[Iodine-131 detection in school lunch] Obihiro city, “Iodine-131 was mistakenly detected, possibly it’s Pb-214”

Following up this article..”“Iodine-131″ detected from various school lunch ingredients from North Kanto area” [URL]

Having the detection data widely reported, on 7/1/2013 Obihiro city board of education announced on their website to state Iodine-131 was mistakenly detected.

They stated probably because the ventilation of the analysis room was not properly operated, the radioactive noble gas Rn-222 was attached to the equipment and the descendant nuclide Pb-214 was mis-detected to be I-131 up to 17.32 Bq/kg, according to the analyzing equipment maker.

They have already changed all the I-131 readings of June to be “Not detected”. They plan to change the I-131 readings in the date of May soon as they finish analyzing as well.





Don’t let them dominate the truth just because they have money.


Français :

[Iode  131 relevé dans des repas scolaires] La ville d’Obihiro : “L’iode 131 a été détecté par erreur, c’est sans doute du plomb 214”


Article lié : De l’iode 131 dans divers ingrédients issus de la région nord-Kanto et relevé dans des repas scolaires d’Hokkaido

Après que ses détections aient été largement reprises, le 1er juillet 2013 le bureau de l’éducation de la ville de Obihiro déclare sur son site que l’iode 131 a été détecté par erreur.

Ils affirment que c’est probablement parce que la ventilation de la pièce des analyses n’a pas fonctionné correctement, du radon 222, un gaz rare, présent dans l’appareillage et son nucléide fils , le plomb 214 ont été identifiés par erreur en tant qu’iode 131 et jusqu’à 17,32 Bq/kg, selon le fabriquant de l’appareillage.
Ils ont déjà corrigé tous les relevés d’iode 131 de juin en “Non détecté”. Ils prévoient aussi de changer les relevés d’iode 131 de mai dès qu’ils en finissent les analyses.


Ne les laissez pas dominer la vérité juste parce qu’ils sont riches.

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.