@Taniwha …really?
1). The inverse square law describes a perfectly isotropic radiator and most Wi-Fi antennas have directionality and gain that you need to factor in. Cell-towers, for example, are highly directional and have a high gain so you’ll be getting far more exposure in the main beam patch than the inverse square law will predict.
2). The total natural RF spectrum background levels (incl. the sun) is about 0.000001 µW/m2. Now compare that to the power density from a Wi-Fi transmitter.
