BUILT FOR THE LONG TERM. With a legacy that began in 1860, Guardian has successfully weathered many market cycles. Our clients rely on us to be here when they and their loved ones need us. Our recognition of that requirement has shaped the firm throughout the years, enabling Guardian to prosper and grow.
Radon is a colorless, odorless, radioactive gas. It forms naturally from the decay (breaking down) of radioactive elements, such as uranium, which are found in different amounts in soil and rock throughout the world. Radon gas in the soil and rock can move into the air and into underground water and surface water. Radon is present outdoors and indoors.
What's in a name? Named for the element Radium. Say what? Radon is pronounced as RAY-don. History and Uses: Radon was discovered by Friedrich Ernst Dorn, a German chemist, in 1900 while studying radium's decay chain. Originally named niton after the Latin word for shining, nitens, radon has been known as radon since 1923. Today, radon is still primarily obtained through the decay of radium. At normal room temperatures, radon is a colorless, odorless, radioactive gas. The most common forms of radon decay through alpha decay.