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AIRBORNE SULPHUR DIOXIDE [1 record]

Record 1 1999-05-14

English

Subject field(s)
  • Air Pollution
  • Chemistry
CONT

Sulfur cycle. A series of processes in which atmospheric sulfur dioxide is oxidized to the trioxide, which combines with water and is washed out on to the earth's surface as sulfuric acid or sulfates; bacterial action converts the sulfates into hydrogen sulfide, which is then oxidized to sulfur dioxide.

OBS

SO2.

French

Domaine(s)
  • Pollution de l'air
  • Chimie
CONT

Cette étude, conduite en 1984, est une application de la méthode d'HAWKSWORTH et ROSE, basée sur la détection du SO2 atmosphérique par l'observation des lichens épiphytes dans la région lyonnaise.

OBS

La formule SO2 désigne spécifiquement l'anhydride sulfureux mais, comme ce dernier composé est le représentant le plus fréquent des différents composés du soufre, il prend souvent le sens générique de «soufre».

OBS

C'est sous forme de gaz qu'on retrouve généralement l'anhydride sulfureux.

OBS

SO2.

Spanish

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