Fukushima Radiological Monitoring and Consequences - 12 April 2011
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Fukushima Radiological Monitoring and Consequences - 12 April 2011

Fukushima Radiological Monitoring and Consequences - 12 April 2011

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Fukushima Radiological Monitoring and Consequences - 12 April 2011 Presentation Transcript

  • 1. Fukushima Nuclear AccidentRadiological Monitoring and Consequences 12 April 2011
  • 2. Gamma Dose Rate in 7 Prefectures 24 March – 12 April
  • 3. Gamma Dose Rate in 47 Prefectures on 11 April Fukushima prefecture: 2.1 µSv/h Natural background: 0.1µSv/h
  • 4. Daily deposition of I-131 (Bq /m2) 1 to 11 April
  • 5. Daily deposition of Cs-137 (Bq /m2) 1 to 11 April
  • 6. IAEA measurements Route A: North to North West from F-NPP Gamma dose rate (µSv/h) 10 Tsuruha - Soma Tsuruha - Kashima Kawachi - SomaDose Rate (µSv/h) Entry point to Soma city Onami 5 0 25.03.2011 29.03.2011 09.04.2011 IAEA
  • 7. IAEA measurements Route A: North to North West from F-NPP Beta + gamma contamination (MBq/m2) 1.5 Tsuruha - Soma Tsuruha - Kashima Kawachi - SomaBeta+gamma contamination Entry point to Soma city Onami 1 (MBq/m2) 0.5 0 25.03.2011 29.03.2011 09.04.2011 IAEA
  • 8. Monitoring of drinking water 12 April•I-131 and Cs-137 are far below restriction levelsin all prefectures•Recommendations for restrictions for infantsbased on I-131 in place in 1 village ofFukushima prefecture as precautionary measure
  • 9. Radiation Monitoring in Foodstuffs (MHLW, Japan)• 8th and 10-11 April• 21 samples• 8 prefectures• Various vegetables, spinach and other leafy vegetables, fruit (strawberry), various meats, seafood and unprocessed raw milk• I-131, Cs-134 and/or Cs-137: • either not detected • Or below the regulation values set by the Japanese authorities