The study rests on a new space-time analysis of the exposure based on the deployment of E field monitoring autonomous wideband probes in many French cities. Mixing probe's data with frequency selective in situ measurements carried out by ANFR and the knowledge of the nearby antennas, enable to conclude statistically on the exposure of the people. Indeed, the data gathered by probes reveals that different periodicity exist (seasonality, day/night, week days/weekend). The data gathered by in situ measurements carried out by ANFR crossed with closest antennas surrounding measurement position reveals that the correlation exists between the antennas knowledge and measurement results.