If you're really worried about your exposure, stay away from the sun, granite, and bananas.
You are sounding like a prof. at Berkeley, That is nonsense of course but of course then they are a bunch of liberals. Fukushima rad. is real and a growing threat. You wish to judge a REM dose by isotopes of potassium?
... that is enough for a coal board.
Well I appreciate you saying I sound like a phony doctor.
Especially since I'm just now heading back to college after the service. The thing is, dilution is the solution to pollution, all of the Fission Products from Fukushima are now watered down to a meaningless level in the vastness of the Pacific. Do we want to have a multi-million curie release every year? No, but are we going to start reeling in Blinky after this? Nope.
I don't really understand what you mean by "judge a REM dose." I had 10 magical years in the the Nuclear Navy, and while I don't know as much as you about burning coal, I do know a thing or two about the other kind of hot rocks. As a Nuke, who spent many hours sitting next to the shield drawing primary samples, I got 502 mrem in the course of ten years. The funny thing is, out to sea, standing watch on a reactor, minute for minute, I was getting less exposure than you there in New York, as I wasn't getting any sunshine.
Granite, and the Radon it exudes is far more dangerous than anything you're going to get from Indian Point. Even there I feel like an alarmist when I typed that, as dealing with Radon is as simple as ventilate, ventilate, ventilate.