Prediction of RF-EMF exposure levels in large outdoor areas through car-mounted measurements on the enveloping roads |
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| Institution: | 1. Department of Information Technology, Ghent University/iMinds, iGent, Technologiepark-Zwijnaarde 15, B-9052 Ghent, Belgium;2. Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, Oxon OX11 0RQ, United Kingdom;3. Radiocommunications Agency Netherlands, Piet Mondriaanlaan 54, 3812GV Amersfoort, The Netherlands;4. Centre for Sustainability, Environment and Health, National Institute for Public Health and Environment (RIVM), PO Box 1, 3720BA Bilthoven, The Netherlands;5. Faculty of Technology, Innovation and Society, The Hague University of Applied Sciences, Johanna Westerdijkplein 75, 2521 EN Den Haag, The Netherlands |
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| Abstract: | Knowledge of spatial and temporal trends in the environmental exposure to radiofrequency electromagnetic fields (RF-EMF) is a key prerequisite for RF-EMF risk assessment studies attempting to establish a link between RF-EMF and potential effects on human health as well as on fauna and flora. In this paper, we determined the validity of RF exposure modelling based on inner-area kriging interpolation of measurements on the surrounding streets. The results vary depending on area size and shape and structural factors; a Spearman coefficient of 0.8 and a relative error of less than 3.5 dB are achieved on a data set featuring a closed measurement ring around a decently sized area (1 km2, with an average minimum distance of the encircled area to the ring of less than 100 m), containing mainly low, detached buildings. In larger areas, additional inner-area sampling is advised, lowering the average minimum distance between sampled and interpolated locations to 100 m, to achieve the same level of accuracy. |
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