Atmospheric modeling of the particles’ journey suggests that millions of North Americans were exposed to arsenic levels 12 to 60 times higher than modern levels between 1898 and 1918.
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Toxic secrets are hiding in Arctic ice ↗Timeline
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Every root
2eos.org ↗Toxic metals can harm human health. Arctic ice cores trace arsenic, lead and other heavy metals to historic mining and smelting in Montana.
sciencenews.org ↗