Hope Nog's link is the info that has the facts.
In this crazy world we better have " hope ".
Millions are not worrying about radiation as other concerns are more important.
Like getting a warm meal or shelter or clean water to drink or will we be safe tonight ?
Do not think radiation is a pressing issue for misplaced people living in make shift camps.
( Syria civil war on & on )
Choice between a daily wild salmon or McDonald's junk food think I'd go with the salmon.
I'd say "grace before eating" though ; maybe the Good Lord will cleanse & purify the food " if need be !