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Define the term 'Biological oxygen demand' (BOD).

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Question

Define the term 'Biological oxygen demand' (BOD).

Definition
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Solution

BOD is the amount of dissolved oxygen required by aerobic microorganisms to decompose organic matter (biodegradable material) in water. Higher BOD indicates higher organic pollution. Normal clean water BOD is about 8.0 mg/L DO.

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Chapter 20: Environmental Issues - EXERCISES [Page 1160]

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Sarita Aggarwal Biology [English] Class 12 ISC
Chapter 20 Environmental Issues
EXERCISES | Q II. 9. | Page 1160
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