noun
biochemical oxygen demand; BOD
Technical term used in environmental science and water quality assessment. Often abbreviated as BOD in English contexts.
河川の水質を評価するために生物化学的酸素要求量を測定した。
We measured the biochemical oxygen demand to assess the river water quality.
Chemical oxygen demand (COD); measures total oxygen demand from both biodegradable and non-biodegradable substances, while BOD focuses on biodegradable organic matter.
Compound of 生物 (biology), 化学的 (chemical), 酸素 (oxygen), and 要求量 (demand amount), directly translating the English term 'biochemical oxygen demand'.