Airthings Explains: What Do My Radon Levels Mean?

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Airthings Explains: What Do My Radon Levels Mean?

Radon levels are measured in Becquerels per cubic meter (Bq/m3); however, in the United States it is pico Curies per liter (pCi/L).


Recommended radon levels vary from country to country. For example, in the United States, the action level is 2.7 pCi/L. Here in Norway it's different, set at 100 Bq/m3. If you are not sure what your regions acceptable levels are, just refer to the World Health Organization's recommendations.

OK, now that you know your radon levels in your home, you also need to know what these numbers mean. Let's take a closer look at the radon levels. 

Radon levels at up to 49 Bq/m3 and at this stage, no action is really needed, but you should continue monitoring.


Up to 99 Bq/m3, radon levels are considered low. Keep an eye on your daily averages and continue monitoring. In the meantime, you can experiment with ventilation and sealing cracks in the foundation of your home to reduce levels. 

Radon levels from 100 to 299 are consider moderately high, so action may be needed. Experiment with ventilation and continue measuring your radon levels. If up to 3 months nothing changes, you should contact a radon professional. 

Radon levels above 299 are high and action is needed. You should contact a professional radon mitigator. 

So remember: maintaining low radon levels plays an important part in living a health lifestyle. There are a number of ways you can keep your radon levels low: try improving ventilation, sealing cracks in your home's foundation, or installation a mitigation system. When you following your radon levels daily with a digital radon detector, it is easy if more steps need to be taken.