The limits were increased after Chernobyl in Germany and were even lower. I'm no expert in radiation but it's a field that has no definitive point what is harm

The limits were increased after Chernobyl in Germany and were even lower. I'm no expert in radiation but it's a field that has no definitive point what is harmful and what isn't harmful. A physics teacher of mine wasn't as easy going as you and said to us to be careful.