Assessment of Pollution of the Rustavi City’s Atmosphere with Microaerosols
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32920
Assessment of Pollution of the Rustavi City’s Atmosphere with Microaerosols

Authors: N. Gigauri, A. Surmava

Abstract:

According to observational data, experimental measurements and numerical modelling, the pollution of one of the industrial centers of Georgia, Rustavi City’s atmosphere with micro aerosols are assessed. Monthly, daily and hourly changes of the concentrations of PM2.5 and PM10 in the city atmosphere are analyzed. It is accepted that PM2.5 concentrations are always lower than PM10 concentrations, but their change curve is the same. In addition, it has been noted that the maximum concentrations of particles in the atmosphere of Rustavi city will be reached at any part of the day, which is determined by the total impact of the traffic flow and industrial facilities. Through numerical modelling, the influence of background western light air, gentle and fresh breeze on the distribution of particulate matter in the atmosphere was calculated. Calculations showed that background light air and gentle breeze lead to an increase the concentrations of microaerosols in the city's atmosphere, while fresh breeze contributes to the dispersion of dusty clouds. As a result, the level of dust in the city is decreasing, but the distribution area is expanding.

Keywords: Air pollution, numerical modeling, experimental measurement, PM2.5, PM10.

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 123

References:


[1] National Environmental Agency. 2020-2022 Action Plan for the Improvement of Air Quality in Rustavi, p. 26, https://mepa.gov.ge/Ge/PublicInformation/27987.
[2] http://air.gov.ge/reports_page
[3] Gigauri N., Kukhalashvili V., Surmava A., Intskirveli L., Pipia M. Spatial distribution of PM10 და PM2.5-concentrations in the atmosphere of Tbilisi city according to routine observations and en-route measurement data. Collection of scientific reviewed works of the Institute of Hydrometeorology, Georgian Technical University, No. 131, 2021, pp.44-50.
[4] Surmava A., Intskirveli L., Kukhalashvili V., Gigauri N. Numerical Investigation of Meso- and Microscale Diffusion of Tbilisi Dust. Annals of Agrarian Science, v1.8, N.3, 2020. ISSN 1512-1887. pp. 295-302.
[5] Surmava A., Kukhalashvili V., Gigauri N., Intskirveli L., Kordzakhia G. Numerical Modeling of Dust Propagation in the Atmosphere of a City with Complex Terrain. The Case of Background Eastern Light Air. Journal of Applied Mathematics and Physics. Vol. 8 No.7, 2020, pp. 1222-1228. https://doi.org/10.4236/jamp.2020.87092.