Do you know that radon is the second leading cause of lung cancer?
Radon is a naturally-occurring colourless, tasteless, odourless, radioactive gas that comes from rocks and dirt and can get trapped in houses and buildings. It is produced by the breakdown of uranium in soil, rock, and water. It can be found in household water. Radon gas can accumulate in houses from seepage through cracks in the foundation. High levels of dissolved radon are found in the groundwater flowing through granite or granitic sand and gravel formations in some areas. Radon can also get into private well especially in areas with high radon in groundwater. Laundering, showering and washing dishes can disturb the water and release radon gas into the air. This is dangerous when inhaled.
Source: Centers for Disease Control and Prevention