FrequentTail

Monday, February 14, 2005

Austin, John Langshaw

The amount of oxygen used by microorganisms in the process of breaking down organic matter in water. The more organic matter there is (e.g., in sewage), the greater the number of microbes. The more microbes there are, the greater the need of oxygen to support them; consequently, less oxygen is available for higher animals such as fishes. The BOD is therefore a reliable gauge

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