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Comptes Rendus Géoscience
Volume 339, n° 11-12
pages 764-774 (octobre 2007)
Doi : 10.1016/j.crte.2007.08.007
Received : 15 May 2007 ;  accepted : 12 August 2007
Air-quality measurements in megacities: Focus on gaseous organic and particulate pollutants and comparison between two contrasted cities, Paris and Beijing
Mesures de la qualité de l'air dans les mégapoles : zoom sur les polluants organiques gazeux et particulaires et comparaison entre deux villes contrastées, Paris et Pékin
 

Valérie Gros a, , Jean Sciare a, Tong Yu b
a Laboratoire des sciences du climat et de l'environnement (LSCE/IPSL), laboratoire CEA/CNRS/université de Versailles-Saint-Quentin, L'Orme des Merisiers, 91191 Gif-sur-Yvette, France 
b Beijing Municipal Environmental Monitoring Centre (BMEMC), Beijing, PR China 

Corresponding author.
Abstract

The rapid and important development of large urban areas (megacities'), especially in developing countries, causes and will cause serious air-quality problems. Pollutant measurements in these cities help to characterize the chemical nature and the quantity of these pollutants and to constrain air-quality models. This paper focuses on measurements of volatile organic compounds and aerosols that have an important impact on air quality. We present a brief review on existing measurements and experimental strategies in megacities and then we show results from recent measurement campaigns that took place in two contrasted megacities: Paris and Beijing.

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Résumé

Le développement rapide et important des grands centres urbains (« mégapoles »), tout particulièrement dans les pays émergents, cause et causera de sérieux problèmes de qualité de l'air. Les mesures des polluants gazeux et particulaires dans ces villes aident à caractériser la nature chimique et la quantité de ces polluants et à contraindre les modèles de prévision de la qualité de l'air. Dans cet article, nous nous intéresserons aux composés organiques volatils et aux aérosols qui ont un impact important sur la qualité de l'air. Nous présenterons tout d'abord une brève revue des mesures existantes et des stratégies expérimentales dans les mégapoles ; ensuite, nous montrerons des résultats obtenus lors de campagnes de mesures récentes dans deux mégapoles contrastées : Paris et Pékin.

The full text of this article is available in PDF format.

Keywords : Air quality, Volatile organic components (COV), Megacities, Paris (France), Beijing (China), Aerosols

Mots clés : Qualité de l'air, Composés organiques volatils (COV), Mégapoles, Paris (France), Pékin (Chine), Aérosols


1  Although carbon monoxide is by definition not an organic compound, it is in this study implicitely involved in the generic term VOCs' (as it has similar sources and chemical behaviour as the VOCs studied here).


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