Even if you evacuate in Japan, you can’t escape from the supply chain of the food.
It’s not only agricultural food to be contaminated, but also processed food is contaminated.
A citizen’s radiation measurement group “Tida” in Hamamatsu Shizuoka [Link] measured 19.71 Bq/Kg of cesium from cereal. It’s the type of food grain to eat with milk for breakfast.
The product’s name is All brown Buran Flake Plain by Kellogg’s.
40% is Japanese wheat and 60% is polished rice from US.
Cs-134 : 8.95 Bq/Kg
Cs-137 : 10.76 Bq/Kg
Total : 19.71 Bq/Kg