Influence of local and regional sources on the observed spatial and temporal variability of size resolved atmospheric aerosol mass concentrations and water-soluble species in the Athens metropolitan area

Eleftheriadis, Konstantinos; Ochsenkühn, Klaus‐Michael; Lymperopoulou, Theopisti; Karanasiou, Angeliki; Razos, Panayiotis; Ochsenkühn-Petropoulou, Maria

doi:10.1016/j.atmosenv.2014.08.013

Cited by 62 publications

(28 citation statements)

References 48 publications

(48 reference statements)

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“…Furthermore, Cl -, NO 3 -and Mg 2+ levels found in PM 10 fraction in the present study are in agreement with those reported in previous studies conducted in Athenian suburban areas (Theodosi et al, 2011;Eleftheriadis et al, 2014 Saffari et al (2013), this trend is most likely connected with the regional secondary origin of the aforementioned ions, since they constitute components of aged atmospheric aerosol and are mostly related to largescale regional transport processes rather than local primary emissions (Ricard et al, 2002;Eleftheriadis et al, 2014 and references within). Though, it should be noted that differences in particle chemical composition exist even between ambientgenerated particles that have infiltrated indoors and their corresponding ambient particles.…”

Section: Pm 10supporting

confidence: 82%

A Pilot Investigation of PM Indoor/Outdoor Mass Concentration and Chemical Analysis during a Period of Extensive Fireplace Use in Athens

Saraga

Makrogkika

Karavoltsos

et al. 2015

Aerosol Air Qual. Res.

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During the recent economic crisis in Greece, fireplaces and wood stoves have been extensively used for domestic heating even in densely populated cities like Athens. Throughout the last winter periods (especially winter 2012-2013), a persistent phenomenon of smoke haze covering many urban and suburban areas of the city was observed. In the framework of the present study, indoor and outdoor PM 10 and PM 2.5 measurements were conducted in an apartment in suburban Athens during December 2012-February 2013 for two periods. One period with minimal or no wood burning at fireplaces and another period with intense wood burning taking place in the area. The results highlighted the impact of biomass burning on PM mass concentration in the ambient atmosphere as well as the indoor air. OC/EC and K + /EC ratios for both (indoor and outdoor) particle fractions revealed their origin from biomass burning. The most abundant ions were SO 4 2-and NO 3 -followed by Ca 2+ , PO 4 3-, Na + for indoor and outdoor particles with levels typical for this suburban area. Finally, Fe strongly dominated in both indoor and outdoor air while elemental enrichment factors highlighted the anthropogenic origin of trace elements. Indoor to outdoor concentration ratios, especially during the period of extensive fireplace use, showed that carbonaceous particles and some trace species (Cu, K + , Na + ) were released in the indoor air.

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Section: Pm 10supporting

confidence: 82%

A Pilot Investigation of PM Indoor/Outdoor Mass Concentration and Chemical Analysis during a Period of Extensive Fireplace Use in Athens

Saraga

Makrogkika

Karavoltsos

et al. 2015

Aerosol Air Qual. Res.

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“…The Cl/Na ratio measured in the factor is equal to 1.9 that is very close to the 1.8 value of the fresh sea salt . Fresh sea salt is mainly found on fresh particles and has no seasonal trend.…”

Section: Resultssupporting

confidence: 69%

XRF characterization and source apportionment of PM10 samples collected in a coastal city

et al. 2017

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In the current study, a yearlong measurement campaign was conducted during the year 2012 in a medium sized coastal Greek city, Patras. PM10 samples were collected once every 3 days, and a number of those samples were analyzed by the use of a commercial X‐ray fluorescence system, Epsilon 5 by PANalytical, The Netherlands. PMF model was used for source identification. Because the uncertainty of the measurements is used as input in the model, special emphasis was given in its accurate estimation. Seven PM10 emission sources were identified using PMF 5.0 and were, namely, mineral dust (15%), road dust (4.6%), shipping emissions (3.8%), sea salt (11.9%), biomass burning (6.9%), traffic (46.2%), and sulfates (11.6%). The concentration weighted approach was used to investigate if the contributions of the sources identified in the area are affected by long range transportation events. A methodology of estimating the uncertainty of the day to day source contributions is proposed in this study. A comparison between the 24‐hr contribution for the mineral dust factor provided by the model and the calculated contributions for the same factor deduced from appropriate equations (chemical reconstruction) can be used for this purpose. The analysis showed that when the concentrations of the elements associated with the mineral dust source are close to their lowest value, the model assigns zero contribution to the mineral dust source. Following this methodology in the current study, 6 points were identified as bad fitting points, a number that represents less than 10% of the total measurements.

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“…Particulate matter is a complex mixture of inorganic and organic components that originate from both natural and anthropogenic sources (Pan et al 2013;Wang et al 2016). There is an increasing concern of PM due to its impact on the climate, visibility, ecosystems and human health (Ş ahin et al 2012;Eleftheriadis et al 2014;Wang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Seasonal variations and sources study by way of back trajectories and ANOVA for ambient air pollutants (particulates and metallic elements) within a mixed area at Longjing, central Taiwan: 1-year observation

Fang

Zhuang

et al. 2016

Environ Geochem Health

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This study measured the concentrations of particulates and metallic elements in ambient air by using PS-1 sampler (TSP) at Longjing area. And this study focuses on the collection of ambient air particulates, metallic elements, particulate-bound mercury Hg(p), concentrations. In addition, the sources of ambient pollutants by way of back trajectory analysis are found. Moreover, test mean concentration variance differences for metallic elements (PM, Hg(p), Mn, Fe, Zn, Cr, Cu, and Pb) among the four seasons (spring, summer, autumn and winter) through ANOVA are calculated. The result indicates that the average highest particulate concentration occurred in winter season, and the order was winter > spring > autumn > summer, and the mostly highest average metallic element (Mn, Fe, Zn, Cr, Cu, Pb) concentrations occurred in autumn. Moreover, the mostly average lowest metallic element concentrations occurred in summer. In addition, the above results of backward trajectories that the major particulate pollutants parcel mainly come from northeastern Taiwan. Moreover, when comparing the results of the first half year to that of the second half year, the they indicated that all metallic elements displayed significant differences in concentrations except those of Hg(p), Mn, Fe, Zn. Finally, metallic element Hg(p) is the only one which showed no significant concentration difference from either seasonal variations or half-year observations.

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Influence of local and regional sources on the observed spatial and temporal variability of size resolved atmospheric aerosol mass concentrations and water-soluble species in the Athens metropolitan area

Cited by 62 publications

References 48 publications

A Pilot Investigation of PM Indoor/Outdoor Mass Concentration and Chemical Analysis during a Period of Extensive Fireplace Use in Athens

A Pilot Investigation of PM Indoor/Outdoor Mass Concentration and Chemical Analysis during a Period of Extensive Fireplace Use in Athens

XRF characterization and source apportionment of PM10 samples collected in a coastal city

Seasonal variations and sources study by way of back trajectories and ANOVA for ambient air pollutants (particulates and metallic elements) within a mixed area at Longjing, central Taiwan: 1-year observation

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