PM10 Source Identification: A Case of a Coastal City in Colombia

This paper assesses the spatial variation of EC, OC, major, and trace elements in an industrialized coastal city, allowing identification tracers PM10 emission sources. 83 samples (24h average) were collected on quartz filters during dry season using high-volume samplers. Major analyzed ICP-AES ICP-MS, whereas a thermal/optical carbon analyzer was used to determine OC EC. Chemical characterization major elements, SiO2, SO42-, MgO, CaO, showed high between sites. The abundance these confirmed effect exposed land resuspension road dust; mutually with production secondary organic aerosol (SOA). Trace values Cu, Pb, Mn, V, indicating influence traffic some industries (Cu) oil burning (V Mn). Enrichment Factor analysis revealed that Mg, P, S, Pb highly/moderately enriched substantial contribution anthropogenic Results diagnostic ratios PMF receptor model spatially obtained data suggested sources as traffic-related emissions, heavy fuel combustion, biomass burning, industrial processes. Back trajectory (HYSPLIT) indicated air masses coming from North-East region Atlantic Ocean principal origin.