Radon är en osynlig och luktfri radioaktiv gas som bildas när det radioaktiva grundämnet radium sönderfaller.

This page contains Frontiers open-access articles about Radon 222.

Det finns radon i mer eller mindre höga halter i alla hus. Radon-222 är den isotop som är vanligast. I sönderfallskedjan från radon-222, finns det två positivt laddade joner, polonium-218 och polonium-214, som även kallas ”radondöttrar”. De binder till rök- och dammpartiklar i luften och tenderar också att fastna i lungorna vid inandning.

You can be exposed to radon by two main sources: radon in the air in your home (frequently called "radon in indoor air") and radon in drinking water. Radon can get into the air your breathe and into the water you drink. Radon is a radioactive gas that occurs naturally in the atmosphere. Radon is a result of the decay of the elements radium, uranium, and thorium. It is colorless, tasteless, and odorless, and completely undetectable to humans.

The chart below lists all of the decay products of radon gas (radon-222) in their order of appearance. They are called the "radon progeny" (formerly "radon daughters"). Each radioactive element on the list gives off either alpha radiation or beta radiation -- and sometimes gamma radiation too -- thereby transforming itself into the next element on the list.

Radon is a gas that has no color, odor, or taste and comes from the natural radioactive breakdown of uranium in the ground. You can be exposed to radon by two main sources: radon in the air in your home (frequently called "radon in indoor air") and radon in drinking water. Radon can get into the air your breathe and into the water you drink. Radon is a radioactive gas that occurs naturally in the atmosphere.

Radon isotopes 222, 220 and 219 are radioactive gases produced by the disintegration of radium isotopes 226, 224 and 223, which are decay products of uranium-238, thorium-232 and uranium-235 respectively, and are all found in the earth’s crust.

It is colorless, tasteless, and odorless, and completely undetectable to humans.

Chapter 8.3 Radon General description Radon is a radioactive noble gas. Of all radon isotopes only two, radon-222 (radon) and radon-220 (thoron) occur in significant amounts indoors. Radon-222 is one of the decay products of uranium-238 (half-life 4.5 × 109 years) and radon-220, a nuclide thorium-232 decay (half-life 1.4 × 1010 years). Radon 222 CASRN 14859-67-7 | DTXSID7024295. Archived IRIS Summary (PDF) (4 pp, 78 K) Notice - This webpage has been Archived. Archive Disclaimer - This site contains Radon on hajuton, mauton ja väritön radioaktiivinen jalokaasu.
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2019 — Direkta mätningar av jordluftens radonhalt ger genomgående mätresultat som underskrider angivna gränsvärden sönderfaller till radon-222. Radon-222 (222 Rn, Rn-222, historically radium emanation or radon) is the most stable isotope of radon, with a half-life of approximately 3.8 days. It is transient in the decay chain of primordial uranium-238 and is the immediate decay product of radium-226. Radon-222 Please visit the Radon element page for information specific to the chemical element of the periodic table.

The behaviour of Rn-222 decay products at the air-glass interface and its implication for retrospective radon exposure estimates. This page in English.
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Radon is a naturally occurring radioactive gas which may be found in high concentrations in indoor environments, such as homes and workplaces. Radon is one of the leading causes of lung cancer. Radon is estimated to cause between 3% to 14% of all lung cancers in a country, depending on the national average radon level and smoking prevalence.

Radon Alert Junior High School 30 Figure 1. Radioactive decay series that proceeds from uranium-238 to lead-206. Radon-222 is the only gas formed during this series, thus allowing it … Request PDF | Radon-222: environmental behavior and impact to (human and non-human) biota | As an inert radioactive gas, 222Rn could be easily transported to the atmosphere via emanation Natural radon consists of three isotopes, one from each of the three natural radioactive-disintegration series (the uranium, thorium, and actinium series).Discovered in 1900 by German chemist Friedrich E. Dorn, radon-222 (3.823-day half-life), the longest-lived isotope, arises in the uranium series.The name radon is sometimes reserved for this isotope to distinguish it from the other two Radon gas is inert, colorless and odorless.

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Radon-222 ingår i den s.k. sönderfallskedjan som startar med uran-238 och slutar med bly-206. Eftersom halveringstiden för radon ligger på 3.8 dagar så sprids

Det är också en ädelgas, så om det bildas i ett preparat så smiter det lätt iväg. Radon detekteras med plastdetektorer som etsas och ger spår man kan räkna. Detektionen är indirekt genom att dotternukliderna fastnar och sönderfaller på detektorn. Radon (chemical symbol Rn) is a naturally occurring radioactive gas found in soils, rock, and water throughout the U.S. It has numerous different isotopes, but radon-220, and -222 are the most common. Radon causes lung cancer, and is a threat to health because it tends to collect in homes, sometimes to very high concentrations. Radon can enter homes through cracks in floors, walls, or foundations, and collect indoors.