BOD (Biochemical Oxygen Demand)

BOD (Biochemical Oxygen Demand) is an important indicator of water pollution. It measures the amount of oxygen required for microorganisms to break down the organic matter present in water. A high BOD value indicates that a large amount of organic matter is present in the water and that microbial decomposition is active. It is used to assess the self-purification capacity of water and the degree of pollution, and it plays an important role in environmental protection and water quality management.