These resources are brought to you by the Cooperative Extension System and your Local Institution

What does the term "Biological Oxygen Demand" mean?

Last Updated: February 18, 2008

View as web page


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.

Browse related Faqs by tag: science, waterpollution


Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.



View this page: