{"id":55421,"key":"COD","title":"COD","latest":{"id":1204663,"timestamp":"2025-11-27T14:07:22Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"COD stands for Chemical Oxygen Demand.{{W|Chemical oxygen demand}}\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}\n\n[[Category:Water quality]]"}