Radioactivity spikes in No. 1 reactor well water


Tokyo Electric Power Co. said there has been a sharp spike in the radioactivity of water samples taken from an observation well built by the sea at the crippled Fukushima No. 1 nuclear power plant.

The samples, collected from the well on Monday, contained a record 251,000 becquerels of radioactive cesium per liter — 3.7 times the amount recorded in a sample collected last Thursday.

The observation well, located to the east of the damaged No. 2 reactor, is one of several installed close to the seawall in the plant’s port. Monday’s reading was the highest recorded in water samples from any of the wells.

The samples also contained 7.8 million becquerels per liter of radioactive beta particle-emitting substances, such as strontium-90, an almost fourfold increase from Thursday’s level.

The amount of gamma ray-emitting substances, such as cobalt-60 and manganese-54, included in the samples was also at a record high.

The well is positioned close to an underground trench by the sea that is connected to the No. 2 reactor building.

Speaking at a press conference on Tuesday, Tepco official Isao Shirai told reporters that the increased radioactivity in the water could be due to higher levels of groundwater caused by recent typhoons mixing with radioactive elements left in the soil after the triple reactor meltdowns at the plant.

  • rossdorn

    Of course something like that, and in future more of it, is to be expected.
    Do not expect to hear about anything like that on NHK news.

    There seem to be at least two melted cores there, now, that stuff is not going to stop decaying for several thousand years, this will go on, and radiation and its consequences will get bigger and bigger.
    There is no technical solution for this mess at present! So, remember, no one ever even gotten close enough to this real problem of the molten cores, to even know what this mess looks like. What to say about what to do about it…. Not even science fiction has come up with any idea, how to handle a melted core.

    But none of that is of course a reason for any japanese government not to switch some more of this miracles of japanese engineermanship back online, and some really wise commentators in this forum to applaud it….

  • Starviking

    We’ve seen 9,300,000 gross-beta on the 8th of July from groundwater observation hole 1-2. No spikes in the enclosed harbour, nor the breakwater, nor the sea since then.

    The barriers seem to be working.

  • rossdorn

    Oh thank god… one worry less….

    Tepco would never lie to the people of Japan.

    • Starviking

      If TEPCO would lie, like perhaps the Asahi Shimbun did/does, then they would be caught out in the end. However, if they are liars, then why bother reporting these spikes to the public?

      • rossdorn

        Jesus… I wish could live on your planet…

      • Starviking

        No really, if TEPCO are liars, then why do they report these spikes?