See Our New Feature: 24-Hour Map Animation Sites NETC.com RADCON 1 RadiationBackgroundLevel | RADCON-2-Rising | RADCON-3-Elevated | RADCON-4-Concern/Watch | RADCON-5-ALERT Nuclear Emergency Tracking Center - Netc.com is an Early Warning Radiation System that takes data from private radiation monitoring stations and EPA network and creates a RBL ( Radiation Background Level ) for each 3000+ stat