Different Radon Levels And What They Mean
If you’ve completed an at-home, store-bought radon test and followed the necessary steps, you’ve no doubt been presented with a combination of letters and numbers that you may find confusing. Since you are not a radon expert, it’s normal to be left wondering what it all means. As one of the leading radon mitigation companies in Iowa, allow us to help you decipher the code.
What is pCi/L?
Let’s start with the letters. pCi/L stands for picocuries per liter. A picocurie is a unit of measurement used to describe the amount of radioactive decay occurring per unit of time. When it comes to radon, pCi/L measures teh concentration of radon gas in the air. The higher the level of pCi/L, the more picocuries of radon are in the air.

Below 2.0 pCi/L:
We would consider this number to be low risk. if you’ve completed an at-home radon test and received a number below 2.0 pCi/L, you do not need to take immediate action. However, we still recommend retesting every few years to see if anything changes.
2.0 – 4.0 pCi/L:
If your radon levels come back with a score between 2.0 and 4.0 pCi/L, this is what we would consider moderate risk levels. The more time you spend in the lower levels of your home, the more at risk you will be to the symptoms of radon exposure. We recommend radon mitigation to lower levels and keep you safe.
4.0pCi/L or above:
Unfortunately, Iowa is one of the states that regularly ranks highest in radon levels. Shockingly, around 7 in 10 homes in Iowa will test above 4.0 pCi/L at any given time. That’s why Milledge Construction is so passionate about education and comprehensive radon services.
Contact us to learn more about our radon services
Don’t let radon become a silent intruder in your home. Contact Millage Construction today to schedule a radon test and provide you peace of mind.
Please use the form on this page to email us. You can also call (641) 436-8260 to speak with us directly