It is colorless, tasteless, and odorless, making it completely undetectable without proper testing. Unfortunately, radon can accumulate in homes and businesses, especially in basements and lower-level areas, where it can reach harmful concentrations. Long-term exposure to elevated radon levels is the second leading cause of lung cancer in the United States, making regular testing essential for the safety of your family or employees. At Advanced Environmental Services Inc, we educate homeowners and property managers.