TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

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Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1997-01-22

English

Subject field(s)
  • Environmental Studies and Analyses
  • Air Pollution
DEF

the time required for a substance - atmospheric pollutant - to reduce its concentration by 1/e, approx. 1/3.

French

Domaine(s)
  • Études et analyses environnementales
  • Pollution de l'air
OBS

temps de séjour : Période pendant laquelle une substance, après son émission ou après son apparition suite à une conversion chimique, demeure dans un milieu donné sans subir de modification de nature.

Spanish

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TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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