Indoor and outdoor PM concentrations at a residential environment, in the Athens area

Diapouli, E; Chaloulakou, A; Spyrellis, N

dc.contributor.author	Diapouli, E	en
dc.contributor.author	Chaloulakou, A	en
dc.contributor.author	Spyrellis, N	en
dc.date.accessioned	2014-03-01T01:57:25Z
dc.date.available	2014-03-01T01:57:25Z
dc.date.issued	2008	en
dc.identifier.issn	1790-7632	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28415
dc.subject	PM10/PM2.5	en
dc.subject	indoor - outdoor	en
dc.subject	residential microenvironment	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	PARTICLE-SIZE CHARACTERIZATION	en
dc.subject.other	PARTICULATE MATTER	en
dc.subject.other	AIRBORNE PARTICLES	en
dc.subject.other	AIR-POLLUTION	en
dc.subject.other	EXPOSURE	en
dc.subject.other	FINLAND	en
dc.subject.other	GREECE	en
dc.subject.other	HOUSE	en
dc.title	Indoor and outdoor PM concentrations at a residential environment, in the Athens area	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The aim of the present work was to study exposure to PM in the indoor and outdoor microenvironment of a typical residence in the center of Athens. Simultaneous indoor and outdoor measurements of PM10 and PM2.5 were conducted, by the use of gravimetric and continuous samples, during October and November 2006. Moreover, air exchange rate was monitored continuously during the entire measurement period. The indoor and outdoor concentration levels were significant for both size fractions. Mean daily PM10 outdoor concentrations exceeded the E.U. 24-hr limit value for 84 % of the measured days, while the respective PM2.5 concentrations exceeded the 24-hr limit value set by the C.A.F.E. working group for 69 % of the measured days. PM10 and PM2.5 concentrations exhibited increased short-term variability with high peak concentrations during morning and afternoon/night rush hours. Indoor concentration levels seem to be mainly affected by PM of outdoor origin, since the calculated indoor-to-outdoor concentrations ratios (I/O) were much lower than 1.00 during all days and indoor and outdoor concentrations were highly correlated. This finding was also supported by the pattern of their diurnal cycles, which followed the outdoor ones, with a delay of approximately 1 hr. The results indicate increased PM concentration levels in the center of Athens, even in indoor microenvironments with no significant indoor sources and emphasize the need for a more extensive investigation of the Athens population exposure, for the protection of public health.	en
heal.publisher	GLOBAL NETWORK ENVIRONMENTAL SCIENCE & TECHNOLOGY	en
heal.journalName	GLOBAL NEST JOURNAL	en
dc.identifier.isi	ISI:000257936200010	en
dc.identifier.volume	10	en
dc.identifier.issue	2	en
dc.identifier.spage	201	en
dc.identifier.epage	208	en