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Japan:One thermometer high at Fukushima No.2 reactor

Monday, February 6, 2012

Laaska News  Feb. 6, 2012

The operator of the Fukushima Daiichi nuclear power plant says one of the thermometers in the damaged No.2 reactor has been indicating a rise in temperature.

Tokyo Electric Power Company says one of the 3 thermometers at the bottom of the reactor read 71.7 degrees Celsius as of 4 PM on Sunday, as compared to about 45 on January 27th.

The temperature rose about 25 degrees in about 10 days.

TEPCO has rearranged water pipes in a bid to cool the reactor more efficiently.

The company says 2 other thermometers, also placed at the bottom of the reactors, have been reading about 45 degrees.

TEPCO notes the injection of cooling water was partially suspended when plumbing work was conducted on January 26th.

It says the procedure may have changed the way the water circulated inside the reactor, possibly preventing the system from sufficiently cooling down the nuclear fuel.

TEPCO adds it does not know exactly why only one thermometer is showing higher temperatures.

The company plans to monitor the situation, while examining the possibility of increasing the volume of cooling water if temperatures continue to rise.

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Govt to measure radiation levels in no-fly zone

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Japan’s government will measure radiation levels around the troubled Fukushima Daiichi nuclear plant as a step toward revising the no-fly zone over the site.

No aircraft has been allowed to fly within a 20-kilometer radius of the plant since the nuclear accident.

The government says it will revise the no-fly zone as it confirmed in December that the nuclear reactors have now reached a state of cold shutdown.

Starting Monday and continuing for several days, helicopters flying at an altitude of about 300 meters will collect air samples around the plant to measure radiation levels.

There are no specific standards on radiation levels for the designation of no-fly zones. The government plans to revise its earlier decision based on data collected during the flights.

NHK.
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