Saturday, March 19, 2011

Fukushima update - March 19

NISA-TEPCO conference - Fukushima 1 nuclear power plant - summary
Reactor 6: 2nd generator providing power, now used for cooling
Reactor 5: coolant pump now working with power connected
Reactor 4: no update
Reactor 3: water dousing continuing - fire trucks chained together, allowing 7 hours of unmanned water cannoning.
Reactor 2: power planned to be restored by the end of today.
Reactor 1: no update

Note: Much of the equipment for power supply is soaked in sea water from the tsunami, so there may be delays as equipment is fixed.

Radiation at the plant: 18 March 8:10am at the west gate of Fukushima 1: 830.8 μSv/h at 8:10am; high; lowering to 364.5 μSv at 9pm. NISA is evaluating new current data.
Note: World Health Organisation reported: No radiation risk outside evacuation zone

Weather is changeable at the moment, rain to arrive tomorrow. One of the sites I follow shows wind directions and forecasts for different altitudes: WeatherForecast.com for Fukushima. '
(NHK) 19th March: wind is blowing from south to north, changing to blowing east to west in the evening. 20th March: rain, with a wind blowing from the south-east to the north-west.

Fukushima prefecture government is now regularly updating their advice bulletins covering utilities, transport and radiation monitoring (PDFs). Bulletins in English, Japanese, Chinese
  • Radiation monitoring: 10am March 19 (English: 89th air report, 85th air report, water report)
    Summary:
    • Water readings of iodine-131 continue to decrease (well under safe levels).
    • Air readings are stable: Iitate 20 microseiverts / hr; Fukushima city 10; Koriyama, Shirakawa and Minami soma around 2.2; Tokiwa, Funehiki, Iwaki and Fukushima airport about 1; Aizu Wakamatsu 0.5; Minami Aizu 0.09

      Stomach xray: 600 microseiverts / hr

      Fukushima prefectural advice - stay inside as much as possible. All readings are well under safe levels.
  • Bus information, Shinjuku/Koriyama bus info
  • Airport information

  • An ex-JET from Fukushima is also keeping track of and disseminating information in Fukushima prefecture.
  • I'm using the following radiation monitoring sites:
    Official press releases from nuclear agencies around the world:
    Earthquakes: the aftershocks are slowing -- quakes older than 7 days are dropping off the USGS map (seemed to peak at about 550).
    People I follow on twitter: @makiwi has been fantastic - live translating press conferences, @iaeaorg, @norishikata, @kenmogi, @mutantfroginc
    TEPCO also has a twitter account now: Japanese, English via Google Translate.
    Twitter lists followed by various media outlets: TheTokyoPost, Wall Street Journal.
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