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Po) in 1 liter of air that releases 1.3 × 10 5 MeV of potential alpha energy; [5] one WL is equivalent to 2.08 × 10 −5 joules per cubic meter of air (J/m 3). [1] The SI unit of cumulative exposure is expressed in joule-hours per cubic meter (J·h/m 3). One WLM is equivalent to 3.6 × 10 −3 J·h/m 3. An exposure to 1 WL for 1 working month ...
Epidemiological evidence shows a clear link between lung cancer and high concentrations of radon, with 21,000 radon-induced U.S. lung cancer deaths per year—second only to cigarette smoking—according to the United States Environmental Protection Agency. [5] Thus in geographic areas where radon is present in heightened concentrations, radon ...
Radon is thus assumed to be the second leading cause of lung cancer after smoking, and accounts for 15,000 to 22,000 cancer deaths per year in the US alone. [9] [better source needed] However, the discussion about the opposite experimental results is still going on. [10] About 100,000 Bq/m 3 of radon was found in Stanley Watras's basement in 1984.
3.48 neon-32: 3.5 darmstadtium-277: 3.5 protactinium-211: 3.8 lead-179: 3.9 roentgenium-278: 4 radium-203: 4 seaborgium-260: 4 uranium-216: 4.3 beryllium-14: 4.35 lead-180: 4.5 radon-196: 4.7 fluorine-27: 5 bismuth-189m1: 5.0 francium-214: 5.0 meitnerium-277: 5 nobelium-262: 5 polonium-189: 5 boron-17: 5.08 protactinium-223: 5.1 americium-223: ...
The roentgen equivalent man (rem) [1] [2] is a CGS unit of equivalent dose, effective dose, and committed dose, which are dose measures used to estimate potential health effects of low levels of ionizing radiation on the human body.
Radon-222 and its decay products; Solar radiation; Thorium-232 and its decay products; ... This page was last edited on 5 December 2024, at 02:32 (UTC).
From January 2008 to December 2012, if you bought shares in companies when H. Lee Scott, Jr. joined the board, and sold them when he left, you would have a 37.7 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
Radon: Francium: Radium: Actinium: ... Lepidolite contains between 0.3% and 3.5% rubidium, ... Other potential or current uses of rubidium include a working fluid in ...
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