TERMIUM Plus®

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

PRECURSEUR ACIDE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1985-09-18

English

Subject field(s)
  • Air Pollution
CONT

Ambient precipitation should normally register at a pH of 5.7 when in equilibrium with existing carbon dioxide concentrations. But rising quantities of acid precursor entering the atmosphere from natural and anthropogenic sources may cause snows and rains to display pH readings from 3 to 5.

Key term(s)
  • acid rain precursor
  • acid precipitation precursor pollutant
  • precursor of acid rain
  • precursor of acid precipitation
  • acid deposition precursor
  • precursor to acid precipitation
  • precursor to acid rain
  • precursor of acids

French

Domaine(s)
  • Pollution de l'air
DEF

Polluant qui contribue à la formation d'un autre polluant qui, lui, est acide.

CONT

Les effets de la pollution atmosphérique transfrontière sur la visibilité sont reliés à la qualité de l'air plutôt qu'aux dépôts acides. Les précurseurs acides susceptibles d'influer sur la visibilité sont l'acide sulfurique et divers aérosols de sulfate d'ammonium.

OBS

L'azote et le soufre sont les deux principaux précurseurs acides.

OBS

Puisque le précurseur acidifie, on peut justifier, mais uniquement dans le domaine des pluies acides, la synonymie de "polluant acidifiant" avec les autres termes en entrée.

Key term(s)
  • précurseur des pluies acides
  • polluant précurseur de l'acidification
  • précurseur des dépôts acides

Spanish

Save record 1

Record 2 1985-05-30

English

Subject field(s)
  • Air Pollution
CONT

Acid precursors which can significantly affect visibility are sulphuric acid and various ammonium sulphate aerosols.

French

Domaine(s)
  • Pollution de l'air

Spanish

Save record 2

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