Biological Oxygen Demand (BOD) is a water quality parameter that measures the amount of dissolved oxygen required by microorganisms to break down organic matter in water. BOD is a crucial indicator of water pollution levels and can help assess the health of aquatic ecosystems. Typically, the BOD level of a water sample is determined by measuring the amount of dissolved oxygen in the sample before and after a period of incubation with microorganisms, usually for five days. Higher BOD levels indicate a higher level of organic pollution in the water, which can negatively impact aquatic life and ecosystems.
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