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Definition of existing P01 (https://vocab.nerc.ac.uk/collection/P01/current/CODZZZZZ/): Quantity of oxygen required to oxidize all dissolved oxidizable chemical material contained in a unit volume of a water body. Solute may be expressed in terms of mass, volume or quantity of substance.
S0600288 - Chemical oxygen demand submitted via vocab editor
Required
Term name (PrefLabel)
Chemical Oxygen Demand
Definition
The amount of oxygen that is needed to oxidise the organic matter present in a quantity of water.
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Sources/references
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/chemical-oxygen-demand