TERMIUM Plus®

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natural source [1 record]

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Record 1 1991-01-18

English

Subject field(s)
  • Pollutants
OBS

Natural sources of acid precipitation can be divided into two categories - biogenic and non-biogenic sources. The main non-biogenic sources are geothermal emissions and wind-generated material. (...) Biogenic sources are even less well understood. A number of acid precipitation precursors of biological origin have been identified.

French

Domaine(s)
  • Agents de pollution
CONT

La quantité totale des émissions d'azote provenant des sources naturelles au Canada est estimée à environ 2 100 000 tonnes par an (c'est-à-dire environ trois fois et demie la quantité totale des émissions anthropiques d'oxyde d'azote) exprimé en NO2.

OBS

Le déterminant "naturel" s'emploie par opposition à "anthropique" qui signifie "modifié par intervention humaine".

Spanish

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