http://pissinontheroses.blogspot.com/2012/05/alert-recent-radioactive-soot-recent.html
(c)2012 www.POTRBLOG.com

We are still analyzing the data, and more details will follow; here is what we know so far.
Between April 29th 2012 and May 8th 2012 the following short half life fallout was indicated in a sample (a partial list):

Ba-140 was identified at nearly the 95% confidence level.
La-140 was detected in a sample below the 95% confidence level.
Ce-141 was detected in a sample below the 95% confidence level.
Ru-103 was detected in a sample below the 95% confidence level.
Zr-95 was detected in a sample below the 95% confidence level.
Nb-95 was detected in a sample below the 95% confidence level

The above contaminants are typically encountered and dispersed as soot particles resulting from a recent nuclear fission and fire. Along with those contaminants, Iodine 131 was also detected in the sample at below the 95% confidence level.

We suspect the sample was contaminated on April 30th 2012 during a 20-30 minute exposure window to fresh air where frost developed on a frozen 100 square inch area sample surface area.

Given the multiple detections, some of which are parent/daughter pairs, and the short contamination exposure window, we strongly suspect a recent recriticality and fire at Fukushima.