Frequent Questions

What is a deployable monitor and how is it different from RadNet fixed monitors?

The EPA has 40 portable air monitors which can be deployed during a radiological release, allowing for additional flexibility in responding to radiological emergencies. These monitors are used when higher density air monitoring is needed, usually near the source of a release of radioactive materials. The deployable air monitors are intended to be used to provide additional short-term air monitoring data.

RadNet deployable monitors send gamma exposure rates in near-real-time to the EPA's National Analytical Radiation Environmental Laboratory (NAREL) where the data are processed. However, unlike the fixed air monitors, RadNet deployable monitors are not equipped to measure radioactivity emitted from particulates captured on the filter. The deployable monitors collect air particulate on filters, which are later analyzed at the laboratory.


For more information about RadNet deployable monitors, visit Learn About RadNet on

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