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After 11 half-lives (42 days), radon radioactivity is at 1/2 000 of its original level. At this stage, the predominant residual activity is due to the radon decay product 210 Pb, whose half-life (22.3 years) is 2 000 times that of radon, and its descendants 210 Bi and 210 Po, totalling 0.03% of the initial seed activity. [citation needed]
Radon is a major cause of cancer; it is estimated to contribute to ~2% of all cancer related deaths in Europe. [1] Radium, like radon, is radioactive and is found in small quantities in nature and is hazardous to life if radiation exceeds 20-50 mSv/year. Radium is a decay product of uranium and thorium. [2]
Although radon is a noble gas and does not adhere to lung tissue (meaning it is often exhaled before decaying), the radon daughters attached to dust are more likely to stick to the lungs. This increases the risk of harm, as the radon daughters can cause damage to lung tissue. [ 5 ]
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 .
The other debunked account originated from Otmazgin's colleague, Yossi Landau, also a longtime volunteer working in Be’eri. In the days and weeks that followed the attack, Landau told global media what he thought he saw: a pregnant woman lying on the floor, her fetus still attached to the umbilical cord wrenched from her body.
Working in a kibbutz that was ravaged by Hamas’ Oct. 7 attack, Otmazgin — a volunteer commander with ZAKA, an Israeli search and rescue organization — saw the body of a teenager, shot dead ...
According to the survivors, an air raid alert sounded several minutes before the strike. [20] Russia's defence ministry later officially admitted responsibility for the attack, saying that it hit a weapons depot in a nearby factory and that the detonation of munitions caused the fire to spread to the "non-functioning" shopping centre. [21]
The basic gist of the story is this: A shadowy ex-FBI informant with ties to Russia has been arrested and charged with giving false information to the FBI, but not before the alleged lies were ...