Fallout level spiked in Fukushima city / Highest reading since last October

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Fallout level in Fukushima city spiked up on 1/26/2014.

The reading was 48.3 MBq/km2 (Cesium-134/137), which was the highest since 10/13/2013.


The increase of fallout level was observed from January to February of 2013 too. It can be linked to the seasonal wind.

(cf, Fallout spiked in Fukushima, highest reading in last 7 months [URL])






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Un pic de retombées radioactives sur la ville de Fukushima : Le record depuis octobre dernier
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Le niveau des retombées sur la ville de Fukushima a marqué un pic le 26 janvier 2014.
Le relevé était de 48,3 MBq/km² (césium 134/137), ce qui est le record depuis le 13 octobre 2013.

Une augmentation des retombées a été également observée entre janvier et février 2013. Ce ne peut être lié aux vents de saison. (cf. Un pic de retombées sur Fukushima, les plus hauts relevés depuis 7 mois)


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  1. 40 Mbq is much higher than I tough. These levels are very dangerous and no human should be exposed to these poisonous gazes (see effects on the sailors on board the USS Reagan). The effects will be felt stronger as time goes by.

    1. The indicated units are MBq/km2

      per square kilometer (is a BIG area)

      The radiation is detectable, and NOT a good thing. (however) Perhaps your reaction is a bit overmuch. Wouldn’t that work out to 48.3 Bq/m? Fifty counts over background is, in the grand scheme of things, less than instant doom. Long-Term internal exposure after the high levels of 2011 is going to take its toll on the locals.

      I do not recall the specific readings during the 3 explosions. They were actually deadly (short-term) and carcinogenic, assuming that the victims lived long enough to develop cancer. There were some NASTY isotopes in the air, in HIGH concentrations, back during March 2011.



      1. A human inhale, what, 10 cubic meter of air per day.
        That’s 4000 in a year.
        48.3 Bq per m is a lot.
        On that’s only cesium. Add the other radioclides, it could total up to 4000 x 4000 bq/m. Only in a year.
        Plus add the side intakes: water deposit drunk, dust inhaled, rain air absorption.
        A day there? maybe. Living there is very dangerous.
        We are taking Strontium, Technetium, plutonium,kadnium (hundreds of others) all extremely dangerous even at very low dose.

        1. I agree with the general notions,

          Grave Public Health hazards are posed by internal radionuclides, such as Beta, Gamma, Neutron and Alpha emitters.

          The Linear No Threshold (LNT) is an appropriate model for Public Health Considerations.

          Radiation effects, like smoking effects are cumulative.

          Honshu Island residents face extreme PERSONAL Health, not merely public health, damages from their cumulative PERSONAL nuclear fallout exposures.

          The indicated values, given the cumulative population exposures, would quite probably recommend ‘shelter in place’ precautions, particularly for children, pregnant women, heart patients; if not for the entire population.

          Shelter in place, face masks, filtration and decontamination are NOT panic. They are simple, effective, proven, public health precautions, with PERSONAL health consequences.

          BLIND, MINDLESS, PARALYZED, PANIC is what the Japanese government is CONTINUING to do (nothing), with their equally fraidycat counterparts in other governments.


          Bill Duff

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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.


January 2014