Nature World News: Researchers from Duke University recently found high concentrations of radioactive contaminants in coal ash from three major U.S. coal-producing basins. Compared to normal soil, the researchers found that this ash was five times more radioactive, and up to 10 times more radioactive than its parent coal. This raises concerns of how coal ash may affect environmental and human health.
According to a news release, the researchers collected samples of coal and coal ash from the nation's three major...