Fuk-D: radiation monitoring

The Japanese Atomic Energy Authority has online environmental radiation monitors.
The list of stations is here.

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The monitoring station at O-arai is the one between Fukushima and Tokyo.

Ambient radiation levels there are 30-40 nGy per hour.
Current levels are around 300 nGy/h - ten times normal.

Acute radiation effects are seen around a dosage of a Gy,
so long way to go - currently getting close to μGy/h.
Things get serious around milliGy/h.

7 day graph is here

Watch that curve.

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