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"Biological Oxygen Demand (BOD) is a measure of the oxygen used by microorganisms to decompose this waste. If there is a large quantity of organic waste in the water supply, there will also be a lot of bacteria present working to decompose this waste. In this case, the demand for oxygen will be high (due to all the bacteria) so the BOD level will be high. As the waste is consumed or dispersed through the water, BOD levels will begin to decline."An excerpt from this site, this paragraph introduces the BOD measurement. An activity/worksheet is part of this page.

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Date Of Record Release 2005-05-17 10:05:28
Description "Biological Oxygen Demand (BOD) is a measure of the oxygen used by microorganisms to decompose this waste. If there is a large quantity of organic waste in the water supply, there will also be a lot of bacteria present working to decompose this waste. In this case, the demand for oxygen will be high (due to all the bacteria) so the BOD level will be high. As the waste is consumed or dispersed through the water, BOD levels will begin to decline."An excerpt from this site, this paragraph introduces the BOD measurement. An activity/worksheet is part of this page.

Classification
Source Stevens Institute of Technology, Center for Innovation in Engineering and Science Education (CIESE)
Keyword biological oxygen demand, dissolved oxygen, nitrogen, phorphorus, water quality
Date Of Record Creation 2004-10-07 17:18:51
Date Last Modified 2005-05-17 10:05:28
Language English
Date Record Checked: 2005-05-17 00:00:00 (W3C-DTF)

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