Very Safe these days.
Part of my work I do industrial radiography, this uses a radioactive isotope. Usually Iridium 192 with a source strength of between 5 and 12 curie's.
At my barriers I'm allowed 7.5 µSv (Microsieverts) an hour and any member of the public could work all day there without it being a problem. I'm allowed 20 µSv (Microsieverts in a shift. If I put our meter next to our source when it's in it's protective housing it's not uncommon to see readings of around 220 µSv (Microsieverts) an hour which is stilled deemed safe as that's where we handle it.
Most of the time around Chernobyl we were seeing readings of 0.2 µSv (Microsieverts) and hour, odd area where it was around 2 or 3 µSv (Microsieverts) and had to actively be shown areas where the readings were higher by the guide, 80 µSv (Microsieverts) an hour was the highest I saw which is significantly less than what I get exposed to at work in the UK while working to the strict guidelines. After all safety is paramount