Graph Your Data to Provide the Most Accurate Results!

Technology advances improve our ability make accurate recommendations to mitigate or not to mitigate.

Just about all modern, industrial, Continuous Radon Monitors produce graphs that allow you to determine unusual fluctuations in radon levels that can produce false high or false low results.

But even users of antiquated equipment can graph their data in just a few short minutes by simply capturing the raw data and plugging it into an excel spreadsheet!


Here is an example of how graphing your data brings confidence to your recommendations and can save buyers and/sellers thousand of dollars!

4.1 pCi/L Example: Tested Saturday morning to Wednesday morning:

Roof Tear Off

4 Day test

Without a graph, it would have been difficult to observethe unusual fluctuations in the last 48 hours of this test.

Park West Raw Data.

 This is what the data would look like if we had only tested from Monday morning to Wednesday morning.

Roof Tear Off last 2 days

But the data from those two days could be interpreted as a normal diurnal cycle!

However, after a brief 2 minute conversation, the homeowner indicated that a Roof Tear Off occurred on the third day and the attic vents & soffits were replaced on the 4th day. This was not anticipated activity by the tester considering the home is only 4 years old.


A retest Roof Tear Off 2 of the property was conducted immediately following the original test and results were 2.1 pCi/L.

Roof Tear Off w Retest

Had the results simply been rubber-stamped as ‘Fail’, the seller might have spent unnecessary dollars on mitigation. Worse, the seller could have had the original report analyzed and determined the tester to be negligent.

Monitors with good graphs provide confidence in results, can prevent unnecessary mitigation expense and save human lives!

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