NumburrOne
Member
- Dec 31, 2013
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Now You can Prepare...
The Lab Results are in...
Estimation of Cesium in Sand and Soil Samples in the United States, 2012-2013
May 21, 2014
oil and sand samples were obtained between April 2012 and December of 2013 from a broad spectrum of areas ranging from almost every region in the continental United States. Each sample upon collection and/or receipt was placed in a standardized jar, labeled, weighed, tested with an Inspector Geiger counter and sealed. The samples were then stored for at least 3 weeks prior to testing with an NaI(Tl) scintillator and a GS1100A multichannel analyizer to determine the presence of radiation through gamma spectroscopy. The scintillator was calibrated with a cesium-137 NIST standardized checksource and a cobalt-60 checksource, then 48 samples were tested for 8 hours each with regular background tests performed between December 2013 and January 2014
Results: Twenty-two (22) of forty-eight (48) samples yielded statistically significant detections for Cesium-137. Of those, six (6) yielded statistically significant detections for Cesium-134. Considering sample collection and testing dates with respect to the Fukushima Diachii NPP multiple meltdowns of March 11, 2011, those detections are strongly indicated as resulting from the same due to atmospheric deposition.
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