Swimming in Spent Nuclear Fuel Pools

26 Feb 2013 • what-if.xkcd.com

Found via Gruber.

Yet outside the outer boundary, you could swim around as long as you wanted—the dose from the core would be less than the normal background dose you get walking around. In fact, as long as you were underwater, you would be shielded from most of that normal background dose. You may actually receive a lower dose of radiation treading water in a spent fuel pool than walking around on the street.

Food for thought the next time I walk past a spent nuclear fuel pool.