Radiation  Packages for Sale


Downloads Free 

Chart Members Rad Map

Become a Member or Renew

Health Effects from

NOAA Weather Map


Contact Us



Concern/Watch and Alert Sites 

Each radiation monitoring site has an RBL value set by software, which is the Radiation Background Level.  RADCON-1 = R.B.L., RADCON-2 = Rising, RADCON-3 = Elevated, RADCON-4 = Concern/Watch, RADCON-5 = RAM email sent.   When the level exceeds the RADCON-4 Concern/Watch level on the chart, other conditions must be met to trigger a RADCON-5 RAM (Radiation Alert Message) email or text message to your phone.  Our software uses statistical analyses to generate these alerts.  

Do Not Panic, always check with other reliable sources. Please read the disclaimer below **

RADCON-5 RAM email sent

A Alert Site - Alert conditions met, Reliable, Active and In your local area.   RAM Radiation Alert Message email sent to clients to inform them that the radiation level has increased passed their highest level in a quarter of a year,  Be careful !
List of RADCON-5 sites:

RADCON-4 Concern/Watch

G Good  Site -  Reliable but Alert condition not met
U Unreliable   Site -  Unreliable site, not enough data points, and alert condition not met
I Inactive  Site -  Reach RADCON-4 but went inactive - no more data
List of RADCON-4 sites:
4:111 near Worcester, MA, US942021-05-16 21:02:00G
5:424 near Raleigh, NC, US4122021-05-16 21:37:00G
5:514 near Milwaukee, WI, US1342021-05-16 21:21:00G
5:530 near Saint Paul, MN, US1582021-05-16 21:27:00G
5:533 near Duluth, MN, US1522021-05-16 20:59:00G
5:708 near Kansas City, KS, US3322021-05-16 21:26:00G
4:709 near Houston, TX, US422021-05-16 20:50:00U
4:710 near Saint Louis, MO, US472021-05-16 21:35:00G
5:710 near Saint Louis, MO, US1372021-05-16 21:35:00G
5:727 near Jefferson City, MO, US1442021-05-16 21:28:00G
4:948 near Yuma, AZ, US812021-05-16 20:23:00G
5:948 near Yuma, AZ, US2412021-05-16 20:23:00G

Click here for List of Inactive EPA Stations

**  Disclaimer:

Some radiation monitoring sites are maintained by the government and other are privately owned. In either case the reading may not be accurate. Our software uses statistical analyses to generate these alerts. CPM (counts per minute) is modified by our software to reduce false radiation alert messages.

Do Not PANIC. It could be software failure or bad equipment. Always check with a second source like the news stations or the government before making any decisions about this alert.