Title: predicted environmental concentration
Long Title: IUPAC Gold Book - predicted environmental concentration
DOI: 10.1351/goldbook.14944
Status: current

Definition
Concentration of a substance likely to be found in an environmental compartment calculated from estimates of quantities released, discharge patterns, and inherent disposition of the substance (fate and distribution) as well as the nature of the specific receiving ecosystems.

Note
EEC models for pesticides assume a maximum number of applications per growing season at the maximum rate of application according to the application methods stated on the product label.

Related Terms
- compartment: https://goldbook.iupac.org//terms/view/14537
- ecosystems: https://goldbook.iupac.org//terms/view/14619

Source
- PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 930 (https://doi.org/10.1351/PAC-REC-08-07-09)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/14944/html
- json: https://goldbook.iupac.org/terms/view/14944/json
- xml: https://goldbook.iupac.org/terms/view/14944/xml

Citation: Citation: 'predicted environmental 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.14944
License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.
Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .
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: 2026-04-21T16:29:22+00:00