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:
5:101 near Hartford, CT, US3332019-07-21 09:33:00U
5:108 near Boston, MA, US3422019-07-21 09:40:00G
5:113 near Portland, ME, US4932019-07-21 09:25:00G
5:115 near Burlington, VT, US1722019-07-21 09:20:00G
5:208 near Shirley, NY, US1322019-07-20 21:20:00U
5:210 near San Juan, PR812019-07-21 09:18:00U
5:301 near Baltimore, MD, US1642019-07-21 08:54:00G
5:302 near Washington, D. C., DC, US1042019-07-21 09:24:00G
5:304 near Virginia Beach, VA, US2562019-07-21 09:12:00G
5:307 near Charleston, WV, US3292019-07-21 09:49:00G
5:310 near Pittsburgh, PA, US2912019-07-21 09:40:00G
5:311 near Philadelphia, PA, US1882019-07-21 09:51:00G
4:321 near Dover, DE, US472019-07-21 07:58:00U
5:321 near Dover, DE, US1632019-07-21 07:58:00G
5:408 near Montgomery, AL, US1832019-07-21 09:37:00G
5:410 near Knoxville, TN, US2312019-07-21 09:34:00G
5:412 near Orlando, FL, US1502019-07-21 09:18:00U
4:429 near Augusta, GA, US742019-07-21 09:39:00U
5:429 near Augusta, GA, US3532019-07-21 09:39:00U
5:517 near Grand Rapids, MI, US1932019-07-21 09:17:00G
4:534 near Champaign, IL, US682019-07-21 08:54:00G
5:607 near Lincoln, NE, US2922019-07-21 09:49:00U
5:610 near Albuquerque, NM, US2482019-07-21 09:35:00G
5:622 near Fort Smith, AR, US2492019-07-21 09:47:00U
5:637 near South Valley, NM, US3752019-07-21 09:36:00U
5:707 near Dallas, TX, US1712019-07-21 09:21:00G
5:708 near Kansas City, KS, US4062019-07-21 09:25:00G
5:712 near Fort Worth, TX, US2132019-07-21 09:52:00G
4:713 near Omaha, NE, US652019-07-21 09:09:00G

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.