United States Radiation Monitoring
Track radiation levels across the USA from independent monitoring stations worldwide.
239 CPM
40 US stations
Top US Stations
Harlem, USA
Harlem, USA
Safe
239
CPM
1.941
µSv/h
13:07
Oct 10
Des Moines, USA
Des Moines, USA
Safe
118
CPM
0.135
µSv/h
13:07
Oct 10
San Jose, USA
San Jose, USA
Safe
99
CPM
0.564
µSv/h
13:07
Oct 10
Morton, USA
Morton, USA
Safe
65
CPM
0.371
µSv/h
13:07
Oct 10
Cooper Gap, USA
Cooper Gap, USA
Safe
58
CPM
0.331
µSv/h
13:07
Oct 10
Kalispell, USA
Kalispell, USA
Safe
46
CPM
0.374
µSv/h
13:06
Oct 10
Hartford, USA
Hartford, USA
Safe
45
CPM
0.375
µSv/h
12:40
Oct 10
Denver, USA
Denver, USA
Safe
42
CPM
0.350
µSv/h
12:40
Oct 10
Black Forest-Peyton, USA
Black Forest-Peyton, USA
Safe
37
CPM
0.211
µSv/h
13:07
Oct 10
Concord, USA
Concord, USA
Safe
35
CPM
0.292
µSv/h
12:40
Oct 10
US Radiation Network
EPA Environmental Protection Agency · ~130+ fixed monitoring stations across all 50 states
Stations
6
Max CPM
45
Above Safe
0
Updates: Every 2 hours via EPA API · Data from official federal monitoring stations
Nuclear Power Stations
Subscribe to view historical data
Paid subscribers can search operational status up to 30 days back.
Data from NRC (Nuclear Regulatory Commission) · Last updated: Oct 10, 2026
Government stations
Federal monitoring
Nuclear Plants
Operational & decommissioned
Coverage
All 50 states + territories
Updates
Hourly readings