3 ms·
marble counters emit radiation (radon) due to the break down of iridium that occurs naturally. your actually supposed to test your marble counters for excessiv
by autokad 9y ago
marble counters emit radiation (radon) due to the break down of iridium that occurs naturally. your actually supposed to test your marble counters for excessive radon release. It comes to no surprise that concrete would have an elevated count - anything with any kind of stone probably would.
- njarboe 9y agoIridium in nature has two stable isotopes and is not radioactive. The longest half-life of the radioactive isotopes of Iridium is 241 years and quickly disappears over geologic timescales. Potassium is what will make stone counters radioactive as Potassium 40 has a half-life of 1.25 billion years and will release beta particles but not radon. Radon is a radioactive gas created in the decay chains of Uranium and Thorium. Stone used for counter tops will have some Uranium and Thorium, but usually at very low levels.
- wycx 9y agoThe iridium content of marble is going to be in ppt or more likely ppq abundances. I see no decay chain leading to Radon. https://en.wikipedia.org/wiki/Isotopes_of_iridium https://en.wikipedia.org/wiki/Isotopes_of_iridium