Test Result of Radioactive Dirt from Kashiwa Posted on July 13, 2011 by axmatsuoka I sent some dirt to a lab to get it tested for iodine 131, cesium 134, and cesium 137 last week, and I got the result back (http://tinypic.com/view.php?pic=rcoa3k&s=7). I 131 = not detected Cs 134 = 23,663 Bq/Kg Cs 137 = 28,884 Bq/Kg This is the dirt from where I detected over 7.00 micro SV/h on the ground surface. The dirt sample was collected by the side of the street where kids walk to schools every day. These micro hot spots are found everywhere in the city. Here is the place the sample was collected. http://www.youtube.com/watch?v=0Mir-HZWdl4&feature=player_embedded There was a news that the dirt sample from a school in Misato, Saitama prefecture contained 13,812 Bq/Kg of radioactive cesium. The test result for the dirt from Kashiwa greatly exceeds it. Here is the information on the evacuation zones in Chernobyl, determined by the amount of cesium detected in the soil.
60 :
Over 1,480,000 Bq/u : mandatory evacuation zone Over 555,000 Bq/u and less than 1,480,000 Bq/u: evacuation zone Over 185,000 Bq/u and less than 555,000 Bq/u: given a right to evacuate/relocate Over 37,000 Bq/u and less than 185,000 Bq/u: radiation controlled area Please note that the unit is Bq/u, not Bq/Kg. According to Nuclear Safety Commission, we can calculate the amount in Bq/Kg to Bq/u by multiplying 65. (23,663 Bq/Kg + 28,884 Bq/Kg ) X 5 = 3,415,555 Bq/u The little super hot spot in my neighborhood would be a mandatory evacuation zone it it was in Chernobyl. The city of Kashiwa continues to tell the residents that there is no danger. http://fromkashiwa.wordpress.com/2011/07/13/test-result-of-radioactive-dirt-from-kashiwa/