Fukushima Intenal radiation exposure: First Thesis

"Findings suggest that the level of internal radiation exposure brought about by pollution from the soil within the Fukushima Prefecture is much less than originally believed. The amount is so negligible that it is difficult to imagine there being any risk to the health."

 

https://www.jstage.jst.go.jp/article/pjab/89/4/89_PJA8904B-01/_pdf