title: Integration of an atmospheric dispersion model with a dynamic multimedia fate model: development and illustration.
abstract: Growing attention is devoted to understand the influence of the short-term variations in air concentrations on the environmental fate of semivolatile organic compounds (SVOCs) such as polycyclic aromatic hydrocarbons (PAHs). These variations are ascribable to factors such as temperature-mediated air-surface exchange and variability of planetary boundary layer (PBL) height and structure. But when investigating the fate of SVOCs at a local scale, further variability can derive from specific point source contributions. In this context, a new modeling approach (AirPlus) which integrates a previously developed model (AirFug) with an air dispersion model (AERMOD) is presented. The integrated model is illustrated for two PAHs in a Northern Italy scenario. Results show how chemical contributions deriving from background advective inflows, local emissions and a point source interact in an hourly-varying meteorological scenario to determine air concentration rapid changes and the consequent response of the soil compartment.
authors.affiliation: Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, CO, Italy.
authors.forename: Melissa
authors.initials: M
authors.lastname: Morselli
authors.forename: Davide
authors.initials: D
authors.lastname: Ghirardello
authors.forename: Matteo
authors.initials: M
authors.lastname: Semplice
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Raspa
authors.forename: Antonio
authors.initials: A
authors.lastname: Di Guardo
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data; D001272:Atmosphere / Q000737:chemistry*; D004784:Environmental Monitoring; D008956:Models, Chemical; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D055549:Volatile Organic Compounds