3 ms·

Of which Radon-222 and Radon-226 still are way more threat than some reactor blowing up somewhere. edit: if you've got granite in the basement, be vefy afraid

by lstodd 8y ago

Of which Radon-222 and Radon-226 still are way more threat than some reactor blowing up somewhere. edit: if you've got granite in the basement, be vefy afraid :)