jeudi 17 mars 2011

Radiation levels in Tokyo on March 16th (yesterday)

A French graduate student at University of Tokyo is keepng the French community updated with the radioactivity readings carried out by the university, independently of figures reported by the government. Here they are:

As part of university-wide measures against radiation, the University has established
the Environmental Radiological Countermeasures Project Team, as a unified University
entity, in order to tackle the current radioactive-related issue facing Japan.
The Project team will be led by Professor Yoichiro Matsumoto, Executive Vice
President.

Latest Radiation Readings(Provisional values)
Date: 3/16
Time Dose-Rate (micro Sv/h)

 0:00   0.09 - -
1:00    0.08 - -
2:00    0.1 - -
3:00    0.14 - -
4:00    0.17 - -
5:00    0.17 - -
6:00    0.18 - -
7:00    0.13 - -
8:00    0.16 - -
9:00    0.13   0.07 -
10:00  0.09   0.08 -
11:00   0.1    0.07 -
12:00  0.09 - -
13:00  0.10 - -
13:30  0.06 -
14:00  0.09 - -
15:00  0.10 0.06 -
16:00  0.09 - -

[Reference]
Radiation dose rate in natural environments; 0.1 – 0.3micro Sv/h
The value in natural environments varies depending on areas or weather conditions.
Areas around some natural spas or granites rocks could show readings of relatively
higher dose rates even though such areas are a natural environment.

There is no need to take any emergency measures at the moment.

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