[Quoth]

The ethernet over domestic power uses radiowaves, not power. It only passes CE & FCC because they don't use data on it, some testers only plug in one unit. The lighting circuits especially radiate. It's been proved by communication engineers, even powering one unit on an isolated generator or UPS 10m (30ft) away. The faster ones interfere with FM Radio, all interfere with Shortwave reception and some interfere with Airband. They've even disrupted DSL when phone wiring has picked up the signal. Most don't transmit if there is no data.

In Double Blind tests there was no ability at all to sense WiFi. Note that Microwave ovens, 3G and DECT use similar frequencies and signals to WiFi. Also the power level at a phone handset transmitting in your hand is hundreds of times to 1000s of times more than a WiFi point or WiFi in a gadget on your desk.

On phone masts: Ironically there is LEAST power absolutely under it, than further down the road due to the direction aerials to avoid wasting power into the ground and sky.

>|<
Mast and beams

Electro-sensitivity to RF or 60Hz or 50Hz mains wiring simply doesn't exist.
If you stare into a really high power source, such as Radar, you STILL feel nothing, though prolonged exposure may give burns and probably cataracts. Radar is about 10KW pulses and about 800W average. A microwave oven uses the same transmitting device, though usually now Radar uses higher frequencies. That's why a microwave oven is a Faraday cage (metal grill etc on door), two door switches and it cooks things. The enclosure (Faraday cage) ensures less RF than a WiFi point next door leaks out.

Lucille Ball claimed she picked up radio stations on her fillings. It was a joke! It's never ever been duplicated. You will feel a tingle from battery cell electricity if you have amalgam or other metal fillings if you put a different bare metal in your mouth, almost all battery cells use two dissimilar conductive materials, (one usually pure metal) and an electrolyte that's acid or alkali.