If its been tested, then fine.
Just because its from Fukushima doesn’t mean it was near the plant. Prefectures are pretty big.
Exactly.
Its like asking if you would drink water from in the vicinity of a fracking operation.
There are various versions of maps of Japan showing where radiation fallou8t has been detected. I’ll use sone of Japan’s official (gov) maps.
Note that these maps tend to report Cesium but there are several other contaminants there as well (e.g., Strontium) so these maps report a fraction (tested) of the contaminants present.
http://ex-skf.blogspot.com/2011/09/radiation-map-by-ministry-of-education.html