In 1530, Paracelsus explained a losing illness of miners, the mala metallorum, and also Georg Agricola recommended air flow in mines to avoid this mountain health issues (Bergsucht). In 1879, this problem was identified as lung cancer cell…

EPA lifetime safety and security requirements for health hazards are established based upon a 1 in 100,000 threat of fatality. Most researchers agree that the danger of death for radon at 4 p Ci/L is around 1 in 100. At the 4 p Ci/L EPA ra…