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Interestingly – and given my increasing and yet still rather limited sample size – it seems radon levels are higher during rain.
(I got a real-time radon sensor a little while back to see what the levels are like in our 70-year-old rental house. Spoiler: they’re not great but they’re within Irish safety limits. Not that there’s any safe level of radon, from what I’ve read.)
@aral Where is this radiation emitted from? The materials of the house itself?
@samebchase The ground – from uranium in rocks and soils, to be precise:
“Radon is a radioactive gas that causes lung cancer. It is formed in the ground by the radioactive decay of uranium which is present in all rocks and soils. You cannot see it, smell it or taste it. It can only be measured with special detectors. Radon can cause lung cancer when exposed to high levels over a long period of time. Every year in Ireland, radon causes about 350 cases of lung cancer.”
@aral Thanks for the information. I did not know there were that many radon-related cases of lung cancer!