One example of an indoor air pollutant is radon. Here are some common questions and answers about radon. Uranium is present in most of the soil and rock around the world. It is typically concentrated in areas with lots of granite, shale, phosphate, and pitchblende. These particles release bursts of energy that can damage lung tissue and lead to lung cancer.
Scientists are more certain about radon risks than risks from most other cancer-causing substances.
Smoking combined with radon exposure is an especially dangerous health risk. Some building materials, such as natural stone or rock, can contain and emit radon. Radon can also be carried into a building through natural gas. The only way to know is to have your building tested. You can also monitor radon levels yourself by using an alpha track detector, which takes at least a month up to a year for more accurate readings to determine average radon concentration.