Abstract
Chemical mass balance modeling (CMB) was applied to determine the PM10 sources and their contributions. PM10 samples were collected in Lecce (South Italy) during two monitoring campaigns performed in the months of July 2005 and February 2006. Nine source profiles and average mass concentration of the following chemical parameters: EC, OC, Cl - , NO 3 - , SO 4 2- , Na + , NH 4 + , K + , Mg 2+ , Ca 2+ , Al, Si, Ti, V, Mn, Fe, Cu, Pb, and Zn were used to run the Chemical Mass Balance (CMB 8 ) model. The results obtained by application of CMB 8.2 to one sample data (L21) are shown. The contributions to PM10 show that dominant contributor was traffic with 37% followed by petroleum industry with 19% and field burning with 16%. Minor source contributions were marine aerosol (1%), ammonium sulfate production (4%), ammonium nitrate production (11%), oilfired power plant (0.1%), gypsum handling (10%) and crustal (2%).
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