What does the term "Biological Oxygen Demand" mean?

February 19, 2008 Print Friendly and PDF
Biological Oxygen Demand (BOD) is a measure of the amount of oxygen consumed by microorganisms (bacteria) in water. Microorganisms use oxygen to consume organic matter. The more microorganisms in the water, the more oxygen they consume. A high BOD indicates high levels of organic matter and bacteria.

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