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NITROGENOUS OXYGEN DEMAND (NOD)

Statistics Directorate    
French Equivalent: Demande d'oxygène pour la nitrification (DON)

Definition:
Nitrogenous oxygen demand (NOD) is a quantitative measure of the amount of dissolved oxygen required for the biological oxidation of nitrogenous material, for example, nitrogen in ammonia, and organic nitrogen in waste water.

Source Publication:
Glossary of Environment Statistics, Studies in Methods, Series F, No. 67, United Nations, New York, 1997.

Statistical Theme: Environmental statistics

Created on Tuesday, September 25, 2001

Last updated on Tuesday, December 11, 2001