(ZT) UPDATE AS OF 11:20 A.M. EDT, FRIDAY, MARCH 18:
Reactors 1, 2 and 3 at the Fukushima Daiichi nuclear power plant are in stable condition, with workers continuing to provide seawater cooling into the reactors. Containment integrity is believed to be intact on reactors 1, 2 and 3, and containment building pressures are elevated but are within design limits.
Site radiation doses have been decreasing since March 16. Radiation dose rates are fluctuating based on some of the relief operations, such as adding cooling water to the used fuel pools. Recent readings at the plant boundary are about 2 millirem per hour. Radiation dose rates at reactor 3 range between 2,500 and 5,000 millirem per hour.
The Japanese Self-Defense Force restarted cooling water spray into the Unit 3 reactor building and spent fuel pool at around 1 a.m. EDT on March 18. Plans are to spray 50 tons of water on the reactor 3 reactor building/spent fuel pool using seven fire-fighting trucks.
A diesel generator is supplying power to reactors 5 and 6. TEPCO is installing high voltage cables from a nearby transmission line to reactors 1 and 2. Once electricity supply is re-established, priority will be given to restoring power to reactor heat removal systems and cooling water pumps. Workers are seeking to install electrical cables to reactors 3 and 4 components in about two days.
Fukushima Daini
All four reactors at Fukushima Daini remain shut down with normal cooling being maintained using residual heat removal systems.
Daiichi Accident Rated 5 on International Event Scale
New International Nuclear and Radiological Event Scale (INES) ratings have been issued for the accident at the Fukushima Daiichi and Daini nuclear power plants, the International Atomic Energy Agency said.
Reactor core damage at the Daiichi reactors 2 and 3 caused by a loss of cooling function has resulted in a rating of 5 on the seven-point scale.
The loss of cooling and water supply functions in the spent fuel pool of reactor 4 was rated a 3, or "serious" incident. The loss of cooling functions in the reactors 1, 2 and 4 of the Fukushima Daini nuclear power plant has led to a rating of 3.
The rating for the Chernobyl accident was 7, or a "major accident" on the INES scale. The Three Mile Island accident was 5, or an "accident with wider consequences." For more information on INES, see the IAEA's website and this IAEA leaflet.
僅供參考UPDATE AS OF 11:20 A.M. EDT, FRIDAY, MARCH 18:
所有跟帖:
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雖然對人體還沒害,但“extremely trace amount” of radiation were detected in
-金筆-
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03/18/2011 postreply
21:05:04
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你還應該知道,灌進去的水都會被汙染,然後那些水蒸氣帶著放射性就到大氣層去了。。。
-金筆-
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03/18/2011 postreply
21:07:56
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哎,上麵那條消息是到今天早上的信息而已,誰說沒事啦?你看不懂啊?
-看客2010-
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03/18/2011 postreply
23:21:21
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日本超市裏為什麽沒有食品可賣?因為也是被日人家庭囤積了,現在食品裏也發現放射物了
-金筆-
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03/19/2011 postreply
10:35:10
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得了吧,國人不都像你那樣糊塗哈:))
-看客2010-
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03/19/2011 postreply
12:31:42
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老金啊,我們都生活在有放射性物質中,至於是否達到損害身體程度,是很專業的問題,不可做文學類的誇張。
-大度讀人-
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03/19/2011 postreply
02:20:29
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所以沒事,去日本旅遊去吧,哈哈。你一方麵反對建造核電站,一麵又說沒事,一致點嘛
-金筆-
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03/19/2011 postreply
10:37:04
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我坐飛機從東京到紐約一趟相當於我現在在東京裸奔166天,我怕什麽?(東京0.050微西弗/小時,10小時飛機200微西弗/次)
-大度讀人-
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03/20/2011 postreply
02:50:29
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我什麽時候發表過“反對建造核電站”的觀點?怎麽都用無中生有的詭辯方式啊???!!!
-大度讀人-
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03/20/2011 postreply
03:37:21