Radiation Monitor
This page auto-refreshes every 5 minutes
![]() Union City, CA USA |
|||
![]() |
![]() |
2025-02-21 07:25:14 | |
CPM : | |||
![]() |
![]() |
µSv/h : |
0-50 CPM | Normal |
51-100 CPM | Moderate |
101-200 CPM | Alert |
Over 200 CPM | Hazardous |
Suggested background readings levels:
1. Safe level: Less than 50 CPM or 0.325 μSv/h. Means no worry at all.
2. Attention level: 51 CPM – 99 CPM. or 0.326 μSv/h – 0.65 μSv/h . Means you need to find out why.
3. Warning level: More than 100 CPM or more than 0.65 μSv/h. Means do not stay in this area for long period.