Pete K said:
All of it below the entrance
So I had a good "jolly" doing my homework on the BCA reports on Radon, and so I can see that Peak has the most, and given the stats, I can see why the old guard happily ignore it, because it's so much easier.
The thing I find interesting is:
1) Bagshawe, Carlswark, Giants - all the "inspiring" newb caves that PICA (and my club!) might take people in are Radon-tastic. I'm in Bagshawe a lot, and hahahahahahhahahah Radon hahahahha yes it's a lot of Radon
2) I've heard people complain about Radon exposure in Giants, but the fact other caves are worse is really surprising to me. They're Peak District caves I visit more!
3) I can see why Mouldridge appeals so much to PICA etc
Y'all gonna do what you wanna do, so I'm not going to tell anyone what risks to or to not accept, but yeah - it's definitely an interesting one. For me who has done ~5-10 Bagshawe trips this year more than people doing one off trips!
Eager to try and focus on the engineering works in this thread - but I know that's like pouring petrol on a candle and telling it not to burn.
p.s. mods - if you wanna split the thread into sumps and radon, feel free