The Colorado Department of Public Health and Environment strongly recommends that ALL tenants have an indoor radon test performed before leasing residential real property and recommends having the radon levels mitigated if elevated radon concentrations are found. Elevated radon concentrations can be reduced by a radon mitigation professional.
Residential real property may present exposure to dangerous levels of indoor radon gas that may place the occupants at risk of developing radon-induced lung cancer. Radon, a Class A human carcinogen, is the leading cause of lung cancer in nonsmokers and the second leading cause of lung cancer overall. A landlord is required to provide the tenant with any known information on radon test results of the residential real property.
C.R.S. § 38-12-803