What is radon, and why is it a concern for indoor air quality?

Radon is a naturally occurring radioactive gas that is produced from the decay of uranium in soil, rock, and water. It is a colorless, odorless gas that can accumulate in indoor environments, particularly in areas with poor ventilation. The primary concern with radon is its association with an increased risk of lung cancer, especially among individuals who are exposed to elevated levels over long periods.

Breathing in radon can lead to the radiation of lung tissues, which can cause cellular damage and, over time, may result in cancer development. This makes it a significant concern for indoor air quality, as long-term exposure in poorly ventilated spaces can accumulate harmful concentrations of this gas.

Understanding the risks associated with radon emphasizes the importance of testing for its levels in residential and commercial buildings, particularly in areas known to have high natural radon levels. The other options refer to unrelated concepts that do not capture the essence of radon’s nature or its implications for health and indoor air quality.