Lidar monitoring of air pollution over urban areas combined with in-situ sampling of particulate matter

  • 1 Institute of Electronics, Bulgarian Academy of Sciences, 72, Tsarigradsko Chaussee Blvd, Sofia, Bulgaria
  • 2 Faculty of Biology, St. Kliment Ohrdiski University of Sofia, 8, Dragan Tsankov Blvd, Sofia, Bulgaria 2


The object of this investigation was the synergy effect achieved by combining lidar monitoring of particulate matter (PM) pollution in atmospheric aerosol over urban areas (city of Sofia) with in-situ sampling. The lidar systems of the Laser Radar Laboratory (LRL) of the IE-BAS were used to scan at two laser wavelengths the horizontal and vertical aerosol distributions and long-distance transport. The results demonstrated the possibility of detailed fast remote monitoring and analysis of the air pollution over entire urban regions, providing fast estimates of the air pollution transport over the city, as well as detection of sources of extreme emissions. Once the place of high PM concentration was localized by the lidar, samples were taken using a Hygitest 106 (Maimex) – a high-efficiency portable device for sampling and concentration determination of PM in atmospheric aerosol. The data presented pertains to the winter period 2018 year. PM pollutions than 10 and 2.5 μm were under studied. The lidar maps created can be further used for tracing the full air mass transport carrying contaminations from various pollution sources (chemical, biological, dust, etc), distributed over the scanned region. Further, the sampling schedule was conformed with the seasons of the year, in order to reveal any characteristic seasonal hazardous microbial contamination.



  1. S. Fuzzi et all., Particulate matter, air quality and climate: lessons learned and future needs, Atmos. Chem. Phys., 15, 8217– 8299, 2015
  2. L.Raisi, M. Lazaridis, E. Katsivela, Relationship between airborne microbial and particulate matter concentrations in the ambient air at a mediterranean site, Global NEST Journal, Vol 12, No 1, pp 84-91, 2010
  3. Mazzoleni, C. Monitoring automotive particulate matter emissions with LiDAR: a review. Remote Sensing, 2 (4), 2010, 1077-1119.
  4. World Health Organization 2013, Health effectsof particulate matter (ISBN 978 92 890 0001 7)
  5. E. Stoineva, Emitions and air quality, Conference Air Quality and urban area in Sofia, 16 april 2015, Sofia
  6. Fröhlich-Nowoisky, Janine, et al. "High diversity of fungi in air particulate matter." Proceedings of the National Academy of Sciences 106.31, 2009, 12814-12819.
  7. Jaenicke, R. Abundance of cellular material and proteins in the atmosphere. Science, 308 (5718), 2005, 73-73.
  8. Hinds, W.C. Aerosol Technology: Properties. Behavior, and Measurement of airborne Particles (2nd. 1999)
  9. Pöschl, U. Atmospheric aerosols: composition, transformation, climate and health effects. Angewandte Chemie International Edition, 44(46), 2005, 7520-7540.

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