PRIMARY AND SECONDARY ORGANIC AEROSOLS
AEROSOLS ORGANIQUES PRIMAIRE ET SECONDAIRE
AEROSOL ORGANICO PRIMARIO E SECONDARIO
Creators: name: Facchini, Maria Cristina; Institute Of Atmospheric Sciences And Climate (ISAC-CNR), Bologna
name: Finessi, Emanuela; Institute Of Atmospheric Sciences And Climate (ISAC-CNR), Bologna
name: Decesari, Stefano; Institute Of Atmospheric Sciences And Climate (ISAC-CNR), Bologna
name: Fuzzi, Sandro; Institute Of Atmospheric Sciences And Climate (ISAC-CNR), Bologna
Publisher: name: EQA - International Journal of Environmental QualityEQA - International Journal of Environmental Quality
Year: 2013
Subjects: primary organic aerosol (POA); secondary organic aerosol (SOA); aerosol mass spectrometer (AMS); Nuclear Magnetic Resonance (NMR) spectroscopy; Positive Matrix Factorization (PMF); biomass burning aerosol
aérosol organique primaire; aérosol organique secondaire; spectrométrie de masse; Résonance Magnétique Nucléaire (RMN) spectroscopie; Positive Matrix Factorization (PMF); biomass burning aerosol
aerosol organico primario; aerosol organico secondario; AMS; spettroscopia di Risonanza Magnetica Nucleare (NMR); PMF; aerosol da combustione di biomasse

description: In this work are presented results from recent intensive field measurements conducted in the Po Valley region in the frame of the EC-funded EUCAARI project, where state-of-the-art instruments were run in parallel in the joint effort to quantitatively apportion the primary and secondary fractions of the organic aerosols (OA) and their origins. We focused on the results obtained by applying factor analysis methodologies (i.e. positive matrix factorization, PMF) to spectroscopic data such as those produced by aerosol mass spectrometry (AMS) and nuclear magnetic resonance spectroscopy (NMR) while aiming at OA source apportionment.
description: Dans cet article on présente les résultats d’une campagne de mesure intensive dans la vallée du Pô, dans le cadre du projet EUCAARI (financé par l’UE), dans laquelle plusieurs instruments de nouvelle génération on été employés en parallèle dans le but de faire la part entre aérosols organiques primaire et secondaire. On focalise sur les résultats en appliquant des méthodes d’analyses statistiques multivariées et factorielles (positive matrix factorization, PMF) aux données de spectroscopie comme celles produites par l’AMS (spectrométrie de masse) et par la résonance magnétique nucléaire (RMN) dans le but d’identifier l’origine des aérosols organiques.
description: In questo lavoro vengono presentati risultati ottenuti in recenti campagne di misura dell’aerosol atmosferico effettuate in Val Padana nell’ambito del progetto europeo EUCAARI. Durante le campagne intensive di misura strumenti di nuova generazione sono stati impiegati in parallelo allo scopo di determinare l’origine della frazione organica dell’aerosol, con particolare attenzione alla componente primaria e secondaria. In particolare vengono descritti i risultati ottenuti applicando metodi di analisi statistica multivariata, ad es. analisi dei fattori (PMF), a dati spettroscopici ottenuti sia tramite spettroscopia di risonanza magnetica nucleare (NMR) che spettrometria di massa (AMS).
description: EQA - International Journal of Environmental Quality; Vol 3 (2010); 15-20