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| Titel |
Modeling air pollution in Lebanon: evaluation at a suburban site in Beirut during summer |
| VerfasserIn |
A. Waked, C. Seigneur, F. Couvidat, Y. Kim, K. Sartelet, C. Afif, A. Borbon, P. Formenti, S. Sauvage |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 13, no. 12 ; Nr. 13, no. 12 (2013-06-17), S.5873-5886 |
| Datensatznummer |
250018708
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| Publikation (Nr.) |
 copernicus.org/acp-13-5873-2013.pdf |
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| Zusammenfassung |
| Beirut, the capital of Lebanon, which is located on the eastern shore
of the Mediterranean basin, experiences high air pollution episodes. Annual
average concentrations of coarse and fine particulate matter (PM2.5) as
well as nitrogen oxides (NOx) often exceed the World Health
Organization (WHO) guidelines. Therefore, improving air quality in this
region is essential. The Polyphemus/Polair3D modeling system is used here to
investigate air pollution episodes in Beirut during 2 to 18 July 2011. The
modeling domain covers two nested grids of 1 and 5 km horizontal resolution
over greater Beirut and Lebanon, respectively. The anthropogenic
emission inventory was developed earlier (Waked et al., 2012). The Weather
and Research Forecasting (WRF) model is used to generate the meteorological
fields and the Model of Emissions of Gases and Aerosols from Nature (MEGAN)
is used for biogenic emissions. The results of the study are compared to
measurements from a field campaign conducted in the suburb of Beirut during
2–18 July 2011. The model reproduces satisfactorily the concentrations of
most gaseous pollutants, the total mass of PM2.5 as well as PM2.5
elemental carbon (EC), organic carbon (OC), and sulfate. Ozone
concentrations are overestimated and it appears that this overestimation
results mainly from the boundary conditions. |
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