1USL Toscana Sud-Est, National Health System, Local Agency, Laboratory of Prevention department – Physical Agents, strada di Ruffolo, 53100, Siena, Italy
2Department of Physics, Earth and Environmental Sciences, University of Siena. Via Roma 56, 53100 Siena, Italy
3USL 5 Liguria, National Health System, Local Agency, sede Corso Nazionale 332, 19125, La Spezia, Italy