For the month of November 2011, one pre-schooler in Koriyama City in the high-radiation "Nakadori" region in Fukushima Prefecture was found with 0.66 millisievert of external radiation exposure. The maximum number for the pregnant women was 0.36 millisievert.
On an annualized basis, 7.92 millisieverts from external radiation alone for the particular child, and 4.32 millisieverts for the pregnant woman. The average for the children was 0.11 millisievert, which would be 1.32 millisievert in one year. The average for the pregnant women was 0.10 millisievert, which would be 1.20 millisievert in one year.
Just a friendly reminder: Before the Fukushima I Nuke Plant accident, the natural "external" radiation exposure average in Japan was 0.59 millisievert per year.
Another reminder: Koriyama City started fitting the children and pregnant women with glass badges starting November 2011. There is no way of knowing what the radiation exposure may have been in the earlier months.
Yomiuri Shinbun (1/6/2012):
Koriyama City in Fukushima Prefecture announced the result of cumulative radiation exposure in the month of November 2011 for the pre-school children and pregnant women in the city. One child was found with 0.66 millisievert of radiation exposure, which would be 7.92 millisieverts for the annual cumulative exposure, a relatively high figure.
The city says "It is not the level that immediately affect health, but we want to continue to monitor."
The average figure for the pre-schoolers was 0.11 millisievert, and for the pregnant women 0.10 millisievert. The maximum number for the pregnant women was 0.36 millisievert.
The city distributed 16,400 glass badges to children in the city's nursery schools and kindergartens and to people who wanted to be fitted with the badges. The cumulative radiation exposure for the month of November was recorded, and the city collected the badges back from 896 pregnant women and 15,239 pre-schoolers.