Radon exist in all the world, in air and waters, in rocks and soils, in buildings and tunnels, etc; but radon concentrations are very variable and different.
Yes, because the diffusion of radon gas is more difficult in a material with low porosity and without cracks or holes.
yep
Possible solutions for radon mitigation: good ventilation of the house, ventilation under the basement, plastic filter under the basement, good finishing of the basement and walls, etc.
Radon is a very heavy gas, several times heavier than air. When radon seeps into a basement as a result of low-level radioactive decay within rocks such as granite, it tends to be trapped there. This is especially true as homes are sealed tighter with insulation and weather strips. A full time ventilation system that circulates air from around the outside of basement floor and walls will stop radon buildup.
Low places where there is little or no ventilation. Radon is "heavy" and can accumulate from sources in rocks or soil in locations where there is a "low place" like a crawl space or basement that has little to no air movement in the space.
Inhalation of high concentrations of radon (more than 150 Bq/m3) for long periods can be a cause of lung cancers.
radon 222 it comes form the cracks in the floor
Radon is formed by the decompostion of Radium and/or Uranium which means that a source of either element is decomposing underneath you. The only real way to eliminate it is to remove it form underground. A good method to reduce radon is to open windows (if there are any) to let the gas escape
The Inert or "Noble" gasses. Helium, Neon, Argon, Krypton, Xenon, and Radon are the inert gasses. The "inert" gas Radon is chemically inert, but is radioactive. Radon has a half-life of four days. Because of its radioactivity, radon is hazardous when concentrated. Where the soil contains trace amounts of radium, thorium and uranium, basements may tend to harbor unsafe concentrations of Radon gas; the radioactivity being breathed into the lungs increased the risk of lung cancer. Inexpensive radon detectors can let you know if your basement gathers radon. If so, a ventilation fan to prevent the heavy radon from accumulating might be advisable.
It depends of various factors, like how many people live in the house and the amount of time they spend in it (especially in the basement). The EPA recommends fixing the problem if there are radon levels of 4pCi/L or more. Therefore, it is recommended you seek out a professional to reduce the radon levels in your home.
No, I did some research and it appears there are some things you can do to reduce radon gases in your home and that is good ventilation and fans, there are other things you can do also. Please follow the links below for extensive information from the US Environmental Protection Agency.
In a geographical sense, just about everywhere. It is more common in certain areas than others. It's considerably heavier than air, so radon escaping from the ground into the atmosphere tends to collect in low places, particularly those which are enclosed and have little air circulation. Typically in a house the highest concentration of radon will be found in the basement.