Technical Briefing on the Radiological Situation in Japan

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Presentation transcript:

Technical Briefing on the Radiological Situation in Japan 19th March 2011

Gamma-dose rate in microSv/h in various Prefectures

Gamma dose rates

Information provided by MEXT

Gamma dose rates near Tokai and Tokyo

Gamma-dose rate at Togichi, 140 km South West (microSv/h) Passage of the radioactive plume Resulting exposure pathways are External exposure from the cloud Inhalation of contaminated air during the passage of the plume Background 14 March 15 March 16 March 17 March

IAEA Environmental Measurements in Japan 19 March 2011 at public locations

Recent IAEA Environmental Measurements in Japan 19 March 2011 at selected locations Location: Hasuda (Saitama Prefecture), 25 km from Tokyo Dose rate: 0.04 microSv/h Gross alpha count: 0 cps Gross beta and gamma count: 127 cps Location: Tamikochi (Saitama Prefecture), 110 km from Tokyo Dose rate: 0.18 microSv/h Gross alpha count: 0.2 cps Gross beta and gamma count: 240 cps Location: Nasugogem (Saitama Prefecture), 170 km from Tokyo Dose rate: 2.9 microSv/h Gross beta and gamma count: 2300 cps

Locations