This is what it is and was meant by pollution some time ago when all this craze about CO2 has not started yet. Would you think coal was more polluting than gasoline even where modern cleansing plants are used?If your big concern is carbon monoxide, ozone, sulfur dioxide and acid rain, soot and particulate matter, and all the other stuff we traditionally regard as air pollutants, then I think coal-produced electricity is actually more polluting than gasoline. I don't know how much more, though. I haven't seen a comparison by the numbers.
Anyway, FAQ should be short and concise. May it would be good to only point out that coal powerplants are "single" point pollutants where it is much easier to control its exhaust then with houndreds of millions of "small pollution sources" - ICE cars.