Iodine 131 measured at purification center in Shizuoka and increasing

Iodine 131 is measured from dired sludge and incineration ash at purification center of Shizuoka prefecture.

About incineration ash, the iodine 131 level is increasing from 11/11/2011.

 

Incineration ash
Nakashima purification center  Bq/kg
Sample taken Iodine Cesium
3/1/2012 107 317
2/2/2012 80 159
1/5/2012 18 209
12/9/2011 59 260
11/11/2011 19 273
10/14/2011 ND 352
9/15/2011 ND 411
8/18/2011 ND 304
7/21/2011 ND 439
6/20/2011 ND 731
5/27/2011 ND 631
Dried sludge
Johoku purification center
Sample taken Iodine Cesium
3/1/2012 18 ND
2/2/2012 140 ND
1/5/2012 58 ND
12/9/2011 190 ND
11/11/2011 26 ND
10/14/2011 114 ND
9/15/2011 ND ND
8/22/2011 85 ND
7/21/2011 50 ND
6/20/2011 148 36.7
5/27/2011 12.2 16.2
Nakajima purification center
Sample taken Iodine Cesium
3/1/2012 72 ND
2/2/2012 50 ND
1/5/2012 ND ND
12/9/2011 51 ND
11/11/2011 28 ND
10/14/2011 32 ND
9/15/2011 ND ND
8/22/2011 70 ND
7/21/2011 33 87
6/20/2011 26.3 ND
6/13/2011 29.0 22.1
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