http://www.agreenroadjournal.com/2014/03/background-radiation-has-increased-600.html
Have no doubt, that is a scarestory. Deliberately written to emphasize and make the problem look worse than it is.
A much more appropriate title would be: "Man-made background radiation has increased 600%"
The article entirely ignore the 'natural' background radiation from cosmic rays, solar flares, naturally occurring radiation from surface deposits of uranium, from radon in the air, .. etc. etc. ref:
Background radiationThose natural sources of background radiation can be increased by human activity (remember the ozone hole?), but on the whole they have not increased much since 1950. We evolved in that natural background radiation (some even say 'because of it'), so it is not all bad.
If the man-made bacround radiation is much greater than the 'natural' background radiation then we should be worried about it, if it is much smaller then it does not matter much.
So the big question is: "How large a proportion of our current background radiation is man-made and caused by our own activities"? If we knew that we would have a much better basis for being scared, or not, whichever is more appropriate.
Love JakobA.
