Author
A. Pietrodangelo
Other affiliations: Sapienza University of Rome
Bio: A. Pietrodangelo is an academic researcher from National Research Council. The author has contributed to research in topics: Particle & Chemical composition. The author has an hindex of 11, co-authored 16 publications receiving 510 citations. Previous affiliations of A. Pietrodangelo include Sapienza University of Rome.
Papers
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TL;DR: An atmospheric stability index for the evaluation of urban primary pollution, based on the elaboration of natural radioactivity data yielded by a stability monitor, has been developed in this paper, which determines the atmospheric concentration of the short-lived decay products of radon, whose emanation rate can be assumed to be constant in the time and space scale of observation.
110 citations
TL;DR: The main difference in PM composition between periods of high concentration and periods of "clean" air was found to be in the increase of ammonium nitrate concentration, found to play an essential role in pollution buildup.
73 citations
Spanish National Research Council1, Instituto Superior Técnico2, University of São Paulo3, University of Birmingham4, University of Milan5, University of Genoa6, Finnish Meteorological Institute7, Paul Scherrer Institute8, King Abdulaziz University9, University College Cork10, Charles University in Prague11, Pontifical Catholic University of Chile12, Norwegian Institute for Air Research13, Aarhus University14, University of Helsinki15, University of Milano-Bicocca16, Centre national de la recherche scientifique17, Istituto Nazionale di Fisica Nucleare18, Clarkson University19
TL;DR: In this article, the authors evaluated the performance and the uncertainty of receptor models (RMs) in intercomparison exercises employing real-world and synthetic input datasets and concluded that RMs are capable of estimating the contribution of the major pollution source categories over a given time window with a level of accuracy that is in line with the needs of air quality management.
68 citations
TL;DR: In this article, the authors used Principal Component Analysis (PCA) and receptor modelling (PCR) to analyze the elemental composition of individual samples collected from six sites in the Lazio region of Italy.
65 citations
TL;DR: Values of ions extraction and elements recoveries resulted fairly equivalent with those obtained by the reference methods, and performance times of the procedure were optimised to meet the target of routine application for large scale monitoring samples.
63 citations
Cited by
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Spanish National Research Council1, University of Birmingham2, Clarkson University3, International Institute for Applied Systems Analysis4, University of Bern5, Paul Scherrer Institute6, Swiss Federal Laboratories for Materials Science and Technology7, Aarhus University8, University of Milan9, University of Aveiro10, Vienna University of Technology11, Ghent University12, University of Vienna13
TL;DR: A review of the most commonly used SA methods in Europe, their comparability and results, and to evaluate current trends and identify possible gaps of the methods and future research directions is presented in this article.
824 citations
TL;DR: In this article, a comprehensive review focusing on the analysis, fate and behavior of oxygenated polycyclic aromatic hydrocarbons (PAHs) in the atmosphere is presented.
271 citations
01 May 2010
TL;DR: In this article, the authors used the high-resolution measurements performed onboard the NCAR/NSF C-130 aircraft during the MILAGRO/MIRAGE-Mex field campaign in March 2006 to investigate the sources and chemical processing of the OA in this region.
Abstract: Abstract. Organic aerosol (OA) represents approximately half of the submicron aerosol in Mexico City and the Central Mexican Plateau. This study uses the high time resolution measurements performed onboard the NCAR/NSF C-130 aircraft during the MILAGRO/MIRAGE-Mex field campaign in March 2006 to investigate the sources and chemical processing of the OA in this region. An examination of the OA/ΔCO ratio evolution as a function of photochemical age shows distinct behavior in the presence or absence of substantial open biomass burning (BB) influence, with the latter being consistent with other studies in polluted areas. In addition, we present results from Positive Matrix Factorization (PMF) analysis of 12-s High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) OA spectra. Four components were resolved. Three of the components contain substantial organic oxygen and are termed semivolatile oxygenated OA (SV-OOA), low-volatility OOA (LV-OOA), and biomass burning OA (BBOA). A reduced "hydrocarbon-like OA" (HOA) component is also resolved. LV-OOA is highly oxygenated (atomic O/C~1) and is aged organic aerosol linked to regional airmasses, with likely contributions from pollution, biomass burning, and other sources. SV-OOA is strongly correlated with ammonium nitrate, Ox, and the Mexico City Basin. We interpret SV-OOA as secondary OA which is nearly all (>90%) anthropogenic in origin. In the absence of biomass burning it represents the largest fraction of OA over the Mexico City basin, consistent with other studies in this region. BBOA is identified as arising from biomass burning sources due to a strong correlation with HCN, and the elevated contribution of the ion C2H4O2+ (m/z 60, a marker for levoglucosan and other primary BB species). WRF-FLEXPART calculated fire impact factors (FIF) show good correlation with BBOA mass concentrations within the basin, but show location offsets in the far field due to model transport errors. This component is small or absent when forest fires are suppressed by precipitation. Since PMF factors represent organic species grouped by chemical similarity, additional postprocessing is needed to more directly apportion OA amounts to sources, which is done here based on correlations to different tracers. The postprocessed AMS results are similar to those from an independent source apportionment based on multiple linear regression with gas-phase tracers. During a flight with very high forest fire intensity near the basin OA arising from open BB represents ~66% of the OA mass in the basin and contributes similarly to OA mass in the outflow. Aging and SOA formation of BB emissions is estimated to add OA mass equivalent to about ~32–42% of the primary BBOA over several hours to a day.
239 citations
TL;DR: In this article, the seasonal variation of PM1 and PM2.5 mass concentration and composition has been investigated in the great urban area of Milan, where PM samplings were carried out 3 times a week during the year 2002.
204 citations
TL;DR: A study of the chemical composition of atmospheric particulate matter has been carried out in the city of Delhi as discussed by the authors, and the results show that during these periods, pollutants produced by combustion sources constituted 6-7 % of the total mass, and that the rest of it, in the absence of desert storms, was evenly divided among species coming from the soil, inorganic secondary compounds formed in the atmosphere and organic species.
172 citations