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Publication
Featured researches published by Paolo Ciccioli.
Reactive Hydrocarbons in the Atmosphere | 1999
Paolo Ciccioli; Enzo Brancaleoni; Massimiliano Frattoni
Publisher Summary In urban and suburban areas where vehicular emissions are the dominant sources of hydrocarbons, olefins and arenes are the most reactive organic components. Together, they may account for about 80% of the ozone production. Particularly important are the C4 to C8 branched and cyclic olefins and dienes and aromatics from xylenes to tetramethylbenzenes. The semivolatile fraction from C8 to C20 can be important in producing ozone in areas, such as many European cities, where diesel emissions account for a significant portion (20 to 40%) of the total hydrocarbon emissions. This chapter discusses the reactivity of hydrocarbons in the atmosphere on the basis of aerometric observations made at different tropospheric sites. The rapid and selective removal from the atmosphere of components capable of reacting rapidly with OH radicals, NO3 radicals, and ozone suggests that photochemical pollution is the main tropospheric sink for hydrocarbons. Examples showing the selective removal of hydrocarbons during photochemical smog episodes are provided in the chapter. Using Rome as a case study, diurnal changes in reactivity and the effects of dilution and transport in an urban plume are also discussed in the chapter. Differences between fluxes and emission rates measured in a forest site are used to assess the reactivity of biogenic hydrocarbons.
Archive | 2015
Rita Baraldi; Francesca Rapparini; Osvaldo Facini; Claudia Kemper Pacheco; Giorgio Matteucci; Enzo Brancaleoni; Paolo Ciccioli
A GIS-based model was developed so to predict Biogenic Volatile Organic Compounds (BVOCs) emissions from the Italian forest ecosystems in order to estimate the fraction of the Net Primary Production lost as reduced carbon and to assess the impact of BVOCs in the formation of ozone and secondary organic aerosols. The performance of the model was verified by comparing the predictions with BVOC fluxes measured in a CarboItaly site using the gradient method with tethered balloon profiles, but also with BVOC fluxes measured in previous years. The agreement between observations and predictions indicated a rather accurate estimation of the model and confirmed the importance in the Italian peninsula of monoterpene emissions, expecially of the fast reacting sabinene in areas dominated by Fagus sylvatica L. and Castanea sativa L.
Carcinogenesis | 1990
Maria Antonietta Belisario; R. Pecce; Rossella Della Morte; Amalia Rosa Arena; Angelo Cecinato; Paolo Ciccioli; Norma Staiano
Archive | 2009
A. Bracho Nunez; N. Knothe; M. A. R. Liberato; G. Schebeske; Paolo Ciccioli; Maria Teresa Fernandez Piedade; J. Kesselmeier
Archive | 2009
Silvano Fares; Simone Mereu; G. Scarascia Mugnozza; Marcello Vitale; Facundo F. Manes; Massimiliano Frattoni; Paolo Ciccioli; Francesco Loreto
Archive | 2003
T. Dindorf; U. Kuhn; W. Dindorf; Caspar M. Ammann; German Guerrero Chaparro; N. Knothe; F. Steindel; Constance L. Tritsch; Monika Scheibe; Enzo Brancaleoni; Massimiliano Frattoni; Paolo Ciccioli; J. Kesselmeier
Archive | 2008
A. Bracho Nunez; N. Knothe; G. Schebeske; Paolo Ciccioli; Maria Teresa Fernandez Piedade; J. Kesselmeier
Archive | 2003
T. Dindorf; U. Kuhn; Caspar M. Ammann; Albrecht Neftel; Constance L. Tritsch; Paolo Ciccioli; R. Koppmann; J. Kesselmeier
Archive | 2003
S. Rottenberger; B. A. Kleiss; U. Kuhn; Paolo Ciccioli; J. Kesselmeier
Archive | 2003
U. Kuhn; T. Dindorf; Axel Thielmann; Franz X. Meixner; Meinrat O. Andreae; Laurens Ganzeveld; Olaf Kolle; James W. Lloyd; Patricia Stefani; Paolo Ciccioli; Luciana V. Gatti; Antonio Donato Nobre; Adérito Araújo; Alex Guenther; J. Kesselmeier