Typology:
Descriptive indicator (Type A - What is happening to the environment and to humans?)
Unit of measure:
Biochemical oxygen demand (BOD) after five days of incubation (BOD5) is expressed as milligrams of oxygen per litre (mg O2/l). Ammonium concentration is expressed as micrograms of ammonium–nitrogen per litre (µg N/l).
Frequency of dissemination:
Once a year
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