MEASURING THE RADON LEVEL
IN YOUR HOME

Luckily a physical test can determine the concentration of Radon in your home and, if found high according to EPA guidelines, mitigation of the problem can be done.
From a choice of several EPA approved types of tests we use the following:

Short term passive tests. These are tests done over an integrated, continuous period of two to seven days via the electret method (E-PERM). They have the advantage not to depend on the electrical systems in your home, and are not influenced by humidity levels, They are more likely used by home-owners who are concerned about their radon level or sellers before putting their home on the market as opposed to buyers during real estate transactions.

Short term active tests. These are tests done over a 2 day period using a Continuous Radon Monitor. These tests are usually used by buyers in REAL ESTATE transactions as they have the advantage that the test has tamper resistant features built in..

Radon Decay Product Tests, also called Working Level Meter Tests. These are tests done over a 2 day period using a Continuous Radon Decay Products Monitor. These tests are usually used in a Commercial Environment because the OSHA guidelines governing the working environment were historically formulated in terms of the radiation level (Working Level) to which workers in the radiation industry were exposed. This applies to all working environments nowadays.
Buyers in REAL ESTATE transactions may use these meters assuming that the Equilibrium Factor, a measure of the fraction of free floating radon decay products is assumed to be 50%.

Alpha track detectors are integrated tests over 90 days or more.
They are usually used in the case home owners have found levels close to the EPA threshold using one of the short term tests described above. In such a case the home owner wants to approach a more accurate estimate of their year long, average exposure to Radon. Alternatively they are used by home owners who have had their home mitigated and want to verify whether their home remains below the EPA threshold for mitigation over longer duration.
The laboratory that produces the Alpha track detectors we use is NEHA certified.