What is BOD?

Document ID

Document ID TE1226

Published Date

Published Date 09/01/2020
What is BOD?
What is BOD?
Biochemical Oxygen Demand (BOD) is a measure of the potential for effluent water to deplete the oxygen in the receiving stream. Fish and other aquatic life depend on dissolved oxygen in the water for survival; contaminated wastewater can rob the receiving stream of this oxygen and have significant negative effects on the environment. For this reason, wastewater and other discharging plants are required to measure BOD in their effluent.

Additional information on BOD, can be found in the following Technical Information Booklet (the Booklet is fairly old, so many of the part#s referenced are obsolete):

Introduction to Biochemical Oxygen Demand, by Clifford C. Hach, Robert L. Klein, Jr. Charles R. Gibbs

Chemical Oxygen Demand (COD) is often used to estimate BOD. More information on this topic can be found in the following article:

What is the relationship between BOD and COD?

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