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submitted 1 year ago by sv1sjp@lemmy.world to c/world@lemmy.world
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[-] Hyperreality@kbin.social 2 points 1 year ago* (last edited 1 year ago)

... approximately 2,000 coal samples from the Western United States ... concentrations of uranium fall in the range from slightly below 1 to 4 parts per million (ppm). ... Coals with more than 20 ppm uranium are rare in the United States. Thorium concentrations in coal fall within a similar 1–4 ppm range, ... Coals with more than 20 ppm thorium are extremely rare.

https://pubs.usgs.gov/fs/1997/fs163-97/FS-163-97.html

concentrations of coals in China are estimated based on uranium analyses of 1535 coal samples ... Late Jurassic and Early Cretaceous (J3–K1), and Eogene and Neogene (E–N) coals are 2.91, 5.43, 3.67, 1.18, 1.84, and 3.92 μg/g, respectively. The overall average weighted uranium concentration of coals in China is 2.31 μg/g.

https://www.sciencedirect.com/science/article/abs/pii/S0360544206001113

AFAIK that's 1.18-5.43 ppm.

Obviously, when you burn that, it gets concentrated.

this post was submitted on 30 Aug 2023
2137 points (94.1% liked)

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