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:
5:505 near Madison, WI, US3582018-12-13 07:01:00A

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:
5:212 near Buffalo, NY, US2382018-12-13 07:21:00U
5:301 near Baltimore, MD, US1182018-12-13 07:21:00G
4:302 near Washington, D. C., DC, US492018-12-13 06:38:00G
5:304 near Virginia Beach, VA, US2152018-12-13 06:44:00U
5:310 near Pittsburgh, PA, US2932018-12-13 07:00:00U
5:311 near Philadelphia, PA, US1612018-12-13 07:11:00G
5:321 near Dover, DE, US1762018-12-13 06:49:00G
4:401 near Jacksonville, FL, US572018-12-13 06:36:00G
4:501 near Chicago, IL, US502018-12-13 07:08:00G
5:501 near Chicago, IL, US2212018-12-13 07:08:00G
5:514 near Milwaukee, WI, US2142018-12-13 00:34:00G
5:517 near Grand Rapids, MI, US2282018-12-13 07:09:00U
5:530 near Saint Paul, MN, US2772018-12-13 07:18:00G
5:533 near Duluth, MN, US1872018-12-13 07:28:00G
5:631 near Laredo, TX, US3002018-12-13 07:27:00U
5:725 near Mason City, IA, US3492018-12-13 06:51:00U
4:901 near Anchorage, AK, US432018-12-13 07:03:00G
5:901 near Anchorage, AK, US1052018-12-13 07:03:00G
4:904 near Los Angeles, CA, US802018-12-13 07:03:00U
5:904 near Los Angeles, CA, US3012018-12-13 07:03:00U
5:918 near Sacramento, CA, US2382018-12-11 15:35:00I
5:948 near Yuma, AZ, US3432018-12-11 13:20:00I

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.