1. Laboratory of Air Pollution, Mechanical Engineering Department, University of West Attica, Campus 2, 250 Thivon and P. Ralli Str., 12244 Egaleo, Greece
2. Institute for Environmental Research and Sustainable Development, National Observatory of Central Athens, 15236 Penteli, Greece
3. Laboratory of Climatology and Atmospheric Environment, Department of Geology and Geoenvironment, National and Kapodistrian University of Central Athens, University Campus, 15784 Zografou, Greece