Author details

technology for improving the information quality of air-monitoring systems. The combination of the three sensor networks mentioned above incorporated in a joint air-quality monitoring

Finally, we have to note that aerosol lidar maps could provide large amounts of additional information about the near-surface atmosphere. They contain data on the near-surface dynamics of air masses, driven by the surface winds but affected by the city structures. This is an important view of a better evaluation of the pollution transport over an urban area. Also, applying multiwavelength lidar mapping, one could contribute to the characterization

Summarizing the results of lidar measurements presented here, one can draw the following

1. Lidar mapping of near-surface aerosols, based on (quasi)horizontal and vertical lidar scanning using the two lidar systems of the LRL of IE-BAS, appears to be an effective approach to the accurate and reliable determination of the density, spatial distribution, and temporal dynamics of close-to-ground aerosols, covering broad urban areas in Sofia

2. The analysis of the two-dimensional aerosol lidar maps obtained, as superposed on the topological map of Sofia region, shows a good correlation between the aerosol density distribution and the locations of important sources of aerosol pollutions in the zones of observation, such as city streets with intense traffic, densely populated areas,

3. Combining the near-surface aerosol lidar mapping technology with the existing set of insitu air-pollution detectors and related numerical models and computing facilities, is shown to be a promising synergistic approach to the development of more efficient

The financial support of the Municipality of Sofia is gratefully acknowledged. The support for EARLINET in the ACTRIS Research Infrastructure Project by the European Union's Horizon 2020 research and innovation program under grant agreement no. 654169 and previously under grant agreement no. 262254 in the 7th Framework Programme (FP7/2007–2013) is also

of the aerosols' size parameters, as well as to identifying their types and origin.

system would provide a synergistic aerosol characterization.

modern city air-quality monitoring systems.

5. Conclusions

104 Aerosols - Science and Case Studies

conclusions:

region.

etc.

Acknowledgments

acknowledged.

Tanja Dreischuh\*, Ivan Grigorov, Zahary Peshev, Atanaska Deleva, Georgi Kolarov and Dimitar Stoyanov

\*Address all correspondence to: tanjad@ie.bas.bg

Institute of Electronics, Bulgarian Academy of Sciences, Sofia, Bulgaria
