MEXT showed the contamination level lower than actual by 20%

 

Ministry of Education, Culture, Sports, Science and Technology admitted their monitoring data of sea water and sea ground around Fukushima plants were shown lower than actual by 20% at maximum and published the correct data on 4/16/2012.
The manipulated data was from March to August.

MEXT explains it was only cesium 134 that they miscalculated, which is because cesium 134 doesn’t produce only gamma ray, it takes time to analyze it accurately. They state, “It was an emergency, it was more important to analyze more samples than analyzing accurately. ”
文部科学省は4/16、去年の3月から8月の間の福島第一原発周辺の海水、および海底の汚染データが最大20%実際よりも低く算出されていたことを認め、修正したデータを公表しました。
文部科学省の説明では、実際よりも低く算出されていたのはセシウム134で、これは同時に複数の放射線を出すため、分析に時間がかかるためにそのことを考慮しなかったのが原因だと述べています。緊急時なので、正確性を期すよりもより多くの試料を分析することの方が重要だったと説明しています。

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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.

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