Following up this article..Tokyo is contaminated as the worst place in Chernobyl
39,488 Bq/Kg of cesium (134 + 137) was measured in Edogawa ku in Tokyo. It equals to 2,566,720Bq/㎡.
In the secondary evacuation area in Belarus, it was 555,000 ~ 1,480,000 Bq/m2 of cesium 137.
Even if you consider the data of Tokyo includes cesium 134, still it can be near the maximum limit of the secondary evacuation area in Belarus.
— 東京江戸川放射線 (@edogawa_aoyama) January 15, 2012
On 1/8/2012, we measured the sand of the street in Edogawa ku Tokyo, the result is like on the picture above. 39,488 Bq/Kg of cesium 134 + 137.