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A comment on Researchers produce nearly-pure rare earth concentrates from coal. Parent comment

Re:Researchers produce nearly-pure rare earth concentrates f... by Erlangolem on Monday March 12, 2018 @11:43AM (#16568882)
Wouldn’t that make the resulting concrete unusually radioactive?
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Re:Researchers produce nearly-pure rare earth concentrates f... by John_KZ on Monday March 12, 2018 @01:26PM (#16569708)
No, the idea that fly-ash is highly radioactive is a faux created by the nuclear lobby. Some coal is more radioactive than other, but in general they're very safe from this perspective. The real problems are is it's corrosiveness, it's heavy metal content (if any), and the particle size.
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Re:Researchers produce nearly-pure rare earth concentrates f... by Erlangolem on Monday March 12, 2018 @02:52PM (#16570410)
I live and learn, thanks. The particle size I assume is an issue for pulmonary reasons? So sequestered in concrete that wouldn’t be an issue, smart.
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