TERMIUM Plus®

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DECOMPOSITION ZONE [1 record]

Record 1 2001-03-05

English

Subject field(s)
  • Water Pollution
  • Water Treatment (Water Supply)
CONT

Pollution of Streams and Lakes. Streams and Oxygen Consuming Wastes ,,, The different zones of a stream in this case are: - the clean zone as the river enters the point of contamination; - the decomposition zone where the wastes are decomposing and using the water's O2; - The septic zone where there are limited life forms found due to the lack of O2; - The recovery zone, where the stream begins to recover some O2, and - The clean zone, where again game fish and diverse life forms can be found.

Key term(s)
  • zone of decomposition

French

Domaine(s)
  • Pollution de l'eau
  • Traitement des eaux
DEF

Zone située plus en aval de la zone de dégradation, dite : «de déficit maximum en oxygène» présentant souvent des conditions anaérobies.

Spanish

Campo(s) temático(s)
  • Contaminación del agua
  • Tratamiento del agua
DEF

Zona caracterizada por el desarrollo de la descomposición anaerobia. El oxígeno disuelto está casi o totalmente agotado y ha desaparecido toda fauna acuática. El agua se vuelve negra y se producen olores ofensivos.

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