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i still don't know what you try to find out. give me a hint ?

@lillymunster they make strange calculations about that you would die of radiation when you eat tokyo soil for the next 625 years .......... but you cannot easily convert Bq into Sv. it is mixed up in the article.

Umrechnung in eine Strahlendosis:
Eine generelle Umrechnung von Becquerel in eine Strahlendosis (z.B. Sievert, s.u.) ist nicht möglich, weil die verschiedenen radioaktiven Isotope unterschiedliche Zerfallswege mit entsprechenden Strahlungsenergien aufweisen. Außerdem ist die Strahlenwirkung für äußere Bestrahlung völlig anders zu bewerten als wenn die radioaktiven Isotope inkorporiert werden.
www.j-schoenen.de

Conversion to a radiation dose:
A general exchange of Becquerel (rad activity) in one ray dose (eg, Sievert, see below) is not possible because the different isotopes have different radioactive decay paths with appropriate radiation sources. Moreover, the effects of radiation for external irradiation to evaluate completely different than when the radioactive isotopes are incorporated.

Beispiel Caesiom-137: Cs-137 zerfällt mit einer Halbwertszeit von 30,71 Jahren über einen Betaminuszerfall in das metastabile Barium-137. Die Betaenergien betragen bei diesem Zerfall 0,5 MeV und 1,2 MeV. Metastabil bedeutet, dass das Barium nach 2,55 Min über die Abstrahlung von Gammastrahlung mit einer Energie von 0,662 MeV in seinen Grundzustand übergeht und dann stabil ist. Mit Hilfe von Modellrechnungen und Messungen kann festgestellt werden, dass eine Aktivität von rund 70 000 Bq von inkorporiertem-Cs 137 zu einer Ganzkörperexposition, also einer effektiven Äquivalentdosis, von ca. 1 mSv führt. Der Verzehr von 1 kg kontaminierter Pilze aus Bayern, z.B. mit 7000 Bq würde somit zu einer zusätzlichen Strahlenbelastung von 1/10 mSv = 0,1 mSv führen. Bei einer mittleren jährlichen natürlichen Strahlenbelastung von 2,4 mSv ist eine derartige Strahlenbelastung vernachlässigbar klein.

Example Caesiom-137 Cs-137 decays with a half-life of 30.71 years with a negative beta decay to the metastable barium-137. The beta energies are 0.5 MeV in this decay and 1.2 MeV. Metastable, meaning that the barium passes after 2.55 min on the emission of gamma rays with an energy of 0.662 MeV in its ground state and then is stable. With the help of model calculations and measurements can be determined that an activity of around 7000 Bq of incorporated Cs-137 results to a whole body exposure, an effective dose equivalent of about 1 mSv. The consumption of 1 kg of contaminated mushrooms from Bavaria, for example 70000 Bq would thus result in additional radiation exposure of 1 / 10 mSv = 0.1 mSv. With an average annual natural background radiation of 2.4 mSv such radiation is negligible.

@Edano the food kyodo article
ikrockhopper Itsumi Kakefuda
@
Gotcha. The news is... The Foreign Ministry changed its policy to convince the world of the safety of JP food. ..cont) because the 'cesium beef' became so infamous. Instead, they will work on information disclosur
translate.google.com

@elainekirk that's what i expected. no food becquerels anymore to the public !

@Edano it is barmy
rockhopper
, the ministry will stop saying 'JP food is safe,' bc everyone knows it not. Instead, they will disclose accurate info. ) Whether or not the Foreign Ministry has 'accurate info' about food is a completely different story ;-)

Has anyone seen this? Safecast drive to Fukushima. blog.safecast.org

@lillymunster how can they do this, what kind of morals do they have ?

@lillymunster yes they have a blummin tuff job

@lillymunster they wont get masks they have been put there to show how safe it is, they want the people to go back soon kitting the police out with masks may cause 'panic' tralalalalala

@lillymunster it won't happen the minister will have civil servants who have been there yrs, who know how good the power companies are, how much they put into gov, a minister cant do much without civil servants behind him

@dean hi

my bedtime g'night all

We were trying to sort out some numbers on METI readings. Edano did some numbers and his calculations, they didn't look insanely high. More expected due to fallout. If you have a chance to look that them and let us know what you think?

will give it a try.. where are they lilly

fukushima and miyagi it says is in calculation

interesting.. tokyo highest of all?

are these susposed to be readings taken by GOJ or people or TEPCO/

Interesting post about the Safecast crew doing a radiation detection ride through fukushima blog.safecast.org

plus the comment on attenuation

I would have to convert into something that I'm more familiar with to conclude that lilly...