200,000,000,000,000 becquerels/kg in fuel rod materials found near Tokyo… “the material spread globally” — Composed “major part” of worst Fukushima plume — Persists for long time in living organisms — Must reconsider disaster’s health effectsPresentation by Yasuhito Igarashi of Japan’s Meteorological Research Institute at IAEA’s expert meeting (pdf), Characteristics of Spherical Cs-Bearing Particles Collected during the Early Stage of FDNPP Accident, February 2014: […] We have found spherical Cs-bearing particles (Cs-ball) from HV filter samples collected during Mar. 14-15, 2011, when the first radioactive plume arrived from the FDNPP accident at the MRI [Meteorological Research Institute] as well as Univ. Tsukuba, Japan. […] experiments showed that the Cs-ball occupied major part in the Mar. 14-15 Fukushima plume. They would persist for a long time in the environment as well as in living organisms. […] the investigation on radioactive aerosol during the second plume arrival gave no such Cs-ball. […] The finding should be a key to understand the processes of the FDNPP accident, to accurately evaluate the health and environmental impacts and to improve efficiency of the decontamination of the polluted area. […] Further studies are recommended for the present Cs-ball in more detail!
- Particle 5: 0.2 TBq/g (200 trillion Bq/kg)
- Additional research on spherical particles: Nuclear fuel found 15 miles from Tokyo suburbs — Fukushima uranium in ‘glassy’ spheres transported over 170 km