predicted environmental concentration

initialism: PEC
synonyms: estimated environmental concentration (EEC), expected environmental concentration (EEC)
https://doi.org/10.1351/goldbook.14944
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.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 930 [Terms] [Paper]
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. https://doi.org/10.1351/goldbook.14944 RIS BibTex EndNote
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