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Fukushima radiation in sea - study

2011-11-17 11:28

Tokyo - Most of the radioactive fallout from the disaster at the Fukushima nuclear plant dropped into the ocean and began circling the planet, Japanese researchers said on Thursday.

Up to 80% of the caesium released by the Fukushima Daiichi power plant landed in the Pacific and made its way into other oceans around the world, scientists at the Meteorological Research Institute said.

"The rest has fallen on land" in and around Fukushima, said Hiroshi Takahashi, a researcher at the institute in Ibaraki, northeast of Tokyo.

"The results mean the ocean was more contaminated than land, although recent data have shown that ocean pollution resulting from the accident was well below levels affecting humans," Takahashi said.

Researchers say the radioactive materials, including caesium-137, an isotope with a half-life of more than 30 years, were widely dispersed when they entered the oceans and each particle would measure less than one micrometre - one seventh the size of a human red blood cell.

No threat


Using computer simulations, they calculate the material was first blown northeast over eastern Russia and Alaska, before falling into the Pacific and reaching the western coast of the mainland US around March 17, Takahashi said.

The materials were believed to have completed their first around-the-globe trip by March 24, he said, adding that the results would be presented to an academic meeting in Nagoya, central Japan.

Several previous studies, including one produced in France in October, have concluded the fallout had been hugely diluted by ocean currents and, except for near-shore species, posed no discernible threat.

Japan has been on alert for the impact of radiation since an earthquake and resulting tsunami struck the northeast of the country on March 11, crippling the Fukushima Daiichi nuclear power plant.

Its cooling systems were knocked offline and reactors were sent into meltdown, resulting in the leaking of radiation into the air, oceans and food chain.

Comments
  • ludlowdj - 2011-11-17 12:54

    Outright lies and misdirection by world bodies being happily circulated by media. Fukushima, released more radioactive material into the atmosphere than the Chernobyl and long island nuclear accidents together, the direct provable impact of Chernobyl alone was recorded at 980 000 people directly affected. in the weeks after Chernobyl radioactive readings higher than the safety limit were recorded across most of Europe and the US. In the first weeks after Fukushima radioactive readings in New York alone were in the region of 400 times the maximum safety level. but as usual the sheeple will buy into the lie and accept as normal the fact that they start to glow in the dark.

  • Albert.Williams93 - 2011-11-17 16:13

    "ocean pollution resulting from the accident was well below levels affecting humans" Don't you just love it when they ignore the things living in the ocean? :P

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