Between the Poles: Fukushima Daiichi: Radiation dosage levels 20 km and more from plant decreasing

Geoff Zeiss

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April 17, 2011

Fukushima Daiichi: Radiation dosage levels 20 km and more from plant decreasing

MEXT is recording radiation dosage readings every three hours in the region 20 km and greater from the Fukushima Daiichi nuclear power plant. The latest maximum readings reported April 16 occur ar reading posts [32] and [83].

[32] Futaba county Namie town Akougi Teshichiro (About30km northwest)

25.3 μSv/h at 10:13 April 16

[83] Futaba county Namie town Akougi Kunugidaira (About20km northwest)

43.8 μSv/h at 11:15 April 16

Previous readings March 31

38.0 μSv/h at reading post [32]
55.6 μSv/h at reading post [83]

Previous readings at [83]

87.0 μSv/h 2011/3/27 10:25 (21:25:00 Saturday March 26 ET)

Previous readings at [32]

45.0 μSv/h 2011/3/27 11:55 (22:55:00 Saturday March 26 ET)
50.0 μSv/h 2011/3/27 11:30 (22:30:00 Saturday March 26 ET)
105.0 μSv/h at 2011/3/20 15:03 (02:03 am Sunday March 20 ET)
110.0 μSv/h at 2011/3/20 14:03 (01:03 am Sunday March 20 ET)
110.0 μSv/h at 2011/3/20 13:03 (00:03 am Sunday March 20 ET)
132.0 μSv/h at 2011/3/19 11:20 (10:20 p.m. Friday March 18 ET)
136.0 μSv/h at 2011/3/19 10:20 (09:20 p.m. Friday March 18 ET)
135.0 μSv/h at 2011/3/19 9:20 (08:20 p.m. Friday March 18 ET)
150 μSv/hr Mar 18 13:32 (00:32:00 Friday March 18 ET)
140 μSv/hr Mar 18 12:33 (11:32:00 Thursday March 17 ET)
140 μSv/hr Mar 18 11:33 (10:32:00 Thursay March 17 ET)

Posted at 10:07 AM in Environment, Fukushima Nuclear Incidents | Permalink

Comments

"MEXT is recording radiation dosage readings every three hours in the region 20 km and greater from the Fukushima Daiichi nuclear power plant."

I'm not sure how correct it is to identify this as MEXT readings. Now, I'm fine if you say that MEXT is reporting readings every so-and-such often.

I like this site:
http://fleep.com/earthquake/

And I find the data sources to be interesting. He allocates the readings to the prefectures themselves, which could be most correct for all I know. I would think that the ultimate driver for taking all the readings would be a cabinet office, yes, but I don't know if we have enough information to determine that.

Posted by: Alan | April 17, 2011 at 11:18 PM

You're quite right. The observations at [32] and [83] were recorded by JAEA　（Japan Atomic Energy Agency） and reported by MEXT.
http://www.mext.go.jp/component/english/__icsFiles/afieldfile/2011/04/18/1305090_041819.pdf

Posted by: Geoff | April 19, 2011 at 12:26 AM

The comments to this entry are closed.

Between the Poles

Geoff Zeiss

November 2023

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April 17, 2011

Fukushima Daiichi: Radiation dosage levels 20 km and more from plant decreasing

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