Source apportionment of PAHs and n-alkanes bound to PM1 collected near the Venice highway |
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Authors: | Gabrio Valotto Giancarlo Rampazzo Francesco Gonell Gianni Formenton Silvia Ficotto Giorgia Giraldo |
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Institution: | 1 Department of Environmental Sciences, Informatics and Statistics, Università Ca Foscari Venezia, I-30123 Venezia, Italy;2 Department of Molecular Sciences and Nanosystems, Università Ca Foscari Venezia, I-30123 Venezia, Italy;3 Dipartimento Provinciale di Venezia, Agenzia Regionale per la Prevenzione e Protezione Ambientale del Veneto, I-30174 Mestre, Italy |
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Abstract: | n-Alkanes and polycyclic aromatic hydrocarbons (PAHs) bound to atmospheric particulate matter (PM1) were investigated in a traffic site located in an urban area of Venice Province (Eastern Po Valley, Italy) during the cold season. Considering the critical situation affecting the Veneto Region concerning the atmospheric pollution and the general lack of information on PM1 composition and emission in this area, this experimental study aims at determining the source profile, their relative contributions and the dispersion of finer particles. Four sources were identified and quantified using the Positive Matrix Factorization receptor model: (1) mixed combustions related to the residential activities, (2) agricultural biomass burning in addition to the resuspension of anthropogenic and natural debris carried by the wind, (3) gasoline and (4) diesel traffic-related combustions. The role of local atmospheric circulation was also investigated to identify the pollutant sources. |
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Keywords: | PM1 PAHs n-Alkanes Diesel Gasoline Biomass burning |
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