What is the measurement unit of radon in the U.S.?

The measurement unit of radon in the U.S. is picocurie per liter. This unit is commonly used for measuring radioactivity, particularly in environmental monitoring of radon levels in air and water. A picocurie is one trillionth of a curie, which reflects the decay rate of radioactive materials.

Using picocuries allows for precise measurement of low levels of radon that are typically found in residential settings. This is particularly important, as radon is a colorless, odorless gas that can accumulate in homes and poses health risks when inhaled. The ability to detect and quantify radon levels in picocuries per liter gives homeowners and professionals a clear understanding of exposure risks and the need for mitigation.

While other measurement units like becquerels per cubic meter or curies are relevant in different contexts or countries, picocurie per liter remains the standard in the U.S. for assessing radon levels, emphasizing its relevance and application in health assessments and environmental guidelines.