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... > Science Keywords > EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > BIOCHEMICAL OXYGEN DEMAND (BOD)

PREFERRED TERM

BIOCHEMICAL OXYGEN DEMAND (BOD)  

DEFINITION

  • The amount of dissolved oxygen needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic pollution of water.

BROADER CONCEPT

CHANGE NOTE

  • 2018-03-07 08:29:01.0 [tstevens] Insert Concept add broader relation (BIOCHEMICAL OXYGEN DEMAND (BOD) [2ef34dc5-4d29-4820-963c-f830f46c0347,310685] - WATER CHARACTERISTICS [f7e97dc3-1181-41b5-8b90-946eb2504110,310633]);
  • 2018-03-07 11:04:24.0 [tstevens] insert Definition (id: null text: The amount of dissolved oxygen needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic pollution of water. language code: en);
  • 2019-04-05 09:33:38.0 [tstevens] insert WeightedRelation (id: null related concept uuid: 853c3456-5397-4e16-ba67-51e4f4205db5 relationship type: null relationship value: null generated by: null);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/2ef34dc5-4d29-4820-963c-f830f46c0347

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