Radiation near Tokyo spiked to 100,000,000 times normal after Fukushima — “Intensive contamination” hit Tokyo area… “Extremely high” levels detected — Info about radioactive contamination hidden from public

Published: November 16th, 2017 at 8:05 am ET
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PLOS, Nov 14, 2017 (emphasis added): Radioactive contamination in the Tokyo metropolitan area in the early stage of the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident and its fluctuation over five years

  • The activity and inventory of radioactive material in the eastern part of Tokyo tended to be high… The radioactive plume with high 131I activity spread into the Tokyo metropolitan area
  • Almost no public information about the radioactive contamination in the Tokyo metropolitan area and Kanto district had been shared
  • The plume containing a large amount of radioactive material drifted into the Tokyo metropolitan area… where over 30 million residents live… [Publications] include almost no discussion of the fact that radioactive materials were carried into the Tokyo metropolitan area…
  • The contamination level was extremely high in a roadside ditch sludge in Kashiwa City…
  • The quantity of 134+137Cs deposited in the region studied was estimated… from values measured in the soil, it was estimated as 5.35 TBq
  • High activities and inventories of the radionuclides were found in eastern Tokyo and northern Chiba… The contamination was even higher in the adjoining northern part of Chiba located east of Tokyo…
  • The results reveal that the Tokyo metropolitan area even now continues to be affected by radioactive contamination caused by the FDNPP accident…
Gordon Edwards, Ph.D, nuclear expert, 2017 (pdf): Intensive contamination extends over 200 km south – right down to the outskirts of Tokyo

IRSN, 2016 (pdf): Fukushima-Daiichi Accident: Main contamination events… Event of 14-16 March – This event is marked by turning winds and by a rainfall that generated significant contamination of the Japanese territory. On the evening of the 14th of March, a first radioactive plume was transported by winds towards the southwest… and reached the Tokyo area. At Tsukuba, 153 Bq/m3** were measured…

** 153 Bq/m3 = 153,000,000 uBq/m3 Cs-137 in Tsukuba after Fukushima vs. 1.2 uBq/m3 Cs-137 in Tsukuba before Fukushima (source) = 127,500,000 times higher Cs-137 after Fukushima

See also: Contamination in Tokyo suburb 3 times higher than area 1 mile from Fukushima Daiichi — Nuclear Scientist: Significant contamination in Tokyo, a serious problem (AUDIO) 

Published: November 16th, 2017 at 8:05 am ET
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186 comments

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