Citizen’s lab”Average contamination of food samples in Nagano was 154 Bq/Kg, highest in Japan, 150% of safety limit”

According to CRMS(Citizens’Radioactivity Measurement Station), the average contamination of food samples was the highest in Nagano prefecture. Nagano is in central Japan, about 260km from Fukushima nuclear plant.

Since 7. 2011, they have been analyzing 6,886 food samples.

The result revealed that the average of Cs-134/137 from the 20 samples in Nagano was 154.67 Bq/Kg, which is the highest in Japan.

It means the average reading of food contamination is even higher than the official safety limit (100 Bq/Kg) by 55 Bq/Kg.

The second highest average reading was 93.87 Bq/Kg in Miyagi. The average reading of Fukushima was 51.26 Bq/Kg. Unexpectedly this is only the third highest reading in Japan.

CRMS didn’t announce if the samples were locally produced or manufactured somewhere else.

Citizen's lab"Average contamination of food samples in Nagano was 154 Bq/Kg, highest in Japan, 150% of safety limit"



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Français :

[CRMS] Le labo privé : La contamination moyenne des aliments de Nagano est de 154 Bq/Kg, record du Japon, à 150 % de la limite de sécurité


Selon le CRMS (Citizens’Radioactivity Measurement Station), le record de radioactivité moyenne des aliments échantillonnés est dans la préfecture de Nagano. Nagano est au centre du Japon, à environ 260 km de la centrale de Fukushima.

Ils ont analysé 6 886 échantillons d’aliments depuis juillet 2011.
Les résultats ont révélé que la moyenne en Cs 134/137 des 20 échantillons de Nagano est de 154,67 Bq/kg, ce qui est le record pour le Japon.
Ça signifie que la moyenne des relevés de radioactivité des aliments est bien supérieure à la limite de sécurité officielle (100 Bq/kg), de 55 Bq/kg.

La seconde moyenne record des relevés est de 93,87 Bq/kg pour le Miyagi. La moyenne de Fukushima est de 51,26 Bq/kg. De façon inattendue, elle est seulement la troisième au “podium”.
Le CRMS ne précise pas si les échantillons sont de production locale ou ont été manufacturés ailleurs.

Citizen's lab"Average contamination of food samples in Nagano was 154 Bq/Kg, highest in Japan, 150% of safety limit"

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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.


May 2013