Food monitoring in Japan has been ongoing from a variety of sources including the national government, local governments and citizen groups. We have listed below some of the known reporters of food contamination. If you know of one we should add please let us know.
Japan Ministry of Health food, water & soil radiation testing (in English) with extensive reporting
Chiba Prefecture Radiation Testing (in Japanese but translates well with Google Translate)
Security Tokyo does some food testing including US imports to Japan. In Japanese but translates well. They have found contamination in US produced foods.
ACRO – French NGO branch in Japan does food testing. In English
CRMS – Japan citizen group doing a variety of testing including food. In Japanese, translates well with Google Translate.
CRMS now has some information in English http://en.crms-jpn.com/
December 2012 Wildlife in Fukushima found contaminated over food limits: Bear, boar, pheasant & ducks http://www.simplyinfo.org/?p=8611
List of embargoed food from Ministry of Health includes many freshwater fish Dec2012EmbargoedFoods
Tested wildlife in Tohoku Emergency_monitoring_test_results_in_English
Same in Japanese DecWildGame2012_2r9852000002qlmg
Ministry statement about contaminated wildlife and rivers MiyagiBearBoar
US Food Testing (Some food in US has been found to be contaminated, mostly at lower levels): Eden Foods – Eden Traditional Japanese Foods Nuclear Radiation Food Safety and Related Concerns Vital Choice Fish Pass the Test with Flying Colors VitalChoice_Radiation Tests – Sept