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Reactors
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UPDATE, 4:30 pm Tuesday, Japan’s NHK TV is reporting that a plant worker at Fukushima Daiichi says that radiation levels inside the reactors buildings of Units 1-3 are “immeasurable”—so high that their radiation monitors have been rendered useless. The report states that levels of 10 rems/hour have been measured even outside the buildings.
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UPDATE, 11:00 am, Tuesday, The Los Angeles Times is reporting that radioactive Iodine-131 has been measured in seawater near Fukushima at 7.5 million times the legal limit. Perhaps even more worrisome is that radioactive Cesium-137 has been measured at more than 1 million times the limit. The Cesium is likely to lodge in sediment in the region and remain a factor for marine life and fishing for perhaps centuries.
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UPDATE, 10:30 am, Monday, Japan’s government has acknowledged the obvious: that it will be months before the Fukushima nuclear crisis can be considered under control, and likely there will continue to be radiation releases for an extended period.
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UPDATE 12:45 pm, Friday, Urgent international sign-on petition sponsored by 168 Japanese organizations to expand Fukushima evacuation zone and take other necessary measures to protect the people of Japan. Sign here.
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UPDATE, 11:30 am, Friday, New video shows that Unit 4 fuel pool is exposed to the air and contains little or no water. Nuclear engineer Arnie Gunderson of Fairewinds Associates explains the video and its implications.
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UPDATE, 10:00 am, Thursday, The International Atomic Energy Agency has reported that levels of Cesium-137 in areas outside the emergency evacuation zone (especially near Iitate Village, 40 kilometers—24 miles away) are more than twice as high than levels the Soviets established for relocation from the Chernobyl area. The IAEA said cesium levels are up to 3.7 megabecquerels per square meter (MBq/sq. m) in that area. Soviet guidelines required relocation when Cesium levels reached 1.48 MBq/sq. m. This is adding to pressure on the Japanese government to expand the evacuation zone.
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Rep. Ed Markey introduces new nuclear safety bill calling for moratorium on new reactor licensing and license renewals until safety lessons of Fukushima are implemented. Markey statement and text of bill.
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UPDATE, 3:30 pm, Tuesday, The Guardian (U.K.) is reporting that “Richard Lahey, who was head of safety research for boiling-water reactors at General Electric when the company installed the units at Fukushima, told the Guardian workers at the site appeared to have "lost the race" to save the reactor, but said there was no danger…
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