Impact of the 2009 Attica wild fires on the air quality in urban Athens

Amiridis, V; Zerefos, C; Kazadzis, S; Gerasopoulos, E; Eleftheratos, K; Vrekoussis, M; Stohl, A; Mamouri, RE; Kokkalis, P; Papayannis, A; Eleftheriadis, K; Diapouli, E; Keramitsoglou, I; Kontoes, C; Kotroni, V; Lagouvardos, K; Marinou, E; Giannakaki, E; Kostopoulou, E; Giannakopoulos, C; Richter, A; Burrows, JP; Mihalopoulos, N

dc.contributor.author	Amiridis, V	en
dc.contributor.author	Zerefos, C	en
dc.contributor.author	Kazadzis, S	en
dc.contributor.author	Gerasopoulos, E	en
dc.contributor.author	Eleftheratos, K	en
dc.contributor.author	Vrekoussis, M	en
dc.contributor.author	Stohl, A	en
dc.contributor.author	Mamouri, RE	en
dc.contributor.author	Kokkalis, P	en
dc.contributor.author	Papayannis, A	en
dc.contributor.author	Eleftheriadis, K	en
dc.contributor.author	Diapouli, E	en
dc.contributor.author	Keramitsoglou, I	en
dc.contributor.author	Kontoes, C	en
dc.contributor.author	Kotroni, V	en
dc.contributor.author	Lagouvardos, K	en
dc.contributor.author	Marinou, E	en
dc.contributor.author	Giannakaki, E	en
dc.contributor.author	Kostopoulou, E	en
dc.contributor.author	Giannakopoulos, C	en
dc.contributor.author	Richter, A	en
dc.contributor.author	Burrows, JP	en
dc.contributor.author	Mihalopoulos, N	en
dc.date.accessioned	2014-03-01T02:09:19Z
dc.date.available	2014-03-01T02:09:19Z
dc.date.issued	2012	en
dc.identifier.issn	13522310	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29811
dc.subject	Aerosol	en
dc.subject	Biomass burning	en
dc.subject	Photochemistry	en
dc.subject	Pollution	en
dc.subject	Radiation	en
dc.subject.other	Aerosol optical depths	en
dc.subject.other	Aerosol optical property	en
dc.subject.other	Air quality measurements	en
dc.subject.other	Biomass burning	en
dc.subject.other	Free troposphere	en
dc.subject.other	Gaseous phase	en
dc.subject.other	Ground based	en
dc.subject.other	In-situ	en
dc.subject.other	Lidar measurements	en
dc.subject.other	Lidar ratio	en
dc.subject.other	Meteorological data	en
dc.subject.other	Photochemical process	en
dc.subject.other	Single scattering albedo	en
dc.subject.other	Smoke dispersion	en
dc.subject.other	Smoke particles	en
dc.subject.other	Smoke plume	en
dc.subject.other	Solar irradiances	en
dc.subject.other	Surface radiation	en
dc.subject.other	Typical urban	en
dc.subject.other	Typical values	en
dc.subject.other	UV wavelength ranges	en
dc.subject.other	Wild fire	en
dc.subject.other	Aerosols	en
dc.subject.other	Air quality	en
dc.subject.other	Atmospherics	en
dc.subject.other	Heat radiation	en
dc.subject.other	Meteorology	en
dc.subject.other	Optical properties	en
dc.subject.other	Optical radar	en
dc.subject.other	Photochemical reactions	en
dc.subject.other	Pollution	en
dc.subject.other	Satellite imagery	en
dc.subject.other	Smoke	en
dc.subject.other	Solar radiation	en
dc.subject.other	Atmospheric aerosols	en
dc.subject.other	advection	en
dc.subject.other	aerosol	en
dc.subject.other	air quality	en
dc.subject.other	albedo	en
dc.subject.other	atmospheric pollution	en
dc.subject.other	biomass burning	en
dc.subject.other	brightness temperature	en
dc.subject.other	clear sky	en
dc.subject.other	dispersion	en
dc.subject.other	in situ measurement	en
dc.subject.other	irradiance	en
dc.subject.other	lidar	en
dc.subject.other	meteorology	en
dc.subject.other	photochemistry	en
dc.subject.other	photometer	en
dc.subject.other	remote sensing	en
dc.subject.other	satellite imagery	en
dc.subject.other	scattering	en
dc.subject.other	smoke	en
dc.subject.other	solar radiation	en
dc.subject.other	troposphere	en
dc.subject.other	ultraviolet radiation	en
dc.subject.other	urban area	en
dc.subject.other	wildfire	en
dc.subject.other	aerosol	en
dc.subject.other	air quality	en
dc.subject.other	article	en
dc.subject.other	attica wild fire	en
dc.subject.other	fire	en
dc.subject.other	Greece	en
dc.subject.other	imagery	en
dc.subject.other	meteorology	en
dc.subject.other	optics	en
dc.subject.other	photometry	en
dc.subject.other	priority journal	en
dc.subject.other	radiation	en
dc.subject.other	smoke	en
dc.subject.other	solar radiation	en
dc.subject.other	urban area	en
dc.subject.other	Athens [Attica]	en
dc.subject.other	Attica	en
dc.subject.other	Greece	en
dc.title	Impact of the 2009 Attica wild fires on the air quality in urban Athens	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.atmosenv.2011.07.056	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.atmosenv.2011.07.056	en
heal.publicationDate	2012	en
heal.abstract	At the end of August 2009, wild fires ravaged the north-eastern fringes of Athens destroying invaluable forest wealth of the Greek capital. In this work, the impact of these fires on the air quality of Athens and surface radiation levels is examined. Satellite imagery, smoke dispersion modeling and meteorological data confirm the advection of smoke under cloud-free conditions over the city of Athens. Lidar measurements showed that the smoke plume dispersed in the free troposphere and lofted over the city reaching heights between 2 and 4 km. Ground-based sunphotometric measurements showed extreme aerosol optical depth, reaching nearly 6 in the UV wavelength range, accompanied by a reduction up to 70% of solar irradiance at ground. The intensive aerosol optical properties, namely the ångström exponent, the lidar ratio, and the single scattering albedo, showed typical values for highly absorbing fresh smoke particles. In-situ air quality measurements revealed the impact of the smoke plume down to the surface with a slight delay on both the particulate and gaseous phase. Surface aerosols increase was encountered mainly in the fine mode with prominent elevation of OC and EC levels. Photochemical processes, studied via NOx titration of O3, were also shown to be different compared to typical urban photochemistry. © 2011 Elsevier Ltd.	en
heal.journalName	Atmospheric Environment	en
dc.identifier.doi	10.1016/j.atmosenv.2011.07.056	en
dc.identifier.volume	46	en
dc.identifier.spage	536	en
dc.identifier.epage	544	en