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Oxygen demand is an environmental chemistry term that may refer to: *Biochemical oxygen demand (BOD), the amount of oxygen needed by organisms to break down organic material present in a water sample *Carbonaceous biochemical oxygen demand (CBOD), the amount of oxygen needed to break down carbon compounds, excluding nitrogen compounds *Chemical and biological oxygen demand, the combination of biochemical (BOD) and chemical oxygen demand (COD) *Chemical oxygen demand (COD), a test commonly used to indirectly measure the amount of organic compounds in a water sample *Nitrogenous oxygen demand (NOD), the amount of oxygen required to break down nitrogenous compounds in a water sample, like ammonia *Theoretical oxygen demand (ThOD), the calculated amount of oxygen required to oxidize a compound to its final oxidation products 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「oxygen demand」の詳細全文を読む スポンサード リンク
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