BBC: 4,000 Bq/m3 of cesium detected in OCEAN water at least 30 km from Fukushima coast

Published: February 23rd, 2012 at 4:49 pm ET
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Title: ‘Harmless’ radiation found off Japanese coast
Source: Fish Info & Services (FIS)
Author: Natalia Real
Date: Feb 24, 2012

[...] Radioactivity readings in the seawater across the track ranged from less than 3 Bq per m3 up to 4,000 Bq per m3.

The maximum of these readings is about 1,000 times what could be measured in the water under normal conditions but they were about one-tenth the levels generally considered harmful, [WHOI marine chemist Ken Buesseler] noted, AP reports.

The cruise did not find these highest detections in areas sampled closest to Fukushima because swirling ocean currents formed concentrations of the radioactive compounds. At the same time, the researchers were not permitted any closer than 30km to the coast. [...]

Read the report here

Title: Cruise finds Fukushima pollution
Source: BBC News
Author: Jonathan Amos, Science correspondent
Date: Feb 22, 2012

[...] Analysis revealed elevated levels of radioactive elements that could be tied directly to releases from the nuclear power station.

These included caesium-137 and caesium-134. Radioactivity readings in the seawater across the track ranged from less than three becquerels per cubic metre up to 4,000 becquerels per cubic metre.

The maximum of these readings is about a thousand times what could be measured in the water prior to the nuclear accident.

Interestingly, the cruise found these highest detections were not in areas sampled closest to Fukushima. [...]

Read the report here

Published: February 23rd, 2012 at 4:49 pm ET
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9 comments to BBC: 4,000 Bq/m3 of cesium detected in OCEAN water at least 30 km from Fukushima coast

  • dosdos dosdos

    "…. one-tenth the levels generally considered harmful…"

    By which scale?


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  • Laterlukemayb Laterlukemayb

    In other matters relating to radioactive materials like, centrifuges, nuclear weapons development, yellow cake, nuclear facilities, rogue regimes trying to develop nuke weapons. Wherever this blasted table is they keep talking about (All options on the table, No options off the table), someone needs to please find it and destroy the stupid thing!


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  • One tenth the levels generally considered harmful sounds better then one thousand times the level usually found. If the fish swimming in water containing one thousand times normal levels of radio-active isotopes are being eaten by tuna and salmon I wonder what the bio accumulated levels would be? Easy to say safe levels of sea water. Who drinks sea water? No one. Who eats fish? Everyone in Japan.


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  • arclight arclight

    Interestingly, the cruise found these highest detections were not in areas sampled closest to Fukushima

    so they are going to concrete over the seabed around daichi fukushima for no reason??

    the bbc is full of shit!! enenews rocks!!


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  • Well Arclight, they can't get closer then 30 km to shore. So who knows what its like say a mile out or what its like in the harbour servicing the plant. What it shows is the pattern of dispersal is not "the further away the less" model. I'm sure someone knows how radiation is disbursed in the sea with so many nuclear subs and such being owned by Russian US and others. There have been public and most likely secret accidents. The Navy doesn't ever have to divulge anything, they cite national security issues. I'm off my seafood just lately……


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  • Ok, how much radiation is in the ocean, at 3 – 4000 bq/cu meter, plus the higher radiation from the plume released early on?

    How many cubic meters are in the ocean?

    How many of those cubic meters are contaminated with this radiation?

    What figure would one use; 3, or 4000, 4 Million or something in between?

    There is contamination both from the water running off of Fukushima, and from the air releases, explosions and continual radiation releases and leaks to this day..

    Is anyone analyzing any of this and trying to come up with a realistic number?

    (Long silence, nervous throat clearing)

    I thought not…

    Just checking in to make sure that everyone still agrees, that NO ONE wants to know this, so we are not going to try and figure it out.

    Nothing to see here.. move on… keep smiling


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