What’s a few hundred becquerels per cubic metre among friends? (opens in new tab)

We’ve had a few things to deal with since my last: nothing we couldn’t manage, but they have required some managing, and it’s been adding up. The big one, the one that risks being an exception to the above, is discovering that our house requires radon mitigation. We picked up one of the hundred radon kits our town distributed last fall and tested over the winter; the results came in last month. Too high. Installing the mitigation is going to be a pain—not financially, but technically—because ...