Tokyo local government announced the contamination situation of refuse incineration ash in Tokyo.
According to the data, only the “minor part” of the ash contains 1,525 ~ 12,390 Bq/Kg of cesium-134, -137 on the daily basis. (page 2)
It’s from our everyday garbage.
Refuse incineration ash is separated into the major part and the minor part.
The later one is the dust trapped in the filter.
This is the data of the minor part.
About the major part, the data is blank for some reason.
On 6/28/2011,they decided that radioactive ash which is lower than 8,000 Bq/Kg can be treated as normal garbage.
These “minor” part of ash will be abandoned normally or fly out of the waste incineration plant and come back to our lives.
If we become eager to decontaminate, the contamination situation will be even worse than this.
The data about the major ash is blacked out but it can be assumed that it is way worse than the minor part of it, which is on the sheet.
Below is the graph to compare each waste incineration plant, made late September.
(Source)
Edogawa ku seems to be the champion of contamination.
That is where the Hotel radiation must be located at.
(Source)