6533b7d8fe1ef96bd12699f2
RESEARCH PRODUCT
Atmospheric dry deposition processes of particles on urban and suburban surfaces: Modelling and validation works
Pietro BuffaAntonio CervoneAntonio DonateoC. LombardoMariarosa GiardinaDaniele ContiniF. Rocchisubject
Urban surfaceCanopyAtmospheric ScienceBrownian diffusion resistance; Coarse particles; Dry deposition process; Nuclear power plant accidents; Submicron particles; Urban canopy010504 meteorology & atmospheric sciencesNuclear power plant accidentCoarse particlesNuclear power plant accidents010501 environmental sciencesAtmospheric sciences01 natural sciencesUrban canopyAtmosphereSurface roughnessBrownian diffusion resistanceSubmicron particlesDry deposition proceSettore ING-IND/19 - Impianti Nucleari0105 earth and related environmental sciencesGeneral Environmental ScienceDry deposition processParticle propertiesCoarse particleSubmicron particleUrban canopyDry deposition processUrban canopyBrownian diffusion resistanceNuclear power plant accidentsCoarse particlesSubmicron particlesParticleEnvironmental scienceDeposition processdescription
Abstract Dry deposition process is one of the important pathways for the removal of particles from atmosphere. It is the result of a combination of different environmental and physical factors as atmospheric conditions, particle properties, characteristics of the canopy. For this latter factor, urban canopy represents unevenly combinations of different types of surface elements that increases the complexity of deposition process phenomena. Therefore, particle dry deposition on urban surfaces is not easy to configure and, although empirical or semi-empirical models in literature have been developed to address this aspect, there is not standardized and commonly accepted criteria, especially for submicron particles. In this paper, comparisons of different dry deposition models and measurement data by experimental campaigns, covering for different surface roughness conditions, i.e. from four Italian cities and urban environments of other countries, are performed. Giardina et al. (2017b) model, by using a Brownian diffusion resistance as proposed in this paper, seems to capture the main dry deposition processes for the examined contexts.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-10-01 |