Matsudo city government “Don’t go close to the river, the radiation level is overly high”

↑ A warning of Matsudo city gov in Chiba. It reads “In this area (to the next bridge), radiation level goes higher toward the river. For the safety measure, please don’t go close to the river. The highest reading was 1.026 μSv/h on 3/11/2014.”


Matsudo city government in Chiba warns not to go close to the river side.

It’s Kokubu river.

From their survey on 2/26/2013 (their website states it was 2013, but it can be a typo of 2014), the highest reading was 1.33 μSv/h at 1m from the ground beside the river.

Especially around a bridge called Reimei, they measured over 1 μSv/h at 3 points. The area was blockaded by the municipal government.


In their following survey of 3/11/2014, they still measured 0.804 ~ 1.026 μSv/h.


Usually water shields radiation so the radiation level can be lower than other locations. However the river seems to accumulate the contamination in Chiba prefecture. Fukushima Diary recommends not to get close to the river in Kanto area. (cf, Fukushima gov to open swimming beach / 94 Bq/Kg from sea floor, but don’t even check sand [URL])



You read this now because we’ve been surviving until today.


Français :

La municipalité de Matsudo : “Ne vous approchez pas trop près du fleuve, la radioactivité y est trop forte “


↑ Avertissement de la municipalité de Matsudo de Chiba. On lit : “Dans cette zone (jusqu’au prochain pont), la radioactivité augmente vers le fleuve. Par sécurité, merci de ne pas vous approcher du fleuve. Le record relevé a été de 1,026 μSv/h le 11 mars 2014.”

La municipalité de Matsudo de Chiba prévient de ne pas s’approcher des berges du fleuve.
Il s’agit du Kokubu.
Selon leurs sondages du 26 février 2013 (leur site web affirme que c’était en 2013 mais ce peut être une faute de frappe pour 2014), le record relevé a été de 1,33 μSv/h à 1 m du sol sur les berges.
Ils ont relevé plus de 1 μSv/h en 3 points, en particulier aux alentours d’un pont nommé Reimei. L’endroit a été isolé par la municipalité.

Ils relevaient toujours entre 0,804 et 1,026 μSv/h, au cours de leur investigation du 11 mars 2014.

Habituellement, l’eau protège de la radioactivité ce qui fait qu’elle peut en être plus faible qu’ailleurs. Néanmoins, le fleuve semble accumuler la contamination dans la préfecture de Chiba. Le Fukushima Diary recommande de ne pas s’approcher des cours d’eau de la région de Kanto (cf. La pref de Fukushima ouvre une plage à la baignade : 94 Bq/kg au fond de la mer mais ils ne contrôlent même pas le sable).

Vous pouvez lire ceci parce que nous avons survécu jusqu’à aujourd’hui.

  1. Shutter the WORST of the WORST, please

    Perhaps the USA NRC and Japan should join Planet Earth in outlawing the architectural DEFICIENCIES of the General Electric Mark-1 pseudo-containment design. The GE Mark-1 power plants are the WORST of the WORST of the WORST of the civilian operated nuclear power station equipment on the Blue Planet.

    Perhaps the NRC and Japan should CANCEL ALL the GE Mark-1 operating licenses, in the USA; rather than extend their licenses by ANOTHER twenty (20) YEARS.

    Is it too much to ask, that the USA NRC and Japan Inc. outlaw the most hazardous design on EARTH? Pretty Please! Simon Says, “Mother May I?”

    I do not personally care, if Japan builds a credible nuclear arsenal for national defense. Nor do I object to Japan constructing a few experimental civilian nuclear power reactors, incorporating the PHYSICS LESSONS of FDU-3, into those designs. CAN Japan design and construct a structure that would CONTAIN the explosive detonation of FDU-3?

    Tick-Tock, Tick-Tock, time is running out.

    1. You had some nerve to criticise me for commenting on old posts. Now you’re doing it, but instead of a valid comment you are just pasting the very same shit in several places. Go away, mr bill duff.

  2. Losers:

    General Electric Mark-1 systems are LOSERS! Forty (40) Years is 40 Years too long to operate a (KNOWN) dangerously deficient design! A 20 year license renewal for a GE Mark-1 civilian nuclear power plant is INSANE.

    MOX Fuel is a LOSER! MOX FUEL should NEVER have been loaded into ANY GE Mark-1 civilian nuclear power plant.

    Use of MOX FUEL in a super-annuated, vugged up, corroded, deficiently designed power plant is very possibly the most insane act in recorded human history.


Comments are closed.

About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


May 2014