how were Oppenheimer and Groves able to stand at ground zero right after the first atom bomb exploded without getting radiation poisoning?

Question

Speaking specifically to this picture

https://www.atomicarchive.com/history/trinity/afterwards.html

In: 685

Answer 1

Just on Smoke Back in the day firefighters had a 8x relative risk of dying from lung cancer – smokers at the time 2-3 x (cardiovascular risks were much higher at the time) – my point inhaling smoke, any smoke causes lung cancer