Fukushima-Related Radioactive Materials Measured Across Entire Northern Hemisphere

Iitate, Fukushima Prefecture, Japan, 27 March 2011. Greenpeace radiation safety experts Jan Van de Putte and Jacob Namminga monitor contamination levels at Iitate village, 40km northwest of the crisis-stricken Fukushima/Daiichi nuclear plant, and 20km beyond the official evacuation zone. Radiation levels found by the Greenpeace monitoring team are far above internationally recommended limits – people living here would receive the yearly maximum dose of radioactivity within a few days, yet have not yet been evacuated. Captions and Photo source: ©© Christian Åslund / Greenpeace


Since the double disaster of the 9.0 magnitude earthquake and tsunami that affected hundreds of thousands of people and seriously damaged the Fukushima Daichi power plant in Japan on 11 March 2011, minute traces of radioactive emissions from Fukushima have spread across the entire Northern Hemisphere. A monitoring network designed to detect signs of nuclear explosions picked up these traces from the stricken power plant.

To date, more than 30 radionuclide stations that are part of the International Monitoring System (IMS) have provided information on the spread of radioactive particles and noble gases from the Fukushima accident…

Read Full Article, Science Daily

Paucity of Data Heightens Japan’s Nuclear Crisis, New York Times
The paucity of data and the conflicting estimates of what the available information really means have prompted a series of confusing analyses and a rift between officials in Japan and those overseas.

Radiological Assessment of Effects from Fukushima Daiichi Nuclear Plant, Maps and Slides Show, by National Nuclear Safety Administration
The U.S. Department of Energy released data recorded from its Aerial Monitoring System as well as ground detectors deployed. The information has also been shared with the government of Japan as part of the United States’ ongoing efforts to support Japan with the recovery and response effort.