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APEX is certified by the NRPP (National Radon Proficiency Program) in Residential Radon Measurement.  Radon is a radioactive gas that is undetected by the human senses.  It is colorless, odorless and tasteless.  Radon comes from the natural decay of uranium, and is found in almost all soils and rocks.​

Radon typically moves up through the ground to the air above and into homes.  There are multiple pathways through which radon can enter the living space of a home.  These pathways include cracks and openings in concrete floors and through crawlspaces. 

If trapped inside a home, radon can build up to unsafe levels.  Radon is the second leading cause of lung cancer in the United States.  The EPA (Environmental Protection Agency) strongly recommends that you test your home for radon, and is a reason why radon testing has become very popular with home buyers.

Testing is the only way to know if you and your family are at risk from radon.  The system APEX uses for testing is with E-Perms, which are EIC's (Electret Ionization Chambers).  Testing is conducted by placing our highly accurate equipment in an area of the home over a 48-96 hour time frame.  Once the test is completed, the testing equipment is retrieved, then analyzed at our measurement testing lab for the results.  A report is then generated for our customers that very same day. 


If elevated radon levels are found, there are affordable mitigation systems that can be installed to minimize exposure to radon.

Radon Risk Levels (By Zip Code)

  For the Portland Metro Area

High Risk:

97009    97133    97216    97230

97019    97206    97217    97233

97056    97211    97218    97236

97106    97212    97220    97266

97115    97213

Moderate Risk:

97002    97045    97116    97210

97004    97055    97123    97214

97007    97060    97132    97215

97013    97062    97140    97219

97017    97068    97201    97222

97023    97070    97202    97223

97027    97071    97203    97225

97030    97080    97204    97227

97034    97089    97205    97231

97035    97113    97209    97232


Low Risk:

97005    97006    97008    97015

97022    97024    97032    97038

97042    97086    97124    97221

97224    97229    97239

Statistics based on research by the Oregon Radon Program.




Helpful Sites

Oregon Home Inspection Company Apex Home Inspections Radon
Oregon Home Inspection Company Apex Home Inspections Radon
Oregon Home Inspection Company Apex Home Inspections Oregon Health
Oregon Home Inspection Company Apex Home Inspections NRPP
Oregon Home Inspection Company Apex Home Inspections Radon
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