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

2. Gamma-dose rate in microSv/h in various Prefectures

3. Gamma dose rates

4. Information provided by MEXT

5. Gamma dose rates near Tokai and Tokyo

6. 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

7. IAEA Environmental Measurements in Japan 19 March 2011 at public locations

8. 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

9. Locations