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Fukushima - Radiological Implications on Human Health, 25 March 2011
 

Fukushima - Radiological Implications on Human Health, 25 March 2011

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    Fukushima - Radiological Implications on Human Health, 25 March 2011 Fukushima - Radiological Implications on Human Health, 25 March 2011 Presentation Transcript

    • Fukushima Nuclear Accident
      Radiological Implications on Human Health
      25 March 2011
    • Gamma Dose Rates in microSievert per hour 15-24 March
      Background: 0.1 microSv/hour
    • Deposition of I-131 and Cs-13723 to 24 March
      Monitored by Japanese authority
      47 Prefectures
      Additional deposition detected in 7 prefectures
      I-131: 42 to 16000 Bq/m2
      Cs-137: 42 to 210 Bq/m2
      I-131 Rate of deposition is decreasing (21 to 24 March)
      [Tokyo: 320003600013000]
    • IAEA radiation monitoring team 25/03/11
      Radius 34 to 62 km for NPP measurement of :
      Contamination: 0.07 to 0.96 MBq/ m2
      Dose rate: 0.73 to 8.8 microSv/ hour (background: 0.1 microSv/ hour)
      Lower than yesterday
    • Radioactivity in food and milk
      Radionuclides abovelevels recommended by the Japanese authorities:
      I-131 in 5 raw milk samples (Fukushima Prefecture)
      I-131 in 1 vegetable sample in Ibaraki Prefecture.
      Cs-137 in vegetable sample in Ibaraki Prefecture
    • Drinking water
      Analysis from 47 prefectures
      Levels belowthe levels (both adult and children) recommended by the Japanese authorities.
    • Japanese authority measures for food, milk and drinking water
      Restrictions on the distribution of:
      milkin 2prefectures (Fukushima, Ibaraki)
      certain vegetables in 4 prefectures (Fukushima, Ibaraki, Tochigi, Gunma).
      Requested sampling of agricultural products in 6 neighbouring prefectures (Miyagi, Yamagata, Saitama, Chiba, Niigata and Nagano).
    • 3 workers affected by radiation
      3 workers exposed: 173-180 milliSv
      2 of these 3 workers: Feet exposed to contaminated water
      Dose permissible for emergency workers in life saving operation: 250 milliSv
    • IAEA monitoring team
      NS Team
      Team 1: In the field since last week
      Team 2: Started yesterday
      NA Team
      IAEA/FAO assessment missionleft today
      (Food, Environment, soil and water)