TERMIUM Plus®

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PUITS TROPOSPHERIQUE [1 record]

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Record 1 1989-11-27

English

Subject field(s)
  • Chemical Elements and Compounds
  • Air Pollution
CONT

Since only about 1% of the CFMs are dissociated each year, a small tropospheric sink would have tremendous impact. For example, if a tropospheric sink accounted for only 2% of the CFMs released, the peak ozone reduction would be reduced by two-thirds. Direct measurement of a tropospheric sink is not possible because both the CFM release to the atmosphere and the atmospheric burden of CFMs is imprecisely known.

French

Domaine(s)
  • Éléments et composés chimiques
  • Pollution de l'air
DEF

Ce qui contribue à faire disparaître définitivement une espèce chimique dans la troposphère.

OBS

L'absence de puits troposphérique efficace pour les hydrocarbures halogénés chimiquement inertes explique leur longue durée de vie, plus de cent ans, et leur présence dans la stratosphère.

Spanish

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