Should I be concerned about the accuracy of radon test kits?

Accuracy and reliability reside in the overall measurement approach. EPA's measurement recommendations were designed to both maximize the amount of public risk reduction and to address the need for test devices that are easy to obtain, cheap to buy and simple to administer. While it is true that any given radon testing device or instrument will have an associated variability in precision and accuracy, EPA's recommendations raise the probability that homes with elevated radon will be identified and fixed. For example, EPA recommends using multiple short-term tests to reduce errors and increase the likelihood that the correct mitigation decision will be made. In addition, EPA recommends testing every two years or following a significant renovation. EPA advises consumers to seek the advice of state public health officials and qualified measurement professionals for further guidance. Presently, EPA is participating in several efforts to gather current data on the accuracy and reliability of testing devices and measurement results. As data are gathered, EPA will make available the latest information.

Read more at www.epa.gov/radon

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