1. Characterisation of spatial and temporal variability of RF-EMF exposure levels in urban environments in Flanders, Belgium.
- Author
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Velghe, Maarten, Joseph, Wout, Debouvere, Senne, Aminzadeh, Reza, Martens, Luc, and Thielens, Arno
- Subjects
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RADIO frequency , *ELECTROMAGNETIC fields , *WORKING hours , *STATISTICAL reliability ,URBAN ecology (Sociology) - Abstract
Personal exposure to Radio-Frequency Electromagnetic Fields (RF-EMFs) was studied using personal measurements in five different microenvironments in each of five cities (Brussels, Antwerp, Ghent, Bruges and Hasselt) in Flanders, Belgium. These measurements were carried out by two researchers using on-body calibrated personal exposimeters. In three out of the five studied cities (Brussels, Ghent and Bruges), temporal aspects of personal exposure to RF-EMFs were studied as well. Measurements during and outside of rush hours (7:00–9:15 and 16:30–19:00) were compared. Likewise, measurements were executed during night time and compared to the ones measured during working hours. Representativeness and repeatability of the measurement method was studied as well. The highest mean total exposure was found in Brussels (2.63 mW/m2), the most densely populated city in this study. However, we measured higher downlink exposure in Antwerp than in Brussels, which might be an effect of the stronger legislation on base stations in Brussels. The measurements and used protocol were found to be both repeatable over time (r = 0.95 for median total exposure) and representative for the studied microenvironments in terms of path selection (r = 0.88 for median total exposure). Finally, in 10 out of the 13 on-body calibrated frequency bands we found that the measurement devices underestimate the intensity of the incident RF-EMFs with median underestimations up to 68%. • Comparison of population exposure to RF-EMF in 5 densely populated cities with similar characteristics within Flanders. • The first findings that indicate the effects of regulations on exposure levels. • Repeatability and representativeness of the used method are shown, which is important for future research. • Application of this method outside of office hours renders new insights in daily behaviour of exposure. • On-body calibration of the measurement device allowed us to quantify the on-body measurement uncertainty. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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