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An overview of the PM10 pollution problem, in the Metropolitan Area of Athens, Greece. Assessment of controlling factors and potential impact of long range transport

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dc.contributor.author Grivas, G en
dc.contributor.author Chaloulakou, A en
dc.contributor.author Kassomenos, P en
dc.date.accessioned 2014-03-01T01:27:55Z
dc.date.available 2014-03-01T01:27:55Z
dc.date.issued 2008 en
dc.identifier.issn 00489697 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/18635
dc.subject Air quality standards en
dc.subject Athens en
dc.subject Emission sources en
dc.subject Long range transport en
dc.subject Pm10 en
dc.subject Spatial and temporal variation en
dc.subject.other Agglomeration en
dc.subject.other Concentration (process) en
dc.subject.other Standards en
dc.subject.other Statistical methods en
dc.subject.other Air quality standards en
dc.subject.other Emission sources en
dc.subject.other Long range transport en
dc.subject.other Spatial and temporal variation en
dc.subject.other Air pollution en
dc.subject.other air quality en
dc.subject.other assessment method en
dc.subject.other atmospheric pollution en
dc.subject.other emission en
dc.subject.other long range transport en
dc.subject.other metropolitan area en
dc.subject.other particulate matter en
dc.subject.other pollutant source en
dc.subject.other seasonal variation en
dc.subject.other spatial variation en
dc.subject.other standard (reference) en
dc.subject.other air monitor en
dc.subject.other air pollution en
dc.subject.other air quality en
dc.subject.other article en
dc.subject.other combustion en
dc.subject.other environmental impact en
dc.subject.other Greece en
dc.subject.other particulate matter en
dc.subject.other pollution transport en
dc.subject.other priority journal en
dc.subject.other traffic en
dc.subject.other urban area en
dc.subject.other air en
dc.subject.other air pollutant en
dc.subject.other chemistry en
dc.subject.other city en
dc.subject.other cluster analysis en
dc.subject.other environmental monitoring en
dc.subject.other particle size en
dc.subject.other season en
dc.subject.other Athens [Attica] en
dc.subject.other Attica en
dc.subject.other Eurasia en
dc.subject.other Europe en
dc.subject.other Greece en
dc.subject.other Southern Europe en
dc.subject.other Air Movements en
dc.subject.other Air Pollutants en
dc.subject.other Cities en
dc.subject.other Cluster Analysis en
dc.subject.other Environmental Monitoring en
dc.subject.other Greece en
dc.subject.other Particle Size en
dc.subject.other Particulate Matter en
dc.subject.other Seasons en
dc.title An overview of the PM10 pollution problem, in the Metropolitan Area of Athens, Greece. Assessment of controlling factors and potential impact of long range transport en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.scitotenv.2007.08.048 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.scitotenv.2007.08.048 en
heal.publicationDate 2008 en
heal.abstract The present study analyzes PM10 concentration data collected by the Greek air quality monitoring network at 8 sites over the Greater Athens Area, for the period of 2001-2004. The primary objectives were to assess the degree of compliance with the EU-legislated air quality standard for PM10 and also provide an overall statistical examination of the factors controlling the seasonal and spatial variation of concentrations, over the wider urban agglomeration. Daily concentrations, averaged over the whole study period, ranged between 32.3 and 60.9 μg m-3. The four-year average concentration of PM10 at five sites exceeded the annual limit value of 40 μg m-3, while most of the sites surpassed the allowed percentage of exceedances of the daily limit value (50 μg m-3), for each of the four years. The seasonal variation of PM10 levels was not found to be uniform across the eight sites, with average cold-period concentrations being higher at four of them and warm period concentrations being significantly higher at three sites, which also displayed recurring annual variation of monthly concentrations. Concentration levels displayed moderate spatial heterogeneity. Nevertheless significant inter-site correlations were observed (ranging between 0.55 and 085). The determination of the spatial correlation levels relied mainly on site types rather than on inter-site distances. Monitoring sites were classified accordingly using cluster analysis in two groups presenting distinct spatiotemporal variation and affected by different particle formation processes. The group including urban sites was mainly affected by primary, combustion-related processes and especially vehicular traffic, as it was also deduced through the examination of the diurnal distribution of particulate levels and through factor analysis. On the contrary, suburban background sites seemed more affected by particle transport from more polluted neighboring areas and secondary particle formation through gaseous precursors, both processes aided from favoring meteorological conditions. The association of the PM10 levels with backwards trajectories was also examined, in an attempt to account for the possible long range transport of particles in Athens. It was found that a notable part of area-wide episodic events could be attributed to trans-boundary transport of particles, with the origins of some severe dust outbreaks traced back to the Sahara desert and the Western Mediterranean. © 2007 Elsevier B.V. All rights reserved. en
heal.journalName Science of the Total Environment en
dc.identifier.doi 10.1016/j.scitotenv.2007.08.048 en
dc.identifier.volume 389 en
dc.identifier.issue 1 en
dc.identifier.spage 165 en
dc.identifier.epage 177 en


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