just give you an idea of "radioactivity":
i was a kid when Chernobyl exposure has happened and it was as far from me as San Francisco from Los Angeles. I grow up in the same place and we never took any extra precautions and look at me i turned out just right. sure they say children who was born in 1986 are going to reach 30 y/o only.
sure over years places around Chernobyl has anomalies like mushrooms the size of the car, animals born with 5 legs or 3 heads and the list can go and on.
on the other hand, we know the amount of humans in the world is reaching its peak so the nature probably stepped in to level it. with all what is happening in the world of catastrophes it must be a very productive years.
I think the danger downplayed by government 100%.