Ground based and airborne atmospheric measurements near bucharest (original) (raw)
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Measurements of Aerosols and Trace Gases in Southern Romania
Revista de Chimie
An intensive measurement campaign was performed during September 2014 in southern Romania in two different locations: Magurele, Ilfov County and Turceni, Gorj County. This paper presents one case study with analysis of the aerosol properties from in-situ, passive remote sensing and active remote sensing measurements. A Multiwavelength Raman Lidar (RALI) provided one hour averaged vertical profiles of extinction and backscatter from the 532 nm and 1064 nm channels in Magurele. The UV scanning Lidar (MILI) provided one hour averaged backscattered and extinction vertical profiles for Turceni. Planetary Boundary Layer Height (PBLH) was calculated using the altitude of the maximum negative gradient of the range corrected signal. Mass concentrations for different aerosol species (organics, nitrate, sulphate, ammonium and chloride) were obtained from in-situ measurements using Aerosol Mass Spectrometer located in M�gurele and Aerosol Chemical Speciation Monitor (ACSM) located in Turceni.
The Airborne ROmanian Measurements of Aerosols and Trace gases (AROMAT) campaigns
2020
vations, which constrains the investigated accuracy to within 28%. In addition to NO 2 , we also measured significant amounts of SO 2 in the Jiu Valley, as well as a hotspot of H 2 CO in the center of Bucharest. For these two species, we conclude that the best validation strategy would consist in deploying ground-based measurement systems at key locations which the AROMAT observations help identify.
Optical Properties of Aerosols from Lidar Data and Other Ground-based Instruments Near Bucharest
Chemical engineering transactions, 2008
The aerosols in the lower troposphere are one of the major issues studied by scientific community mainly because of their effect on human health and their role in climate change. They have also a determining effect on visibility and contribute to the soiling of monuments. Observations and model calculations show that the increase in the atmospheric aerosol burden is delaying the global warming expected from the increase in greenhouse gasses. The aim of present paper is to analyze the aerosol characteristics of aerosol in 0-5 km altitude interval, at Magurele-Bucharest, Romania (44.35 N, 26.03 E) during 2007, using ground-based Lidar (Light Detection and Ranging) and Sun-photometer data. The optical thickness show seasonal variation resulting from different aerosol sources, long range transport and local atmospheric environment. Saharan dust and biomass burning can be identified using back trajectories analysis.
Journal of Environmental Protection and Ecology, 2012
the western part of romania, i.e. Banat, is one of the most developed industrial areas of romania, with many urban agglomerations (timisoara, arad, lugoj, Jimbolia). thus, the regional air pollution monitoring and assessment are of paramount importance for the sustainable development of the society in the region. This work is focused on the identification of the air pollution regimes and specificity, as well as on the main driven factors. Representative ground measurements data sets of o 3 , no x , so 2 and PM10, will be analysed and presented in the context of regional photo-chemistry potential. The effect of the traffic through an urban region will be also analysed. Finally, the complementarily necessity of the lIDar-based observations for the evaluation of the vertical mixing structures, planetary boundary layer dynamics, and generated specific regional effects in the region will be demonstrated. Keywords: no x , lIDar, regional air pollution, aerosols, planetary boundary layer. aIMs anD BaCKGrounD the main purpose of this research is to identify the air pollution regimes and their specificity in the Timisoara city (urban episodes) and the majors sources of the pollution. In situ measurements were accomplished in different relevant locations in Timisoara, with or without traffic, in order to identify the traffic influences on air quality. Point monitor measurement equipments were used for monitoring the pollution level at ground surface and allowing the identification of pollution sources. our conclusion is that in spite of the usefulness of these measured values and the information generated by the processing of the data there is not sufficient relevant information for identifying at a regional scale the dynamics of the atmosphere over the urban area and more particular the aerosols height distribution and their
Atmosphere, 2020
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 pollutio...
Atmospheric Chemistry and Physics
Aerosol particles can sensitively influence the Earth's radiation budget by scattering and absorption of solar radiation. The aerosol impact is described as utilizing the wavelength-dependent aerosol particle scattering coefficient Published by Copernicus Publications on behalf of the European Geosciences Union. the secure helicopter flights during the summer campaign. The authors, furthermore, thank Dieter Schell of enviscope GmbH, for his expertise. We also thank Anke Rödger of TROPOS, for providing and conducting the filter measurement samples of Melpitz. Joel C. Corbin and Martin Gysel-Beer received financial support from the ERC (grant no. 615922-BLACARAT), the ACTRIS2 project funded by the EU (H2020; grant no. 654109), and the Swiss State Secretariat for Education, Research, and Innovation (SERI; contract no. 15.0159-1). Financial support. This research has been supported by the European Commission, FP7 Ideas: European Research Council (BLACARAT; grant no. 615922), the European Commission, European Research Council (ACTRIS-2; grant no. 654109), and the Staatssekretariat für Bildung, Forschung und Innovation (grant no. 15.0159-1). Review statement. This paper was edited by Zhanqing Li and reviewed by three anonymous referees.