Analysis of electric field spatial variability in simulations of electromagnetic waves exposure to mobile telephony base stations

Numerical simulation is now widely used for modeling of exposure to electromagnetic fields in urban areas, especially in the case of mobile telephony base stations exposure. This is due to the ever-increasing power of computation tools and to the quantity and the quality of available topographic data. The results of such simulations have more and more weight as they allow consultation between the public, mobile telephony companies, associations and local communities. They also help to define regulatory methods and are a support to public decision. Nevertheless the high spatial variability of electric field both on a local (around a given exposure point) and a global (in a whole urban area) point of view demands a complete scientific body of work on the presentation of results. Characterizing spatial variability is a major challenge in order to find better indicators of electromagnetic waves exposure.