this post was submitted on 28 Jul 2023
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The background radiation did go up, but saying "there was hardly any radiation anywhere" is wrong. Today's steel (and background radiation) is pretty much back to pre-nuke levels. Low-background steel Background radiation
It is also worth nothing that we can make low or no radiation-contaminated steel, it's just really expensive and hard and happens in very low quantities.
We could even make isotropically pure iron, jeah.
Wonder how much that would cost per kilogram