Title: predicted no-effect concentration
Long Title: IUPAC Gold Book - predicted no-effect concentration
DOI: 10.1351/goldbook.14945
Status: current

Definition
Concentration that is expected to cause no adverse effect to any naturally occurring population in an environment at risk from exposure to a given substance.

Related Term
- population: https://goldbook.iupac.org//terms/view/14932

Source
- PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 931 (https://doi.org/10.1351/PAC-REC-08-07-09)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/14945/html
- json: https://goldbook.iupac.org/terms/view/14945/json
- xml: https://goldbook.iupac.org/terms/view/14945/xml

Citation: Citation: 'predicted no-effect concentration' 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.14945
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Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.
Accessed: 2026-04-21T16:29:21+00:00