Radiation Hotspots Near Tokyo

2.17μSv/hr ~ 19 millisieverts per year, approx 214km south west of Fukushima Daiichi nuclear power plant:

Fukushima 311 Watchdogs

From Sugar Nat

Present radiation hotspots in Nagareyama city, Chiba Prefecture (near Tokyo)

Measure taken at 1m from the ground : 0.57μSv/h


Measure taken at 50cm from the ground : 0.89μSv/h


Measure taken at ground level : 2.17μSv/h

Read more in Japanese :


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