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 Do you know that radioactive radiation is also a natural phenomenon?
For example, now and here small amounts of radon are diffusing from the construction materials into the room. In dependence on the aeration, the concentration rises and drops. The radon stems from the uranium, which played a role in the formation of the solar system, and decomposes in the human lungs to form carconogenic substances. Above all in mountainous regions with uranium ore mines high values may be recorded. The greatest portion of the radiation burden stems, however, from medical diagnostics and therapy. The greatest risk potential are nuclear incidents and nuclear weapons tests. After the shock of Chernobyl, the air is continuously checked for radioactive radiation, among others by the PTB, within the scope of the Federal Radiation Protection Precautionary Act. The measurement results obtained by the PTB are also included in the worldwide control system for the prevention of nuclear weapons tests.
Further Information:
PTB Section "Environmental Radioactivity"
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