Fukushima Nuclear Accident<br />Radiological Monitoring <br />and Consequences<br />19 April 2011<br />
Gamma Dose Rates in 7 Prefectures24 March – 18 April<br />Natural Background: 0.1 µSv/h<br />
Gamma Dose Rate in 47 Prefectures  on  18 April<br />Fukushima prefecture: 1.9 µSv/h <br />
Daily deposition of I-131 (Bq /m2)1 to 18 April <br />
Daily deposition of Cs-137 (Bq/m2)1 to 18 April<br />
IAEA measurements <br />Route D: West of the F-NPP<br />Gamma dose rate (µSv/h) from 23 March to 18 April<br />
IAEA measurements  <br />Route D: West F-NPP<br />Beta + gamma contamination (MBq/m2) <br />
Monitoring of Radioactivity in FoodstuffsReported on 18 April by MHLW<br />23 samples<br /><ul><li>April 8,15, 17and 18
8 prefectures (Chiba, Fukushima, Gunma, Hokkaido, Ibaraki, Niigata, Saitama and Yamagata).
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Radiological Monitoring and Consequences - 19 April 2011

  1. 1. Fukushima Nuclear Accident<br />Radiological Monitoring <br />and Consequences<br />19 April 2011<br />
  2. 2. Gamma Dose Rates in 7 Prefectures24 March – 18 April<br />Natural Background: 0.1 µSv/h<br />
  3. 3. Gamma Dose Rate in 47 Prefectures on 18 April<br />Fukushima prefecture: 1.9 µSv/h <br />
  4. 4. Daily deposition of I-131 (Bq /m2)1 to 18 April <br />
  5. 5. Daily deposition of Cs-137 (Bq/m2)1 to 18 April<br />
  6. 6. IAEA measurements <br />Route D: West of the F-NPP<br />Gamma dose rate (µSv/h) from 23 March to 18 April<br />
  7. 7. IAEA measurements <br />Route D: West F-NPP<br />Beta + gamma contamination (MBq/m2) <br />
  8. 8. Monitoring of Radioactivity in FoodstuffsReported on 18 April by MHLW<br />23 samples<br /><ul><li>April 8,15, 17and 18
  9. 9. 8 prefectures (Chiba, Fukushima, Gunma, Hokkaido, Ibaraki, Niigata, Saitama and Yamagata).
  10. 10. Analytical results for:
  11. 11. various vegetables and leafy vegetables (8 samples)
  12. 12. shiitake mushrooms (4),
  13. 13. a fruit (strawberry),
  14. 14. a fish (salmon) and
  15. 15. unprocessed raw milk (9)
  16. 16. I-131, Cs-134 and/or Cs-137 were either not detected or were belowthe regulation values set by the Japanese authorities. </li></li></ul><li>Monitoring of drinking water19 April<br />I-131 and Cs-137 are far below restriction levels in all prefectures <br />Recommendations for restrictions for infants based on I-131 in place in 1 village of Fukushima prefecture as precautionary measure <br />
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