Well, radio pollution is still under debate. In Italy they've supposedly found significant discrepancies in cancer distribution near large radio transmitters (i.e. higher rates of cancer). We're talking humongous power and extreme proximity though, nothing like wifi.
Correlation is not causation. There has been no conclusive link between EM radiation and human ailments other than hysteria. We creatures have throughout history been bombarded with intense radio activity from outer space (such as the emissions from the crab nebula), and we are still alive and plentiful.
It wasn't intended to be a personal attack and I do apologise for that, but I do get bothered when I see baseless accusations that non-ionising radiation is going to kill us all. Of course with enough intensity it could cause problems, but there are sources of high-powered EM radiation that bombard us every day that are from natural sources.
Bright lights can give you sunburns. Ask a welder. Caution and common sense should be applied whenever in the presence of bright lights that shine right through us. (eg X-rays)
That's actually the reason why people who are blocking new transmitters are somehow dumb. Less transmitters means higher peaks for people near one. Still you have to be cautious what studies you believe.
