I am often asked to interpret radon testing results. The information provided can be found through the Health Canada website and the World Health Organization.
Health Canada recommends that if your long-term results are below 200 Bq/m3, further measurements are not required.
A radon concentration greater than 600 Bq/m3 then the recommended action is mitigation in less than 1 year.
A radon concentration greater between 200-600 Bq/m3 then the recommended action is mitigation in less than 2 years.
The choice to have your house mitigated is at the home owner's discretion. Individuals may choose to mitigate their house when their levels are less than 200 Bq/m3.
Let's take your home for example. Your tests came back at 250 Bq/m3.
There are 24 hours in a day X 365 days/ year =8760 hours in a year
You spend 80 % of your time in your house = 7008 hours
Your radon level x 7008= 250 Bq/m3 x 7008= 5.84 mSv every year for each person living in the house.
Here is the approximate radiation with X-Rays/CT scans:
Head CT 1-2 mSv
• Chest CT 5-8 mSv
• Abdomen CT 5-10 mSv
• Pelvis CT 3-4 mSv
• Abd-Pelv CT 8-15 mSv
• Chest x-ray 0.02 mSv
• Abdomen x-ray 0.07 mSv
(C. McCollough, MDCT Course 2003 San Francisco)
Based on a level of 250Bq/m3 in your house that is the equivalency of every in the house getting 1 Chest CT per year.
If you have purchased a long-term test with Jones Radon Services then you can access your results by:
Then enter the tracker ID#
Enter your postal code
Both you and I will also receive a confirmation email when the results are completed.