COLORADO
The AARST Radon Report Card: Risk and Response
Population and Lung Cancer      Total Population: 5,691,287
Lung Cancer Deaths:
1,407
Age-Adjusted Lung Cancer Incidence Rate
(per 100,000) 38

Lung Cancer Cases
2,371
Estimated Radon-Induced Lung Cancer Cases
  513

Buildings and Exposure Potential
Pre-Mitigation Radon Tests: 168,190
Percent by Radon Level  
 
  < 2 pCi/L

 
  ≥ 2 to < 4 pCi/L

 
  ≥ 4 pCi/L

Housing Units by Structure Type
1 to 4 Units 5 or More Units Total
Existing 1,874,120 510,565 2,384,685
New 25,478 13,155 38,633
Public Schools: 1,927
Statewide Radon Policies
Credential Required Private Certification with State License (7-1-22)
Radon Standards in Effect ANSI-AARST
Homebuyer Protection Required Disclosure Only
Radon System Requirement for New Homes No
    Type of New Home Where Required N/A
    Standard/Code for Radon System in New Homes N/A
School Testing Required Yes
Radon System Requirement for New Schools Yes