102.5 Bq/Kg of Cs-134/137 from Sayama green tea leaves for sale

102.5 Bq/Kg of Cs-134/137 from Sayama green tea leaves for sale

A citizens’ radiation measuring station reported they detected Cs-134/137 over 100 Bq/Kg from green tea leaves for sale.

The safety limit of food is 100 Bq/Kg. However, the Ministry of Agriculture, Forestry and Fisheries determined the safety limit of green tea to be 10 Bq/Kg in tea water instead of tea leaves. Therefore even if over 100 Bq/Kg of Cs-134/137 is measured from tea leaves, it can be legally sold if they don’t measure over 10 Bq/Kg of Cs-134/137 from the tea water made from the tea leaves.


Sample : Sayama tea leaves for sale

Origin : Saitama prefecture

Measuring date : March 2013

Cs-134 : 37.3 Bq/Kg

Cs-137 : 65.2 Bq/Kg

Total : 102.5 Bq/Kg






Truth can be told only by someone who can judge himself.
You might be a listener or a speaker. Either way, some words sound reassuring for you, look comfortable for you. However, it doesn’t guarantee that the words are telling the truth.


Français :

102,5 Bq/kg de Cs 134/137 dans des feuilles de thé vert de Sayama à la vente


102,5 Bq/kg de Cs 134/137 dans des feuilles de thé vert de Sayama à la vente

Une station civile de surveillance de la radioactivité rapporte qu’ils ont relevé du Césium 134/137 au-dessus de 100 Bq/kg dans des feuilles de thé en vente.
La limite de sécurité est à 100 Bq/kg pour les aliments. Or, le Ministère de l’Agriculture, de la Forêt et de la Pêche a fixé cette limite à 10 Bq/kg du thé vert dans le thé liquide plutôt que dans les feuilles de thé. Donc, même si on relève plus de 100 Bq/kg de Cs 134/137 dans les feuilles de thé, il peut légalement être vendu s’ils ne relèvent pas plus de 10 Bq/kg de Cs-134/137 dans le thé qu’ils font à partir de ces feuilles.

Échantillon : feuilles de thé de Sayama à la vente
Origine : Préfecture de Saitama
Date : Mars 2013
Cs-134 : 37,3 Bq/kg
Cs-137 : 65,2 Bq/kg
Total : 102,5 Bq/kg


La vérité ne peut être dite que par qui peut en juger.
Que l’on soit orateur ou spectateur, dans tous les cas certains mots peuvent vous rassurer, vous être agréables. Il n’est cependant pas garanti que ces mots vous disent la vérité.

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.


June 2013