radon daughters

См. также в других словарях:

• radon daughter — radon daughter, a daughter element of radon that clings to airborne dust particles, forming a health hazard when the particles are inhaled: »The kind of damage a radon daughter inflicts depends on its half life…Short lived radon daughters break… …   Useful english dictionary

• Radon — This article is about the chemical element. For other uses, see Radon (disambiguation). astatine ← radon → francium Xe ↑ Rn ↓ Uuo …   Wikipedia

• Radon — Pour les articles homonymes, voir Radon (homonymie) et Rn. Radon Asta …   Wikipédia en Français

• radon — /ray don/, n. Chem. a chemically inert, radioactive gaseous element produced by the decay of radium: emissions produced by outgassing of rock, brick, etc. are a health hazard. Symbol: Rn; at. no.: 86; at. wt.: 222. [1915 20; RAD(IUM) + ON2] * * * …   Universalium

• Radium and radon in the environment — This is a subpage of Environmental radioactivity. Radium Radium in quack medicine See the story of Eben Byers for details of one very nasty case which involved a product called Radithor which contained 1 mCi (40 MBq) of 226Ra and 1 mCi of 228Ra… …   Wikipedia

• Uranium mining — The Ranger Uranium Mine in Australia …   Wikipedia

• Lucas cell — A Lucas cell is a type of scintillation particle detector. It is used to grab a gas sample, filter out the radioactive particulates through a special filter and then count the radioactive decay. It is frequently used to measure radon gas… …   Wikipedia

• respiratory disease — ▪ human disease Introduction  any of the diseases and disorders that affect human respiration (respiration, human).  Diseases of the respiratory system may affect any of the structures and organs that have to do with breathing, including the… …   Universalium

• ra|don — «RAY don», noun. 1. a heavy, inert, radioactive gas formed by the radioactive decay of radium. Radon has at least 17 known isotopes. Traces of it are found in the air in various amounts. »Radon, an alpha emitting daughter of radium, is easily… …   Useful english dictionary

• Uranium mining in the United States — declined drastically in the 1980s, but has revived since 2001 due to higher uranium prices. The average spot price of uranium oxide (U3O8) increased from $7.92 per pound in 2001 to $39.48 per pound in 2006. [Department of Energy s [http://www.eia …   Wikipedia

• Iain Sinclair — For other people named Ian or Iain Sinclair, see Ian Sinclair (disambiguation). Born June 11, 1943 (1943 06 11) (age 68) Cardiff, Wales Nationality British Period 1970 Notable work(s) Downriver …   Wikipedia