TERMIUM Plus®

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TERRESTRIAL PARTICLE [1 record]

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Alphabetical list of terms

Record 1 1999-01-27

English

Subject field(s)
  • Air Pollution
  • Pollutants
  • Climatology

French

Domaine(s)
  • Pollution de l'air
  • Agents de pollution
  • Climatologie
CONT

Poussières d'origine extra-terrestre. De petites particules provenant de météorites pénètrent de façon constante dans l'atmosphère. (...) En comparant à différentes altitudes la concentration des particules d'origine terrestre et celle des particules d'origines extra-terrestre, on a pu avancer qu'à partir de 10 km d'altitude, l'aérosol d'origine extra-terrestre est prédominant.

OBS

Le terme "poussière" est généralement synonyme de particule. Il possède cependant aussi un sens spécifique, celui de "particule solide supérieure à un micron".

Spanish

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