Radon is a chemical element; it has symbol Rn and atomic number 86. It is a radioactive noble gas and is colorless and odorless. Of the three naturally occurring radon isotopes, only 222 Rn has a sufficiently long half-life (3.825 days) for it to be released from the soil and rock where it …

Radon originates in the natural radioactive decay of uranium from the soil and rocks, such as shale, granite, and phosphate. Radon is present as a gas in the ground, open air, and dissolved water. Uranium is the first element in a long series of decay that produces both radium and radon.

Radon is a radioactive gas that arises from the breakdown of uranium in soils and rocks underfoot. It sneaks into the air, and some of it may end up in our homes, raising important questions about its effects on our health.

Aug 18, 2023 · Radon is a radioactive gas that has no colour, smell or taste. It is produced in the ground from uranium and diffuses into the atmosphere. High concentrations of radon may build up in enclosed spaces such as buildings and long-term exposure can increase the risk of …

damage from acute inhalation exposure to uranium. Chronic (long-term) inhalation exposure to uranium and radon in humans has been linked to respiratory effects, such as chronic lung disease, while radium exposure has resulted in acute leukope

Radon gas, a radioactive product of uranium, can reach high levels in some houses, depending on the local geology and house construction. ound in every State. We know from medical and environmental studies that radon can be a health risk, primarily as a

Radon estimates presume a ten-fold difference between smoker and nonsmoker risks due to synergism, but the exact ratio is not known. In the unlikely event that these actually is no difference between the two groups, the risk for the general population would be just below home accidents for a lifetime at 1.3 pCi/l, somewhat above home accidents ...

Mar 27, 2025 · Radon-222 and its parent, radium-226, are part of the long decay chain for uranium-238. Since uranium is essentially ubiquitous (being or seeming to be everywhere at the same time) in the earth's crust, radium-226 and radon-222 …

Feb 6, 2025 · Radon is a radioactive gas that results from the natural decay of uranium and radium found in nearly all rocks and soils. Elevated radon levels have been found in every state. Radon is in the atmosphere and can also be found in ground water.

Radon is a naturally occurring radioactive gas without color, odor, or taste that undergoes radioactive decay and emits ionizing radiation. Radon comes from the natural (radioactive) breakdown of uranium and thorium in soil, rock, and groundwater and is found all over the U.S.