title: EXTRAPOLATION TECHNIQUES EVALUATING 24 HOURS OF AVERAGE ELECTROMAGNETIC FIELD EMITTED BY RADIO BASE STATION INSTALLATIONS: SPECTRUM ANALYZER MEASUREMENTS OF LTE AND UMTS SIGNALS.
abstract: International and national organizations have formulated guidelines establishing limits for occupational and residential electromagnetic field (EMF) exposure at high-frequency fields. Italian legislation fixed 20 V/m as a limit for public protection from exposure to EMFs in the frequency range 0.1 MHz-3 GHz and 6 V/m as a reference level. Recently, the law was changed and the reference level must now be evaluated as the 24-hour average value, instead of the previous highest 6 minutes in a day. The law refers to a technical guide (CEI 211-7/E published in 2013) for the extrapolation techniques that public authorities have to use when assessing exposure for compliance with limits. In this work, we present measurements carried out with a vectorial spectrum analyzer to identify technical critical aspects in these extrapolation techniques, when applied to UMTS and LTE signals. We focused also on finding a good balance between statistically significant values and logistic managements in control activity, as the signal trend in situ is not known. Measurements were repeated several times over several months and for different mobile companies. The outcome presented in this article allowed us to evaluate the reliability of the extrapolation results obtained and to have a starting point for defining operating procedures.
authors.affiliation: ARPA Lombardia, Via Rosellini 17, 20100 Milano, Italy.
authors.forename: Stefano
authors.initials: S
authors.lastname: Mossetti
authors.affiliation: ARPA Lombardia, Via Rosellini 17, 20100 Milano, Italy.
authors.forename: Daniela
authors.initials: D
authors.lastname: de Bartolo
authors.affiliation: Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy.|Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, 20133 Milano, Italy.
authors.forename: Ivan
authors.initials: I
authors.lastname: Veronese
authors.affiliation: Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, 20133 Milano, Italy.|Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Via Pascal 36, 20133 Milano, Italy.
authors.forename: Marie Claire
authors.initials: MC
authors.lastname: Cantone
authors.affiliation: Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy.
authors.forename: Cristina
authors.initials: C
authors.lastname: Cosenza
authors.affiliation: ARPA Lombardia, Via Rosellini 17, 20100 Milano, Italy.
authors.forename: Elisa
authors.initials: E
authors.lastname: Nava
mesh_terms: D040421:Cell Phone; D004574:Electromagnetic Fields; D004781:Environmental Exposure; D006798:Housing; D000069079:Radiation Exposure; D011846:Radio Waves; D015203:Reproducibility of Results