coal ash

Coal Ash Found to be 10 Times more Radioactive than Coal Itself

Researchers are warning that coal ash could be dangerous to the environment and human health due to the presence of radioactive contaminants.
A Duke University-led study found that the coal ash researchers tested were up to 5 times higher than in normal soil, and as much as 10 times higher than the parent coal itself due to the concentration of radioactivity caused by combustion. [1]