Title: estimated environmental concentration Long Title: IUPAC Gold Book - estimated environmental concentration DOI: 10.1351/goldbook.15680 Status: current Definition Predicted concentration of a substance, typically a pesticide, within an environmental compartment based on 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. Related Term - expected environmental concentration: https://goldbook.iupac.org/terms/view/15693 Source - PAC, 2007, 79, 1153. 'Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)' on page 1217 (https://doi.org/10.1351/pac200779071153) Other Outputs - html: https://goldbook.iupac.org/terms/view/15680/html - json: https://goldbook.iupac.org/terms/view/15680/json - xml: https://goldbook.iupac.org/terms/view/15680/xml Citation: Citation: 'estimated 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.15680 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: 2026-05-10T14:19:14+00:00