Indoor Radon Program

ryan-2012 Ryan Paris, Radon CoordinatorGeneral number: (804) 864-8161

Fax number: (804) 864-8175



Exposure to indoor radon, a colorless, odorless radioactive gas, is thought to be the second leading cause of lung cancer, and the leading cause of lung cancer among people who have never smoked.  Exposure to radon may cause as many as 21,000 cases of lung cancer each year in the United States, including almost 700 cases per year in Virginia.

The Environmental Protection Agency (EPA) classifies radon risk areas as Zones 1, 2 or 3.  Virginia has 46 counties and 15 cities that are classified as Zone 1 (high risk), and 24 counties and 8 cities classified as Zone 2 (moderate risk).  Click here for a VA risk map.  Testing your home, workplace or other normally occupied area is the only way to know for sure if an indoor radon problem exists.  Indoor radon usually reaches its maximum concentration during the coldest winter months.  The lowest livable level of the structure should always be tested because that is where the highest radon levels in the structure are typically found.  Self-test kits may be obtained in some retail stores or may be ordered from several on-line vendors.  VDH offers the opportunity to purchase discounted radon test kits (see below).  If an initial test result meets or exceeds the EPA recommended action level 4.0 pCi/L, confirmatory testing should be performed.  The most common mitigation method used to reduce radon in the home is a piping system attached to a fan which pulls radon from beneath the house and vents it above the roof.  This system does not require major changes to your home.  Sealing cracks and other openings makes this kind of system more effective and cost-efficient. Similar systems can also be installed in houses with crawl spaces.  Radon contractors can use alternative methods that may also work in your home.  The right system depends on the design of your home and other factors.  Radon informational brochures and documents are available at the EPA website: EPA Document Webpage.


Beginning January 1, 2018 VDH is making a limited supply of short-term, do-it-yourself radon test kits available for only a $3 shipping fee.  To order your $3 test kit click on this link.

Once the supply of $3 test kits is exhausted, you may order discounted test kits directly from Air Chek, Inc. for $7.95 by using a credit card at this link:  Radon Test Kit or you may order Air Chek kits by phone or mail for $9.95 each using this coupon: Radon Test Kit Coupon


Office of Radiological Health | 109 Governor Street, 7th Floor | Richmond, VA 23219

Telephone (804) 864-8150 | Fax: (804) 864-8155