The Italian peninsula is characterized by different geographical and topographical districts, from coastal to countryside or mountainous areas. The Po Valley has very different meteoclimatic conditions from the rest of the peninsula e represents a critical area for air quality. In particular, the Po Valley is characterized by high concentrations of ammonium nitrate that, during cold periods, reaches above 50% of PM10 mass [1]. The Working Group on Aerosol generation sources and processes of Aerosol (WG1) of the Italian Aerosol Society (IAS, https://www.iasaerosol.it/) has collected PM10 mass and chemical composition data throughout Italy and over the years, thanks to the voluntary contribution of many research groups and regional environmental protection agencies. This dataset is aggregated with seasonal temporal resolution (seasonal mean) from 2005-2016 and have a heterogeneous origin related to urban sites of large and medium-sized cities in the Po Valley, inland or coastal areas. The collected dataset allowed to assess differences in chemical composition between the Po Valley and the rest of our peninsula, with reference, in particular, to secondary inorganic compounds. This dataset was also analysed using Positive Matrix Factorization (PMF). The results obtained, which can provide significant new knowledge in the field of source apportionment [2], are presented in a companion contribution. In the frame of WG1, the collection of more recent PM10 and PM2.5 chemical composition data is still ongoing among the participants; so data from 2005-2016 were also analysed together with the new recent PM10 and PM2.5 data, including that of Prepair Project (2018 onward [1]) in order to deepen the study of secondary inorganic compounds in the Po Valley compared to the rest of Italy, with a focus on the variation over time. [1] https://www.lifeprepair.eu/ [2] Pietrodangelo, Bove, Forello, Crova et al., (2024), Science of the total environment, 908, 167891.
The nation-wide dataset of urban PM10 chemical speciation for Italy: a focus on secondary inorganic compounds
M. MASIOL;
2024-01-01
Abstract
The Italian peninsula is characterized by different geographical and topographical districts, from coastal to countryside or mountainous areas. The Po Valley has very different meteoclimatic conditions from the rest of the peninsula e represents a critical area for air quality. In particular, the Po Valley is characterized by high concentrations of ammonium nitrate that, during cold periods, reaches above 50% of PM10 mass [1]. The Working Group on Aerosol generation sources and processes of Aerosol (WG1) of the Italian Aerosol Society (IAS, https://www.iasaerosol.it/) has collected PM10 mass and chemical composition data throughout Italy and over the years, thanks to the voluntary contribution of many research groups and regional environmental protection agencies. This dataset is aggregated with seasonal temporal resolution (seasonal mean) from 2005-2016 and have a heterogeneous origin related to urban sites of large and medium-sized cities in the Po Valley, inland or coastal areas. The collected dataset allowed to assess differences in chemical composition between the Po Valley and the rest of our peninsula, with reference, in particular, to secondary inorganic compounds. This dataset was also analysed using Positive Matrix Factorization (PMF). The results obtained, which can provide significant new knowledge in the field of source apportionment [2], are presented in a companion contribution. In the frame of WG1, the collection of more recent PM10 and PM2.5 chemical composition data is still ongoing among the participants; so data from 2005-2016 were also analysed together with the new recent PM10 and PM2.5 data, including that of Prepair Project (2018 onward [1]) in order to deepen the study of secondary inorganic compounds in the Po Valley compared to the rest of Italy, with a focus on the variation over time. [1] https://www.lifeprepair.eu/ [2] Pietrodangelo, Bove, Forello, Crova et al., (2024), Science of the total environment, 908, 167891.
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