Title: discharge Long Title: IUPAC Gold Book - discharge DOI: 10.1351/goldbook.14592 Status: current Definition Release of any waste into the environment from a point source. Note Usually applied to release of liquid waste into water but may be applied to release to air. Source - PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 867 (https://doi.org/10.1351/PAC-REC-08-07-09) Other Outputs - html: https://goldbook.iupac.org/terms/view/14592/html - json: https://goldbook.iupac.org/terms/view/14592/json - xml: https://goldbook.iupac.org/terms/view/14592/xml Citation: Citation: 'discharge' 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.14592 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: 2026-07-23T20:24:58+00:00