Title: incipient LC50
Long Title: IUPAC Gold Book - incipient LC<sub>50</sub>
DOI: 10.1351/goldbook.14751
Status: current

Definition
Concentration of a chemical which is lethal to \(\pu{50\%}\) of the test organisms as a result of exposure for periods long enough for acute lethal action to cease; in other words, the concentration below which \(\pu{50\%}\) of individuals will have a normal lifespan despite the previous exposure to a toxicant.

Source
- PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 899 (https://doi.org/10.1351/PAC-REC-08-07-09)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/14751/html
- json: https://goldbook.iupac.org/terms/view/14751/json
- xml: https://goldbook.iupac.org/terms/view/14751/xml

Citation: Citation: 'incipient LC<sub>50</sub>' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14751
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Accessed: 2026-06-20T01:22:27+00:00