Nov 12, 2025 · Radon is found in outdoor air and in the indoor air of buildings of all kinds. The EPA recommends homes be fixed if the radon level is 4 pCi/L (picocuries per liter) (150 becquerels per …

Understanding and monitoring the radon levels in your home is essential for maintaining a safe and healthy environment. Even lower levels between 2.0 and 4.0 pCi/L should not be ignored, as they still …

A safe radon level is typically defined as one that poses a minimal health risk, such as levels below <150 Bq/m3 or < 4.0 pCi/L - the recommended threshold set by health organizations.

Jun 27, 2023 · Radon levels of 4.0 pCi/L and above are considered high. Remember, no level of exposure to radon is considered safe, so the lower the level in a home the better.

When you hear the term radon levels, this refers to the amount of radon present in a given area (generally your home). These levels are measured in picocuries per liter (pCi/L). There is no safe …

Apr 30, 2025 · This guide explains what radon is, how it enters your home, how to test for it, what levels are considered safe, and what steps to take if levels are high, helping you protect yourself and others …

The safe level of radon at home, as recommended by the EPA, is 4 picocuries per liter (pCi/L) of air or 148 becquerels per cubic meter (Bq/m3). Levels above this are dangerous as it can cause lung …

Feb 16, 2024 · There is no known safe level of radon. You should always aim to have the lowest level. The U.S. Environmental Protection Agency (EPA) recommends fixing your home if radon levels are 4 …

Although 4.0 pCi/L is the official EPA action level, it’s not a true safety threshold – any exposure to radon gas carries risk, and many families choose to install a radon mitigation system even when readings …

Feb 18, 2026 · What is the average level of radon found in homes in the U.S.? Based on a national residential radon survey completed in 1991, the average indoor radon level is about 1.3 picocuries …