A typical sample swipe was taken from the truck at approximately 5:45pm on 11/3/11, that sample read 59 Times greater than background radiation.
A second swipe was taken with a thicker quantity of paper towels. The greater paper towel thickness allowed more water to be pulled away from the foremost paper towel sheet, and allowed a greater surface area to be sampled. The result was a reading of 190 times greater than background radiation.
The last two Saint Louis rainfalls have both had detectable levels of Iodine 133 indicated contamination. As a result, we have taken appropriate risk mitigation actions.
More analysis and data to follow
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Is posting the new blog the actions you speak of? Is there a video in the works?
ReplyDeleteWe are taking a 48 hour reading with 6 minute averages of the data. Hopefully we will have a chart out by Sunday.
ReplyDeleteFrankly making/posting the videos is tiring; and now that we are getting steady reoccurring detections above 30x background we no longer video post every detection (but we do record them).
We are planning a video that will discuss the uncertainties in making the identifications, how one might spiral into solving for the radionuclide detections numerically- and how that uncertainty propagates down the decay/time chain.