RadNet Near-Real-Time Air Data
The nationwide RadNet system monitors the nation's air to track radiation in the environment. Over time, RadNet sample testing and monitoring results show the fluctuations in normal background levels of environmental radiation. The RadNet system will also detect higher than normal radiation levels during a radiological incident. See the dashboard below to view measurements of gamma radiation in near-real-time.
On this page:
RadNet has 140 radiation air monitors in 50 states and runs 24 hours a day, 7 days a week. You can view measurements of gamma radiation in near-real-time. Use the Dashboard below to select the monitoring location. You can also export hourly near-real-time gamma radiation data.
RadNet near-real-time monitoring data are available for download.
- Download Hourly Data as a CSV File
- Search Hourly Data in the RadNet Database in EPA’s Central Data Exchange
- View RadNet Databases and Reports