The correct take: Coal plants without any environmental requirements 50-60 years ago release more radiation into the area in the form of fly ash (containing natural amounts of radiation like all earth around you) than the radiation escaping from a modern nuclear power plant through it's massive concrete hull.

Or in other worlds: If nothing goes wrong and we completely ignore the actual radioactive waste produced (of which a coal plant obviously produces zero) then the radiation levels in the area around the plant are miniscule and it's really safe. So safe indeed that just the redistribtion of natural radiation via ash when coal is burned has a slightly stronger effect.

That's it. That's the actual gist of the study that is from the 1970s (referencing even older data).

Just the fact that this fairy tale about coal power producing radioactive waste based on some (already then criticised and flawed) old study is still going around shows how lobbyists have damaged your brains.