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Megacities as hot spots of air pollution in the East Mediterranean

Kanakidou, Maria
Mihalopoulos, Nikolaos
Kındap, Tayfun
Im, Ulas
Vrekoussis, Mihalis
Gerasopoulos, Evangelos
Dermitzaki, Eirini
Ünal, Alper
Koçak, Mustafa
Markakis, Kostas
Melas, Dimitris
Kouvarakis, Georgios
Youssef, Ahmed F.
Richter, Andreas
Hatzianastassiou, Nikolaos
Hilboll, Andreas
Ebojie, Felix
Wittrock, Folkard
von Savigny, Christian
Burrows, John P.
Ladstaetter-Weissenmayer, Annette
Moubasher, Hani
This paper provides a comprehensive overview of the actual knowledge on the atmospheric pollution sources, transport, transformation and levels in the East Mediterranean. It focuses both on the background atmosphere and on the similarities and differences between the urban areas that exhibited important urbanization the past years: the two megacities Istanbul, Cairo and the Athens extended area. Ground-based observations are combined with satellite data and atmospheric modeling. The overall evaluation pointed out that long and regional range transport of natural and anthropogenic pollution sources have about similar importance with local sources for the background air pollution levels in the area. (C) 2010 Elsevier Ltd. All rights reserved.