engleski

TWO YEARS (2013 – 2015) OF FINE AEROSOL MONITORING IN RIJEKA, CROATIA

In the city of Rijeka, Croatia, two-year aerosol pollution monitoring campaign was recently completed. During period from August 2013 to September 2015, 345 samples of fine fraction of aerosols were collected on stretched Teflon filters. All samples were analyzed by X-ray Fluorescence (XRF) technique and concentrations of 19 elements from Si to Pb were determined. Concentrations of black carbon were determined by Laser Integrated Plate Method. Concentrations of elements were compared with weather conditions such as wind speed and direction, precipitation and relative humidity and with city activities such as traffic and industrial activities. The results were statistically evaluated by means of Positive Matrix Factorization (PMF). Several anthropogenic sources were found such as secondary sulfates, industry, road traffic and smoke. The resulting annual average PM2.5 concentrations for years 2013, 2014 and 2015 do not exceed annual limit value of 25 μg m-3, which is defined by the EU Directive 2008/50/EC.

Rijeka; aerosols; PM2.5; XRF; meteorological conditions; traffic; industry

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