17 KB4876 KB16 KB199820252006Đurić-Stanojević, BranislavaMijić, ZoranNovaković, VeliborRajšić, SlavicaTasić, Mirjanaštevilka:3letnik:536 stranistr. 401-405ISSN:1318-0207COBISSID:28085509URN:URN:NBN:SI:doc-G5SC6BF6enSlovensko kemijsko društvoActa chimica slovenicaaerosolianalizna kemijaecologyekologijakemija okoljamikroanalizazrakPhysico-chemical characterization of PMsub(10) and PMsub(2.5) in the Belgrade urban area|An extensive study on urban aerosols with the aim to determine the sources and provide a physico-chemical description of PM10 and PM2.5, present in the urban air of Belgrade, was performed. Daily aerosol samples were collected in four seasonal episodes at three representative places in the urban area of Belgrade in the period of 2002-2004. Suspended particles were sampled on pure Teflon filters by using a Mini-Vol air sampler (Airmetrics Co., Inc.; 5 L min-1 flow rate) and were analyzed by a JEOL JSM-5300 SEM via an energy dispersive X-ray microanalysis system (EDX). The airborne particulate matter was characterized from a physico-chemical point of view to supply information on the particle composition and the compounds carried on their surfaces. The combined use of microanalysis and statistical methods enabled identification of several groups of particles such as: soot, sulfates, Si-rich, metal-rich and biological particlesV urbanem okolju Beograda je bila opravljena obsežna raziskava aerosolov, da bi določili vire in fizikalno kemijske lastnosti prisotnih PM10 in PM2,5. V obdobju 2002-2004 smo dnevno zbirali aerosole na treh značilnih lokacijah v Beogradu, v štirih različnih letnih obdobjih. Suspendirane delce smo vzorčili s teflonskimi filtri s pomočjo vzorčevalnika Mini-Vol (Airmetrics Co., Inc., pretok 5 L min-1) in jih analizirali z energijsko disperzijskim rentgenskim sistemom (EDX) za mikroanalizo JEOL JSM-5300 SEM. S fizikalno-kemijsko karakterizacijo zračnih partikulatov smo dobili podatke o njihovi kemijski sestavi in snoveh na njihovi površini. Kombinacija mikroanalize in statističnih metod je omogočila identifikacijo različnih delcev kot so saje, delci z visoko vsebnostjo silicija, kovin ter delci biološkega izvoraTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaSlovensko kemijsko društvo