Chemical characterization of PM10 fractions of urban aerosol

摘要: Abstract The goal of this investigation was to give an overview about the trace metal and total organic/inorganic carbon (TOC/TIC), water-soluble (WSOC) polyaromatic hydrocarbons (PAH) concentrations in PM10 aerosol fraction Budapest monitor monthly changes during sampling period, whether there is a tendency seasonal change concentrations. took place Budapest, Hungary between September 2004 August 2007 area with high traffic density. For sampling, high-volume sampler equipped head used. samples were taken onto quartz fiber filters. Each month, one sample collected. Sampling time 96 h, air intake 30 m 3 /h, resulting 2880 m sampled volume. To measure two types preparation used: microwave assisted aqua regia extraction water by sonication. In both cases, solutions analyzed using sector field inductively coupled plasma mass spectrometer (SF–ICP–MS). following 23 elements investigated: V, Cd, Zn, Cu, Ni, Sb, Sn, Cr, Pt, Pb, Te, Tl, U, Mn, Fe, Co, Ga, Rb, Sr, Mo, Ag, Bi, Li. Comparing data obtained from some other cities, measured found moderate concentration. extract, significant part zinc thallium found. During no proof element Trace similar concentration cities exception Cd which are present higher Budapest. TOC content amounted 30–50%, its value highest winter period due heating. yearly average almost constant over investigated but more than order magnitude.