Radium poisoning pictures3/18/2023 ![]() Radon tends to enter buildings at their lowest point. Man-made structures can also be responsible for radon poisoning. Natural rock is not the only source of radon. More common rocks, such as limestone, also emanate radon, also this is a less common occurrence and levels are lower than other sources. igneous and metamorphic rocks, such as granite.Share on Pinterest Radon can enter a building through cracks in the walls and foundations.Ī range of natural sources give off radon, including: About 2,900 of those deaths occur in people who have never smoked. Radon causes 21,000 lung cancer deaths per year in the U.S. According to the EPA, radon is the second most common cause of lung cancer, after smoking. Healthcare professionals now acknowledge that inhaling large quantities of radon causes lung cancer. Despite the eventual realization of the hazards, radon-induced lung cancer in miners remained a significant hazard until the 1970s. Doctors attributed lung cancer in miners in the Czech Republic, South Australia, and Southwestern U.S. In the 1940s and 1950s, companies who set up mines did not widely implement ventilation systems. Researchers only discovered its negative health implications at a later date. Other companies attempted to add radon to water, but the short half-life of radon meant that it had disappeared by the time the water reached people. ![]() People could pay small sums of money to spend time in a “radiotorium” and receive bombardments of radon. In the early 20th century, quack doctors touted radon as being beneficial to health.
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