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Carlos echeverri calidad del aire6/15/2023 ![]() ![]() In addition, PM2.5 was associated with two mixed sources: fuel combustion and fertilizer industry (S, V, P, K+ and SO42-), and a secondary source and civil works (Ca2+ and NO3-). Similar sources were obtained for both PM fractions: marine spray (Cl and Na+), resuspended soil (Al, Si, Ti, Fe) and vehicular traffic (BC, Mn and Zn). The greatest contributions for PM10 were BC, Cl and Ca, and for PM2.5 were BC, S and Cl. The average concentration of PM10 was 46.6 µg/m3 and 12.0 µg/m3 for PM2.5. The Positive Matrix Factorization (PMF) model estimated the PM sources contributions. ![]() Major and trace elements were quantified using X-ray fluorescence, ionic species with ion chromatography and black Carbon (BC) with the reflectance method. Samples were recolected for periods of 48 hours, at the Universidad de la Costa, with the Partisol 2000-iD equipment and 47 mm Teflon filters. In this study, the source contribution of particulate material (PM10 and PM2.5) in Barranquilla was quantified. Air pollution has become a major problem in urban areas due to increasing industrialization and urbanization.
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