{"id":42172,"key":"Biochemical_Oxygen_Demand","title":"Biochemical Oxygen Demand","latest":{"id":1223264,"timestamp":"2026-01-08T22:16:04Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"'''Biochemical Oxygen Demand (BOD)''' is a [[water quality]] parameter that measures the amount of oxygen required for biochemical activity (e.g. aerobic bacteria) to break down all organic material present in the water. High levels of BOD in a system can decrease the available oxygen and be harmful to aquatic life.<ref name=\"MandE\">Metcalf and Eddy, 2003, Wastewater Engineering Treatment and Reuse, McGraw Hill, New York, NY</ref>\n\n== References ==\n\n<references />\n\n{{Page data\n| license = CC-BY-SA-3.0\n| description = Biochemical Oxygen Demand measures water health. Appropedia explains its role in pollution tracking and maintaining aquatic ecosystem balance.\n}}\n\n[[Category:Water quality]]"}