AAAR 34th Annual Conference
October 12 - October 16, 2015
Hyatt Regency
Minneapolis, Minnesota, USA
Abstract View
Mass Size-segregated of Sub-urban Aerosol of Continental Part of Balkans
DRAGANA ĐORđEVIć, Jelena Đuričić-Milanković, Ana Pantelić, Srđan Petrović, Andrea Gambaro, ICTM
Abstract Number: 634 Working Group: Remote and Regional Atmospheric Aerosols
Abstract The atmospheric aerosols impacts on human health, the earth’s radiation budget, the global climate and the effect of the planet energy balance and yet their mass size distributions and chemical characteristics are still inadequately understood. As a result of the various atmospheric lifetimes arising from the variety of the particle sizes of atmospheric aerosols, their global distribution shows large regional differences and their properties are poorly known. Urban areas are rich in anthropogenic sources of fine particles containing harmful substances.
Size-segregated sub-urban aerosol of continental part of Balkans’ was studied in the period March 2012 – December 2013. Aerosols were measured at the Observatory Zeleno Brdo – Belgrade (44049’N, 20027’E). The representative location is the highest point near Belgrade surrounded by wooded vegetation. Sampling device is away from other objects around it in a radius of 50 meters and ground covered with grass was chosen for investigating physical characteristics of collected particles. The influence of urban atmosphere of Belgrade on the selected measuring locations is minimized.
Low-pressure cascade impactor by Prof. Dr. Berner on 11 stages was used for samples collection. Next ranges (in µm) of size distributions PM0.0085 - 0.018, PM0.018 - 0.035, PM0.035 - 0.07, PM0.07 - 0.138, PM0.138 - 0.27, PM0.27 - 0.53, PM0.53 - 1.06, PM1.06 - 2.09, PM2.09 - 4.11, PM4.11 - 8.11, PM8.11 – 16 were measured. Aerosol samples were submitted to gravimetric measurements.
Distribution of masses shows the domination in the range PM0.53 - 1.06. Also in this interval are the highest extreme and outliers.