Residential characteristics and radiofrequency electromagnetic field exposures from bedroom measurements in Germany |
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Authors: | J Breckenkamp M Blettner J Schüz C Bornkessel S Schmiedel B Schlehofer G Berg-Beckhoff |
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Institution: | (1) Department of Epidemiology and International Public Health, Faculty of Health Sciences, Bielefeld University, POB 10 01 31, 33501 Bielefeld, Germany;(2) Institute of Medical Biostatistics, Epidemiology, and Informatics, Johannes Gutenberg-University of Mainz, Mainz, Germany;(3) International Agency for Research on Cancer (IARC), Section of Environment and Radiation, Lyon, France;(4) Test Centre, IMST GmbH, Kamp-Lintfort, Germany;(5) Unit of Environmental Epidemiology, German Cancer Research Center, Heidelberg, Germany;(6) Unit for Health Promotion Research, University of Southern Denmark, Esbjerg, Denmark |
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Abstract: | The objectives of this study were to assess total exposure to radiofrequency electromagnetic fields (RF-EMF) in bedrooms and
the contribution of different radioservices (FM radio, analogue TV and DVB-T, TETRA, GSM900 downlink, GSM1800 downlink, UMTS downlink, DECT, and wireless LAN and blue tooth) to the total exposure. Additional aims were to describe the proportion of measuring values above the detection limit of
the dosimeters and to characterize the differences in exposure patterns associated with self-reported residential characteristics.
Exposure to RF sources in bedrooms was measured using Antennessa? EME Spy 120 dosimeters in 1,348 households in Germany; 280 measures were available for each frequency band per household.
Mean electrical field strengths and power flux densities were calculated. Power flux densities allow the calculation of proportions
of different radioservices on total exposure. Exposure was often below the detection limit (electrical field strength: 0.05 V/m)
of the dosimeter. Total exposure varied, depending on residential characteristics (urban vs. rural areas and floor of a building
the measurement took place). Major sources of exposure were cordless phones (DECT standard) and wireless LAN/blue tooth contributing
about 82% of total exposure (20.5 μW/m2). Exposure to RF-EMF is ubiquitous, but exposure levels are—if at all measurable—very low and far below the ICNIRP’s exposure
reference levels. |
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