2019
DOI: 10.5194/acp-19-901-2019
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Sources and processes that control the submicron organic aerosol composition in an urban Mediterranean environment (Athens): a high temporal-resolution chemical composition measurement study

Abstract: Abstract. Submicron aerosol chemical composition was studied during a year-long period (26 July 2016–31 July 2017) and two wintertime intensive campaigns (18 December 2013–21 February 2014 and 23 December 2015–17 February 2016), at a central site in Athens, Greece, using an Aerosol Chemical Speciation Monitor (ACSM). Concurrent measurements included a particle-into-liquid sampler (PILS-IC), a scanning mobility particle sizer (SMPS), an AE-33 Aethalometer, and ion chromatography analysis on 24 or 12 h filter sa… Show more

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Cited by 78 publications
(120 citation statements)
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“…6b, LO-OOA shows a good correlation (r 2 = 0.55) with eBC wb at high MO-OOA-to-sulfate ratio conditions during wintertime, in agreement with the case of MO-OOA, which suggests that wood burning emissions could also contribute to the LO-OOA formation during winter. This is consistent with freshly formed SOA originating from primary biomass burning emissions, as reported by previous studies (Crippa et al, 2013b;Zhang et al, 2015;Sun et al, 2018;Stavroulas et al, 2019). In summer, the LO-OOA concentrations present a strong positive temperature dependence, while the RH dependence is not clear, indicating that photochemical production of LO-OOA became more important in summer than in winter.…”
Section: Monthly and Seasonal Variations In Oa Factorssupporting
confidence: 91%
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“…6b, LO-OOA shows a good correlation (r 2 = 0.55) with eBC wb at high MO-OOA-to-sulfate ratio conditions during wintertime, in agreement with the case of MO-OOA, which suggests that wood burning emissions could also contribute to the LO-OOA formation during winter. This is consistent with freshly formed SOA originating from primary biomass burning emissions, as reported by previous studies (Crippa et al, 2013b;Zhang et al, 2015;Sun et al, 2018;Stavroulas et al, 2019). In summer, the LO-OOA concentrations present a strong positive temperature dependence, while the RH dependence is not clear, indicating that photochemical production of LO-OOA became more important in summer than in winter.…”
Section: Monthly and Seasonal Variations In Oa Factorssupporting
confidence: 91%
“…For high wind speed and low BBOA concentrations, the mean MO-OOA-to-sulfate ratio is close to 1, while it reaches up to 8 under high BBOA and low-to-medium wind speed. This is consistent with the assumption of an enhancement of MO-OOA formation in the presence of substantial biomass burning emissions, which have been reported as a major anthropogenic SOA source (Heringa et al, 2011;Tiitta et al, 2016;Bertrand et al, 2017;Stavroulas et al, 2019;Daellenbach et al, 2019). Actually, both MO-OOA and LO-OOA factors may be significantly influenced by wood burning emissions as they are displaying similar correlations with eBC wb for highest MO-OOA-to-sulfate ratios during wintertime ( Fig.…”
Section: Monthly and Seasonal Variations In Oa Factorssupporting
confidence: 90%
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“…For some of the Supersito campaigns, specific studies have already been published. We refer to for the SPC fall 2011 and BO winter 2013 campaigns, respectively, and to Sullivan et al (2016) for the SPC summer 2012 campaign. In this paper we focus on the organic aerosol (OA) component that represents the most abundant fraction of submicron particle mass for most of the campaigns, ranging from 33 % to 58 % of NR-PM 1 (concentration range: 1.8-18.4 µg m −3 ), consistent with the value found by Jimenez et al (2009), Ng et al (2010 and .…”
Section: Aerosol Mass Spectrometer Measurements and Apportionment Of mentioning
confidence: 99%
“…We focus on two aspects: the influence of biomass burning emissions on OOA components and the importance of the aqueous-phase processing in their formation and evolution. A more comprehensive analysis of the OOA features of particular IOPs is the object of specific publications Sullivan et al, 2016).…”
Section: Soa Sources and Their Evolutionmentioning
confidence: 99%