Next Article in Journal
Possible Increase of Vegetation Exposure to Spring Frost under Climate Change in Switzerland
Next Article in Special Issue
Monitoring of Gas Emissions in Light of an OEF Application
Previous Article in Journal
Statistical Analysis of Turbulence Characteristics over the Tropical Western Pacific Based on Radiosonde Data
Previous Article in Special Issue
Tropospheric Dust and Associated Atmospheric Circulations over the Mediterranean Region with Focus on Romania’s Territory
Open AccessArticle

Online Chemical Characterization and Source Identification of Summer and Winter Aerosols in Măgurele, Romania

1
Remote Sensing Department, National Institute of Research and Development for Optoelectronics INOE 2000, Str. Atomiştilor 409, Măgurele, RO077125 Ilfov, Romania
2
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
3
Department of Physics, Politehnica University of Bucharest, Str. Spl. Independenţei 313, RO061071 Bucureşti, Romania
4
Department of Chemistry and Biochemistry and Oeschger Centre for Climate Change Research, University of Bern, 3012 Bern, Switzerland
*
Author to whom correspondence should be addressed.
Atmosphere 2020, 11(4), 385; https://doi.org/10.3390/atmos11040385
Received: 10 March 2020 / Revised: 7 April 2020 / Accepted: 8 April 2020 / Published: 14 April 2020
(This article belongs to the Special Issue Air Quality in Romania)
Aerosols and organic source apportionment were characterized using data collected during two measurement campaigns. These campaigns were conducted during the summer and winter seasons at Măgurele, a site located southwest of Bucharest, the capital of Romania and one of the largest cities in southeastern Europe (raking seven in Europe based on population). The summer campaign was conducted between 7 June–18 July 2012, and the winter campaign from 14 January–6 February 2013. Approximately 50% of the organic fraction contribution to the total submicron particulate matter sampled by aerosol mass spectrometer was evidenced during both seasons. Submicronic organic aerosol sources were quantified using the positive matrix factorization approach. For warm (summer) and cold (winter) seasons, more than 50% from total organics was represented by oxidized factors. For the summer season, separate analyses were conducted on data influenced by urban and non-urban sources. The influence of pollution from Bucharest on the measurement site was observed in aerosol concentration and composition. The primary organic aerosols have different contribution percentage during summer, depending on their main origin. The influence of Bucharest, during summer, included cooking contribution of 13%. The periods with more regional influence were characterized by lower contribution from traffic and biomass burning in a total proportion of 28%. In winter, the influence of local non-traffic sources was dominant. For more than 99% of the measurements, the biomass burning indicator, f 60 , exceeded the background value, with residential heating being an important source in this area. Fossil fuel contribution was confirmed for one week during the winter campaign, when 14 C analysis of total and elemental carbon revealed the presence of 17% fossil contributions to total carbon. Mass spectrometry, 14 C and absorption data suggest biomass burning as the predominant primary source of organic aerosols for the winter season. View Full-Text
Keywords: aerosol chemical composition; aerosol sources; seasonal characteristics aerosol chemical composition; aerosol sources; seasonal characteristics
Show Figures

Figure 1

MDPI and ACS Style

Mărmureanu, L.; Vasilescu, J.; Slowik, J.; Prévôt, A.S.H.; Marin, C.A.; Antonescu, B.; Vlachou, A.; Nemuc, A.; Dandocsi, A.; Szidat, S. Online Chemical Characterization and Source Identification of Summer and Winter Aerosols in Măgurele, Romania. Atmosphere 2020, 11, 385. https://doi.org/10.3390/atmos11040385

AMA Style

Mărmureanu L, Vasilescu J, Slowik J, Prévôt ASH, Marin CA, Antonescu B, Vlachou A, Nemuc A, Dandocsi A, Szidat S. Online Chemical Characterization and Source Identification of Summer and Winter Aerosols in Măgurele, Romania. Atmosphere. 2020; 11(4):385. https://doi.org/10.3390/atmos11040385

Chicago/Turabian Style

Mărmureanu, Luminiţa; Vasilescu, Jeni; Slowik, Jay; Prévôt, André S.H.; Marin, Cristina A.; Antonescu, Bogdan; Vlachou, Athanasia; Nemuc, Anca; Dandocsi, Alexandru; Szidat, Sönke. 2020. "Online Chemical Characterization and Source Identification of Summer and Winter Aerosols in Măgurele, Romania" Atmosphere 11, no. 4: 385. https://doi.org/10.3390/atmos11040385

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop