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Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
Radiological Monitoring and Consequences
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Radiological Monitoring and Consequences

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Fukushima Nuclear Accident …

Fukushima Nuclear Accident

7 April 2011

Published in: News & Politics
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  • 1. Fukushima Nuclear Accident
    Radiological Monitoring
    and Consequences
    7 April 2011
  • 2. Gamma Dose Rates ( microSievert /hour) 14 March – 6 April
    Natural Background: 0.1 microSv/hour
  • 3. Gamma Dose Rate in 47 Prefectures - 6 April
    Natural background: 0.1µSv/h
    Fukushima prefecture: 2.4 µSv/h
  • 4. Daily deposition of iodine-131 (Becquerel /m2)25 March to 5 April
  • 5. Daily deposition of cesium-137 (Becquerel /m2)25 March to 5 April
  • 6. Monitoring of drinking water7 April
    Iodine-131 and cesium-137 well below restriction levels in all prefectures
    Recommendations for restrictions based on iodine-131 remains in place in 1 village of Fukushima prefecture as precautionary measure
  • 7. IAEA measurements - Route DDose rate (µSv/h)
  • 8. Food Restrictions
    As of 4 April, food restrictions (distribution and/or consumption) were in place
     Fukushima : leafy and flower-headed brassicas
    (broccoli, cauliflower)
     Ibaraki : unprocessed raw milk, parsley, spinach and kakina
     Tochigi and Gunma: spinach and kakina
    Chiba : spinach (KatoriCity and TakoTown)
    spinach and parsley (Asahi City)
  • 9. Radiation Monitoring in FoodstuffsReported 6 April by JAPAN (MHLW)
    • (Fukushima prefecture) From26 of 41 samples for various vegetables, spinach and other leafy vegetables
    - I-131, Cs-134, Cs-137 exceeded the regulation
    values set by the Japanese authorities.
    • (8 prefectures) From 52 of 78 samples for various vegetables, fruit (strawberry) and unprocessed raw
    milk
    - I-131, Cs-134, Cs-137 were either not detected
    or well below the regulation values set by the
    Japanese authorities
  • 10. Collaboration between IAEA and CTBTO
    CTBTO provided to IAEA access to the data of its monitoring stations world-wide
    WMO provided to IAEA a forecast of the movement of air masses in regional and global scale
    IAEA, in collaboration with CTBTO and WMO estimated global distribution of radioactivity released
  • 11. International Monitoring Data submitted to IAEA
    The following countries have submitted data on radioactivity in air:
    Austria, Belgium, Bulgaria, Canada, China, Finland, France, Greece, Iran, Ireland, Italy, Malaysia, Poland, Romania, Russian Federation, Spain, Sweden, Switzerland, and Ukraine
    All levels are very low

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