What does BOD in river water indicate? | vedclass

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(C) $BOD$ stands for Biochemical Oxygen Demand. It represents the amount of dissolved oxygen that would be consumed if all the organic matter in one l

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It increases when sewage is mixed into the water.

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(C) $BOD$ stands for Biochemical Oxygen Demand. It represents the amount of dissolved oxygen that would be consumed if all the organic matter in one liter of water were oxidized by bacteria. When sewage is discharged into a river,it contains a large amount of organic matter,which serves as food for microorganisms. As these microorganisms decompose the organic matter,they consume a significant amount of dissolved oxygen,leading to an increase in the $BOD$ value. Therefore,a high $BOD$ value is a direct indicator of water pollution caused by sewage.

What does $BOD$ in river water indicate?

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