEL)
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lowest observed adverse effect level (LOAEL)low-pressure diamond
lowest-observed-effect-level (LOEL)
Lowest concentration or amount of a substance, found by experiment or observation, that causes any alteration in morphology, functional capacity, growth, development, or life span of target organisms distinguishable from normal (control) organisms of the same species and strain under the same defined conditions of exposure.
See also: lowest-observed-adverse-effect-level, no-observed-adverse-effect-level, no-observed-effect-level
Source:
PAC, 1993, 65, 2003 (Glossary for chemists of terms used in toxicology (IUPAC Recommendations 1993)) on page 2065
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Cite as: IUPAC Compendium of Chemical Terminology, Electronic version, http://goldbook.iupac.org/L03634.html.
Transformed and rewritten from PDF version (entry http://www.iupac.org/goldbook/L03634.pdf)
by: Miloslav Nic, Jiri Jirat, Bedrich Kosata, ICT Prague, Czech Republic
Version for print | History of this term
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