CRIIRAD's video: O2 Fukushima prefecture OGUNI area of Date city June 2012

This film shows gamma radiation measurements performed by a scientist from CRIIRAD laboratory (B. Chareyron), during a mission to Oguni area of Date City in June 2012, more than one year after the Fukushima Daiichi nuclear disaster. Oguni area (see point O on the map) is located about 10 km east of the city of Fukushima and 55 km north-west away from the damaged nuclear reactors. This mission has been performed with a team from CRMS (M. Wataru Iwata and M. Kanno). The device is a gamma radiation scintillometer whose results are given in counts per second (c/s). A gamma radiation rate of 3 000 c/s monitored 1 meter above ground is equivalent to 1.48 µSv/h (microSievert per hour). Due to high gamma radiation rates all over the area, including inside houses (0.3 to 0.7 µSv/h inside this particular house) most of the people living there are exposed to annual doses above 1 milliSievert. According to ICRP risk coefficients, a dose of 1 milliSievert corresponds to 17 cancers for each 100 000 exposed persons. For additional information look at www.criirad.org and www.crms-jpn.com The CRIIRAD mission to Japan (June 2012) and the scientific work associated have been made possible using CRIIRAD NGO internal resources (including the donations of CRIIRAD members) and a grant from Conseil Régional Rhône Alpes (CPO 2012-P6) Si vous avez des questions, merci d'adresser un mail à : contact@criirad.org