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Radon is a radioactive gas. It comes from the natural decay of uranium that is found in nearly all soils. It typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation. Your home traps radon inside, where it can build up. Any home may have a radon problem. This means new and old homes, well-sealed and drafty homes, and homes with or without basements.  When you breathe air containing radon, you increase your risk of getting lung cancer.  The Surgeon General of the United States has warned that radon is the second leading cause of lung cancer in the United States.  Get your home scheduled for a test today!

EPA Radon Zone Map


annual lung cancer deaths


leading cause of lung cancer

1 in 15

homes with elevated levels


risk of lung cancer @ 8pci/L


Albuquerque Map

The following average radon readings (pci/L) were conducted by MRT Home Inspections over many years and represent averages based on zip code areas.  Included with the averages are the range of readings and number of tests conducted for each area.  Areas with more tests likely have a more reliable average.  Also noted, is an observation that radon levels tend to read about 1.0 pCi/L lower in the summer months on average. The data should be used as an informational guide and not as an indication of what an individual test will produce. 

87109 - Lower Academy = 4.3

(9.1 to 1.6) - 25 tests

87107 - North Valley = 3.8

(13.8 to 1.1) - 9 tests

87122 - N Albuquerque Acres = 3.3

(9.1 to 0.6) - 24 tests

87110 - ABQ Uptown = 3.1

(10.8 to 0.8) - 17 tests

87043 - Placitas = 2.8

(3.7 to 1.4) - 5 tests

87104 - Old Town = 2.7

(5.0 to 0.8) - 9 tests

87106 - University = 2.5

(8.1 to 0.5) - 16 tests

87111 - Upper Academy = 2.5

(9.8 to 0.5) - 49 tests

87059 - East Mountains = 2.4

(5.6 to 0.5) - 17 tests

87123 - Four Hills = 2.3

(10.1 to 0.5) - 27 tests

87112 - Indian School Heights = 2.1

(4.5 to 0.7) - 23 tests

87114 - Paseo West Side = 1.5

(4.0 to 0.4) - 14 tests

87144 - Rio Rancho = 1.4

(3.1 to 0.4) - 17 tests

87120 - Taylor Ranch = 1.4

(3.1 to 0.5) - 21 tests

Overall Average = 2.6 pCi/L

Summer Season Average = 1.9 pCi/L*

Colder Season Average = 2.9 pCi/L*

*Note:  long term test data suggests that average radon levels are typically about 1.0 pCi/L lower in the summer months.


Step 1: Notification

If a radon test is desired, the first step is to notify the seller of the upcoming test.  This is an important notification, because radon testing requires closed home conditions 12 hours prior to the test and for 48 hours during the test.  Closed home conditions include keeping windows and doors closed (other than momentary use) as well as avoiding the use of exhaust fans, and most importantly, the use of evaporative coolers.  Note:  evaporative coolers often create a difficult situation in the summer, where occupants are expected to survive without cooling or vacate their home for the duration.  Typically notification will be handled between the realtors ahead of the test to ensure that everyone understands the necessary conditions.

Radon Notification

Step 2: Testing

The inspector first assesses whether closed home conditions are present at the start of the test and if there is doubt or evidence of open windows, etc.  the inspector will either reschedule the test or just deploy the monitor for a longer duration to account for the 12 hours of closed home conditions.  The inspector finds an appropriate location, typically a bedroom or living room on the lowest level, and begins the test.  The inspector leaves informational signage to remind the occupants of the closed home requirements and then returns to retrieve the monitor at the end of the test duration.  Again, the inspector evaluates if closed home conditions are still observed at the end of the test.

Radon Monitor

Step 3: Test Evaluation

The inspector evaluates the collected data and presents the findings in report format.  The average radon reading is evaluated with three courses of action.  When the radon reading is 4.0 pCi/L or higher, the inspector highly recommends installing a radon mitigation system to bring the levels to an acceptable level.  This criteria is based on the EPA recommendations and is relevant to real estate transactions.  If the average is between 2.0 pCi/L and 4.0 pCi/L the inspector recommends the client considers installing a mitigation system to lower the levels based on the World Health Organization's basis of 2.7 pCi/L.  When the levels are lower than 2.0 pCi/L the inspector only recommends retesting about every 5 years or when there has been major renovations or additions to the home.

Radon Test Report
Radon Results
Radon Test Report
PDF Flyer
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