u/just_perusing_ig

Radiation in Caves

My local cave (Giants Hole, UK) is speculated to be one of the most radon-heavy caves in the world.

Apparently levels of radon can exceed 155,000 bq m3. Personally I have only been on 4 trips within the cave, however it is extremely popular amongst cavers & i know guides regularly take groups of scouts in, & others who go on regular long deep trips within the system.

I'm very curious to know generally how dangerous this is to human health, in terms of the level of radiation you would be exposed to (relativley high/nothing of concern etc)

Interested to hear your thoughts or more facts about this. (Cross-over from r/caving)

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u/just_perusing_ig — 3 hours ago
▲ 23 r/caving

Radiation in caves

So just found out radon gas can accumulate in caves & had a quick google. Kind've shocked because one of the caves local to me (Giants Hole) is speculated as being one of the most radon-heavy caves in the world. It's also one of the most popular in the area with cavers (not a show cave, but was widened with explosives to attempt to make it into one)

Apparently levels of radon can exceed 155,000 bq m3 which is the equivalent of being exposed to about 0.73 mSv... idk if this would be considered dangerous? (Also, as mentioned, I got this from google so plz correct if wrong).

I've been into the cave 4 times (longest interval for maybe 3 or 4 hours) but didn't go too deep - actually prussik'd up into a chasm, rather than travelling deeper down. Idk if it's less likely to accumulate at higher altitudes?

I know people who have been on long & frequent trips through the cave, and it is frequently used for SRT practice. I'm very curious to know how much of a health risk this would pose, if anyone knows.

It has also put me off doing future "deep" trips into this system. Do you think this reaction is OTT?

Interested to hear your thoughts or more facts about this.

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u/just_perusing_ig — 7 hours ago