Seasonal and diurnal behaviour of size segregated particles fluxes in a suburban area

Abstract There are very few studies with direct emission/deposition measurements in suburban areas. In this perspective, multi-seasonal flux datasets of size segregated particles fluxes covering a suburban landscape are very important. The main goal of this work is to study the seasonal and diurnal behaviour of particle number concentration and fluxes in three different size ranges in a suburban area in a typical Mediterranean region (south of Italy). The observational campaign was carried out from April 2016 to August 2018. The observational site has been characterized from a meteorological and micrometeorological point of view, studying seasonal and diurnal behaviour of wind velocity and direction, friction velocity, turbulent kinetic energy, sensible heat flux. Annual variation of the total number concentration, as well as in the accumulation mode (0.25