According to this story.
The total is over 3 times the annual limit, in just 2 months, while Americans typically get 6.2 millisieverts per year from natural background radiation, air travel, and medical diagnostic scans.
Levels of radiation in the air in Fukushima have declined steadily, but concentrations of radiation in soil and water have contaminated food which residents are urged to avoid.
Residents of Iitate and Kawamata had their food and urine tested in the study.