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Radon is responsible for the majority of public exposure to ionizing radiation. It is often the single largest contributor to an individual's background radiation dose, and is the most variable from location to location. Radon gas from natural sources can accumulate in buildings, especially in confined areas such as attics and basements.
In a working mine, the radon level can be controlled by ventilation, sealing off old workings and controlling the water in the mine. The level in a mine can go up when a mine is abandoned; it can reach a level which can cause the skin to become red (a mild radiation burn). The radon levels in some of the mines can reach 400 to 700 kBq m −3. [17]
A radon storm is a day-long episode of increased atmospheric radon concentration due to moving air masses. [1] In Antarctica and over the Southern Ocean, they often occur due to the arrival of continental air from South America [2] and Africa [3] and the concept was coined to describe sudden radon concentration increases there. [4]
The International Radon Project (IRP) is a World Health Organization initiative to reduce the lung cancer risk around the world. The IRP released their guidance to member countries in September 2009. [ 1 ]
They’re told that motherhood is the “most important job in the world” and face accusations of living “meaningless” lives. Percent of American women, ages 18 to 44, without children 40 50% 45 2014 2010 2006 2002 1998 1994 1990
A stalker who "scared the life" out of a woman in his "relentless" pursuit of her has been jailed. Tyson Junior Miller, 37, of Hill Rise, Chippenham, turned up at the house of his victim and sent ...
Chopra says Rodgers was immediately “really trusting” with him and Hughes, adding that throughout their year working together on the documentary, Rodgers “was very open and vulnerable.”
Radium and radon are in the environment because they are decay products of uranium and thorium. The radon (222 Rn) released into the air decays to 210 Pb and other radioisotopes, and the levels of 210 Pb can be measured. The rate of deposition of this radioisotope is dependent on the weather.