Radon is a naturally occurring radioactive gas found in homes throughout the United States. Nearly

1 in 15 homes in the United States is estimated to have elevated levels of radon. Radon is

measured in picocuries per liter, or pCi/L. The US EPA estimates the average indoor radon level to

be about 1.3 pCi/L, and a level of 0.4 pCi/L is typical in outdoor air. The US Surgeon General has

warned that radon is the second leading cause of lung cancer in the United States today. The EPA

recommends that action be taken to reduce the radon level if the test result is 4.0 pCi/L or higher.

A qualified radon reduction contractor can take steps to reduce the radon level.

The test that has been performed is a short term screening test, which measures the radon level

only during the test period. Radon levels vary from room to room, day to day, and season to

season. If time permits (more than 90 days) long-term tests can be used to confirm short-term test

results. A long term test is more likely to give a reading closer to the year-round average.

The test has been performed in accordance with US EPA testing protocols, including the

requirement to maintain “Closed Building Conditions”. The tester has left notice for occupants of

the house. While certain precautions and quality controls have been taken to ensure these

conditions and the integrity of the test, EnviroMetric Laboratories, Inc. cannot guarantee the absence

of circumstances beyond its control that have affected the outcome of the test.

!National Safety Council 1-800-SOS-RADON (1-800-767-7236)

!Consumer Federation of America, The Radon FIX-IT Program, 1-800-644-6999

!US Environmental Protection Agency www.epa.gov/radon/index.html

Suggested Publications from the EPA: Home Buyer’s and Seller’s Guide to Radon (available from

EnviroMetric Labs),Consumer’s Guide to Radon Reduction, Citizen’s Guide to Radon Reduction.

!National Environmental Health Association (NEHA ) 800-269-4174 www.radongas.org

!National Radon Safety Board (NRSB) 866-329-3474 www.nrsb.org

and suggests verifying credentials with the NEHA, the NRSB, and any relevant local building authorities.

!RADON CONTROL PROFESSIONALS 703-471-9459

!RADON ABATEMENT TECHNOLOGIES 703-242-8000

!RADON ABATEMENT SERVICES (www.radonrepair.com) 301-718-6200

!BENNER GEOTECH 301-696- 0547

!A-1 RADON REMEDIATION - MITIGATION SERVICES 301-831-4298

!KEY TECHNOLOGIES - “Key-Trac Kit” - 800-523-4964

!AIR CHEK, INC.- “Alpha Track Long Term Radon Test” - 800-AIR-CHEK

EnviroMetric Laboratories, Inc. is a leading provider of radon testing services and a wide

range of other environmental testing services. Visit us at www.envirometric.com for more

information about environmental issues in residential real-estate.