Over 100,000 Bq/Kg of Cs-134/137 still detected in a park of Chiba

101,000 Bq/Kg of Cs-134/137 was measured from the soil of a park in Chiba. A citizen’s organization “PLANET ROCK” analyzed and reported this October.

The location is “Shin-Matsudo central park” in Matsudo city, Chiba. This area is known as one of the worst hot spots in Kanto area.


The specific sample was collected beside the toilet of the park. From the other side of the toilet, they also measured 93,400 Bq/Kg of Cs-134/137.

They analyzed the soil samples taken from 7 locations in the park, but all of them exceeded the food safety limit of 100 Bq/Kg.







Français :

On a toujours plus de 100 000 Bq/kg de Cs 134/137 dans un parc de Chiba


101 000 Bq/kg de Cs 134/137 ont été relevés dans le sol d’un parc de Chiba. “PLANET ROCK”, une organisation privée, a fait et publié les analyses en ce mois d’octobre.
C’est dans le “parc central de Shin-Matsudo” de la ville de Matsudo, dans Chiba. Cette région est connue pour être un des pires points chauds de la région de Kanto.

L’échantillon spécifique a été collecté à côté des toilettes publiques du parc. De l’autre côté des toilettes, ils ont relevé 93 400 Bq/kg de Cs 134/137.
Ils ont analysé des échantillons de sol en 7 endroits dans le parc et tous dépassent la limite de sécurité alimentaire de 100 Bq/kg.


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.


October 2014