The paper describes the characterization of polycyclic aromatic hydrocarbons (PAHs) in atmospheric aerosol samples using Gas Chromatography-Mass Spectrometry analysis. A data handling of GC/MS signals based on Experimental Autocovariance Function (EACVF) is described in order to directly characterize PAHs with a simple and reliable method suitable for processing large batches of samples. The method was successfully applied to 42 aerosol samples collected in different seasons (summer, fall and winter) in two locations in Northern Italy: Milan, a large urban area, and Oasi Le Bine, a rural site. The reliability of the EACVF results was verified by comparison with the values computed with the conventional GC/MS signal treatment and the data of independent studies. Two main emission sources were identified and described by PAH concentration profiles: the road traffic source (TR), characterized by high contributions of FLNT, PYR and CHR, and the residential combustion (COMB) mainly containing pyrogenic high molecular weight PAHs, i.e., CHR, BaP, BeP, BbF and BkF. In addition, some PAH diagnostic ratios were directly computed for the EACVF plot, to distinguish between traffic and combustion dominated emissions, i.e. the ratios CHR/BaP, PYR/BaP and PYR/BeP
Pietrogrande MC, Perrone MG, Sangiorgi G, Ferrero L, & Bolzacchini E (2014). Data handling of GC/MS signals for characterization of PAH sources in Northern Italy aerosols. TALANTA, 120, 283-288 [10.1016/j.talanta.2013.12.010].
Citazione: | Pietrogrande MC, Perrone MG, Sangiorgi G, Ferrero L, & Bolzacchini E (2014). Data handling of GC/MS signals for characterization of PAH sources in Northern Italy aerosols. TALANTA, 120, 283-288 [10.1016/j.talanta.2013.12.010]. | |
Tipo: | Articolo in rivista - Articolo scientifico | |
Carattere della pubblicazione: | Scientifica | |
Presenza di un coautore afferente ad Istituzioni straniere: | No | |
Titolo: | Data handling of GC/MS signals for characterization of PAH sources in Northern Italy aerosols | |
Autori: | Pietrogrande MC; Perrone MG; Sangiorgi G; Ferrero L; Bolzacchini E | |
Autori: | PERRONE, MARIA GRAZIA (Secondo) FERRERO, LUCA (Penultimo) BOLZACCHINI, EZIO GIOVANNI (Ultimo) | |
Data di pubblicazione: | 2014 | |
Lingua: | English | |
Rivista: | TALANTA | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.talanta.2013.12.010 | |
Appare nelle tipologie: | 01 - Articolo su rivista |
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