1. Ph.D. Candidate, School of Built Environment, Ulster Univ., 25-51 York St., Belfast BT15 1ED, Regno Unito, UK.
2. Assistant Professor, Dept. of Electronics, Information, and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milano, Italy (corresponding author).
3. Associate Professor, Dept. of Electronics, Information, and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milano, Italy; Senior Scientist, Institute of Environmental Engineering, ETH Zurich, Ramistrasse 101, 8092 Zurich Switzerland.