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Bioelectromagnetics. 2018 Apr;39(3):200-216. doi: 10.1002/bem.22094. Epub 2017 Nov 16.

Assessment of exposure to radio frequency electromagnetic fields from smart utility meters in GB; part II) numerical assessment of induced SAR within the human body.

Author information

1
School of Electronic Engineering and Computer Science, Queen Mary University of London, London, United Kingdom.
2
Radiation Dosimetry Department, Public Health England, Oxford, United Kingdom.

Abstract

Human body exposure to radiofrequency electromagnetic waves emitted from smart meters was assessed using various exposure configurations. Specific energy absorption rate distributions were determined using three anatomically realistic human models. Each model was assigned with age- and frequency-dependent dielectric properties representing a collection of age groups. Generalized exposure conditions involving standing and sleeping postures were assessed for a home area network operating at 868 and 2,450 MHz. The smart meter antenna was fed with 1 W power input which is an overestimation of what real devices typically emit (15 mW max limit). The highest observed whole body specific energy absorption rate value was 1.87 mW kg-1 , within the child model at a distance of 15 cm from a 2,450 MHz device. The higher values were attributed to differences in dimension and dielectric properties within the model. Specific absorption rate (SAR) values were also estimated based on power density levels derived from electric field strength measurements made at various distances from smart meter devices. All the calculated SAR values were found to be very small in comparison to International Commission on Non-Ionizing Radiation Protection limits for public exposure. Bioelectromagnetics. 39:200-216, 2018.

KEYWORDS:

RF; dosimetry; electromagnetic absorption; exposure; exposure guidelines

PMID:
29143352
DOI:
10.1002/bem.22094
[Indexed for MEDLINE]

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