The extra dosage for living near a coal power plant is really low - about 2% of a chest x-ray per year. The extra dosage for living near a nuclear power plant is nearly non-existent at a third of that.
The chemical effects of the pollutants in fly ash are a far bigger concern than the radiological effects.
The chemical effects of the pollutants in fly ash are a far bigger concern than the radiological effects.
Edit: Neat chart (http://xkcd.com/radiation/)