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Le Risque De Destruction De La Couche D'Ozone

Author

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  • Sigismund DUMA

    (Ecological University of Deva, Romania)

Abstract

L’ozone est une molécule simple, constituée de trois atomes d’oxygene - O3. Avec le peroxyde d’hydrogene H2O2 (l’eau oxygénée) et du radical ·OH, il représente la catégorie des plus puissants oxydants atmosphériques. Avec les oxydes d’azote, le formaldéhyde, l’acide sulfurique, les nitrates et le peroxyde-acétyle, l’ozone constitue une des plus toxiques combinaisons, connues sous le nom de brouillard oxydant ou le smog photochimique, consigné pour la premiere fois dans la ville de Los Angeles, raison pour laquelle elle s’appelle aussi le smog L.A. La concentration maximale de l’ozone est rencontrée dans la stratosphere, a une hauteur de 40-55 km, dans la zone de l’équateur et a 25 km, dans la zone des pôles, et a le nom d’« ozonosphere ».

Suggested Citation

  • Sigismund DUMA, 2009. "Le Risque De Destruction De La Couche D'Ozone," Revista Economica, Lucian Blaga University of Sibiu, Faculty of Economic Sciences, vol. 48(6), pages 61-72.
    • Handle: RePEc:blg:reveco:v:48:y:2009:i:6:p:61-72
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    File URL: http://eccsf.ulbsibiu.ro/RePEc/blg/reveco/488Duma.pdf
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