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RadNet

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  • Nationwide Environmental Radiation Monitoring

    EPA's RadNet system monitors the nation's air, ambient exposure rates, precipitation and drinking water for radiation.

RadNet Dashboard for Near-Real-Time Air Data

image of radnet qlik dashboard

RadNet air monitoring results are now available on the RadNet Dashboard.  Use the Dashboard to view graphs of gamma radiation monitoring results at a specific location.

  • View Near-Real-Time Monitoring Results
  • Learn How to Use the RadNet Dashboard

RadNet has 140 radiation air monitors in 50 states and runs 24 hours a day, 7 days a week collecting near-real-time measurements of gamma radiation. Over time, RadNet sample testing and monitoring results reveal the normal background levels of environmental radiation.

RadNet Basics

radnet air monitor
 
  • Learn About RadNet
  • History of RadNet
  • Frequent Monitoring Questions

RadNet Monitoring

Image of map from radnet qlik dashboard
 
  • RadNet Near-Real-Time Air Data
  • RadNet Laboratory Data by State
  • RadNet Sampling and Analyses Schedules
  • Databases and Reports

Radiation-Related Information

  • EPA Radiation Home
  • International, Federal and State Government Environmental Radiation Monitoring Networks
Contact Us about RadNet to ask a question, provide feedback, or report a problem.
Last updated on February 17, 2026
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OMB Approval #1090-0008 · Expiration Date 11/30/2027