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학술지 Assessment of Extremely LowFrequency Magnetic Field Exposure FromGSM Mobile Phones
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저자
Carolina Calderon, Darren Addison, Terry Mee, Richard Findlay, Myron Maslanyj, Emmanuelle Conil, Hans Kromhout, 이애경, Malcolm R. Sim, Masao Taki, Nadege Varsier, Joe Wiart, Elisabeth Cardis
발행일
201404
출처
Bioelectromagnetics, v.35 no.3, pp.210-221
ISSN
0197-8462
출판사
John Wiley & Sons
DOI
https://dx.doi.org/10.1002/bem.21827
협약과제
13PR1100, 스마트 사회 전자파 노출량 제어기반 구축, 최형도
초록
Although radio frequency (RF) electromagnetic fields emitted by mobile phones have received much attention, relatively little is known about the extremely low frequency (ELF) magnetic fields emitted by phones. This paper summarises ELF magnetic flux density measurements on global system for mobile communications (GSM) mobile phones, conducted as part of the MOBI-KIDS epidemiological study. The main challenge is to identify a small number of generic phone models that can be used to classify the ELF exposure for the different phones reported in the study. Two-dimensional magnetic flux density measurements were performed on 47 GSM mobile phones at a distance of 25mm. Maximum resultant magnetic flux density values at 217Hz had a geometric mean of 221 (+198/-104)nT. Taking into account harmonic data, measurements suggest that mobile phones could make a substantial contribution to ELF exposure in the general population. The maximum values and easily available variables were poorly correlated. However, three groups could be defined on the basis of field pattern indicating that manufacturers and shapes of mobile phones may be the important parameters linked to the spatial characteristics of the magnetic field, and the categorization of ELF magnetic field exposure for GSM phones in the MOBI-KIDS study may be achievable on the basis of a small number of representative phones. Such categorization would result in a twofold exposure gradient between high and low exposure based on type of phone used, although there was overlap in the grouping. © 2013 Wiley Periodicals, Inc.
키워드
ELF, EMF, Exposure assessment, Magnetic flux density, MOBI-KIDS, Mobile phones
KSP 제안 키워드
ELF magnetic field, Electromagnetic Field, Epidemiological studies, Exposure assessment, Extremely Low Frequency, Field patterns, Geometric mean, Global System for Mobile Communication(GSM), Magnetic field(MF), Magnetic flux density measurements, Spatial characteristics