Urban textures of the Italian cities are peculiarly shaped by the local geography generating similarities among cities placed in different regions but comparable topographical districts. This suggested the following scientific question: can different topographies generate significant differences on the PM10 chemical composition at Italian urban sites that share similar geography despite being in different regions? To investigate whether such com-munalities can be found and are applicable at Country-scale, we propose here a novel methodological approach. A dataset comprising season-averages of PM10 mass concentration and chemical composition data was built, covering the decade 2005-2016 and referring to urban sites only (21 cities). Statistical analyses, estimation of missing data, identification of latent clusters and source apportionment modeling by Positive Matrix Factor-ization (PMF) were performed on this unique dataset. The first original result is the demonstration that a dataset with atypical time resolution can be successfully exploited as an input matrix for PMF obtaining Country-scale representative chemical profiles, whose physical consistency has been assessed by different tests of modeling performance. Secondly, this dataset can be considered a reference repository of season averages of chemical species over the Italian territory and the chemical profiles obtained by PMF for urban Italian agglomerations could contribute to emission repositories. These findings indicate that our approach is powerful, and it could be further employed with datasets typically available in the air pollution monitoring networks.

A PM10 chemically characterized nation-wide dataset for Italy. Geographical influence on urban air pollution and source apportionment / Pietrodangelo, Adriana; Bove, Maria Chiara; Forello, Alice Corina; Crova, Federica; Bigi, Alessandro; Brattich, Erika; Riccio, Angelo; Becagli, Silvia; Bertinetti, Stefano; Calzolai, Giulia; Canepari, Silvia; Cappelletti, David; Catrambone, Maria; Cesari, Daniela; Colombi, Cristina; Contini, Daniele; Cuccia, Eleonora; De Gennaro, Gianluigi; Genga, Alessandra; Ielpo, Pierina; Lucarelli, Franco; Malandrino, Mery; Masiol, Mauro; Massabò, Dario; Perrino, Cinzia; Prati, Paolo; Siciliano, Tiziana; Tositti, Laura; Venturini, Elisa; Vecchi, Roberta. - In: SCIENCE OF THE TOTAL ENVIRONMENT. - ISSN 0048-9697. - ELETTRONICO. - 908:(2024), pp. 167891.0-167891.0. [10.1016/j.scitotenv.2023.167891]

A PM10 chemically characterized nation-wide dataset for Italy. Geographical influence on urban air pollution and source apportionment

Bove, Maria Chiara;Forello, Alice Corina
;
Becagli, Silvia
;
Bertinetti, Stefano;Calzolai, Giulia
;
Contini, Daniele;Lucarelli, Franco
;
Venturini, Elisa;
2024

Abstract

Urban textures of the Italian cities are peculiarly shaped by the local geography generating similarities among cities placed in different regions but comparable topographical districts. This suggested the following scientific question: can different topographies generate significant differences on the PM10 chemical composition at Italian urban sites that share similar geography despite being in different regions? To investigate whether such com-munalities can be found and are applicable at Country-scale, we propose here a novel methodological approach. A dataset comprising season-averages of PM10 mass concentration and chemical composition data was built, covering the decade 2005-2016 and referring to urban sites only (21 cities). Statistical analyses, estimation of missing data, identification of latent clusters and source apportionment modeling by Positive Matrix Factor-ization (PMF) were performed on this unique dataset. The first original result is the demonstration that a dataset with atypical time resolution can be successfully exploited as an input matrix for PMF obtaining Country-scale representative chemical profiles, whose physical consistency has been assessed by different tests of modeling performance. Secondly, this dataset can be considered a reference repository of season averages of chemical species over the Italian territory and the chemical profiles obtained by PMF for urban Italian agglomerations could contribute to emission repositories. These findings indicate that our approach is powerful, and it could be further employed with datasets typically available in the air pollution monitoring networks.
2024
908
0
0
Goal 11: Sustainable cities and communities
Goal 13: Climate action
Pietrodangelo, Adriana; Bove, Maria Chiara; Forello, Alice Corina; Crova, Federica; Bigi, Alessandro; Brattich, Erika; Riccio, Angelo; Becagli, Silvia; Bertinetti, Stefano; Calzolai, Giulia; Canepari, Silvia; Cappelletti, David; Catrambone, Maria; Cesari, Daniela; Colombi, Cristina; Contini, Daniele; Cuccia, Eleonora; De Gennaro, Gianluigi; Genga, Alessandra; Ielpo, Pierina; Lucarelli, Franco; Malandrino, Mery; Masiol, Mauro; Massabò, Dario; Perrino, Cinzia; Prati, Paolo; Siciliano, Tiziana; Tositti, Laura; Venturini, Elisa; Vecchi, Roberta
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1356762
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