UPDATE: There is also a 3X AIRBORNE detection in San Francisco, see blog comment section below
!MAXIMUM ALERT! AIRBORNE RADIOACTIVITY 5 TIMES GREATER THAN BACKGROUND RADIATION in Saint Louis @ 4:39 pm 6/4/12
We noticed elevated AIRBORNE radioactivity after a super cell thunder storm moved near our location. The heaviest part of the storm had passed approximately 15 minutes prior to the readings you will see in the video.
These are the highest airborne radioactivity readings we have ever measured in Saint Louis. The airborne readings can be seen at the start of the video and at approximately 5:20 minutes into the video. At the 5:20 minute mark we retrieved two additional pancake Geiger counters to confirm the measurements. These two additional Geiger counters were set to record 6 minute averages but visually update more frequently; one of them had the Beta shield removed. The original Geiger counter was recording on a 30 second moving average.