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In Fukushima city, home to 300,000 people, playgrounds are eerily quiet while children play indoors, one layer removed from the dangers of the atomic plant 60 kilometres (40 miles) away on the tsunami-ravaged coast. Most schools have banned children from playing football or baseball on outdoor fields or splashing around in swimming pools exposed to the sky. The windows of classrooms remain shut despite a summer heat wave. More than 300 children have left the city's elementary and junior high schools since April, says the education board in Fukushima, where town workers have been washing down the walls of school buildings.
Japan's radiation limit was raised from 1.0 to 20 millisieverts per year after Japan's worst quake on record triggered a tsunami that slammed into the Fukushima plant, triggering a series of meltdowns and explosions.
A Packbot--a robot that measures radiation levels--that TEPCO sent to the second floor of the No. 1 reactor building detected a radiation level of 5 sieverts at a third location near the pipe that was used to vent steam from the containment vessel.
The U.S. Nuclear Regulatory Commission (NRC) in conjunction with Sandia National Laboratories has been working on a report to update and revise estimates of the number of people that would be killed or harmed as a result of a nuclear core meltdown at a plant in the United States. While currently still unavailable to the public, a copy of the report was obtained by the Union for Concerned Scientists, under the Freedom of Information Act; the group then gave a copy to the New York Times, which then ran a story on its findings. In the report, a work in progress over the past six years, the research team finds that previous estimates of the number of deaths likely to occur due to a meltdown, to be much higher than new evidence suggests; this because they believe the amount of cesium 137 released would be far less than was last estimated by the agency. After much study, the report suggests that only 1 to 2 percent of the cesium 137 in a reactor’s core would escape in a meltdown, as opposed to previous estimates of up to 60 percent.
This finding has led the researchers to believe that rather than 1 person in 167 (within a ten mile radius) likely developing a latent cancer over time, the number should be more like 1 in 4,348; and 1 in 6,250 for those within fifty miles, rather than 1 in 2,128.
After the work, we activated the facility at 3:30 pm and restarted operation of the water treatment system at 4:13 pm. When we adjusted the flow rate of the system at 6:55 pm, a pump of the decontamination instruments was stopped and the whole water treatment system was shut down. We confirmed soundness of the pump and reactivated the system at 8:30 pm, and operation of the water treatment system was restarted at 8:50 pm. -At 2:12 am on August 5, a process alarm was activated and the water treatment system was shut down. At 4:03 am, the system was reactivated and the operation was restated at 4:21 am. -Around 7 pm on 8:04, we discovered water leakage from a flange of transfer hose of filtered water which is used to clean up salt in a vessel of the cesium adsorption instruments in the site bunker building. -At 10:00 am on August 5, we started water transfer of low level radioactive water from the outside temporary tank to the Mega-float.
TEPCO Puts Off Trial Run of New Equipment at Fukushima N-Plant
Tokyo, Aug. 5 (Jiji Press)--Tokyo Electric Power Co. said Friday that it has postponed a trial run of new equipment for a system to treat highly radioactive water at its crippled Fukushima No. 1 nuclear power plant. The test operation, initially slated for Saturday and Sunday, is now planned to be conducted in mid-August, TEPCO officials said. The company made the decision as it prioritizes work to decontaminate radioactive water at a building at a waste disposal facility at the plant, which was damaged by the March 11 earthquake and tsunami. The entire water treatment system needs to be suspended when the test operation is conducted. TEPCO also said that a leak of water totaling 700 liters was discovered Thursday evening inside another building at the waste disposal facility. But the leak was stopped later, and the water did not spill out of the building, the company said. (2011/08/05-15:34)
"...are the same levels as that of measured fallouts in Japan in the cases of previous nuclear tests in the atmosphere. However, this can be considered to be caused by the nuclear accident at this time."
At around 9:30 am on April 2, 2011, we detected water containing radiation dose over 1,000 mSv/h in the pit* where power supply cables are stored near the intake channel of Unit 2. Furthermore, there was a crack of about 20 cm length on the concrete lateral of the pit, from where the water in the pit was flowing out to the ocean. At around 12:20 pm on April 2, we reaffirmed the event at the scene. We have implemented sampling of the water in the pit of Unit 2, together with the seawater in front of the bar screen near the pit of Unit 2. These samples were sent to Fukushima Daini Nuclear Power Station for analyses.
On August 3, 2011, we conducted sampling of the seawater near the intake canal of Units 1 to 4...
And we analyzed Strontium in the seawater sampled on July 11. As a result, Strontium-89 and 90 were detected as described in the attachment. Accordingly, today we have summarized the results and reported them to NISA and the government of Fukushima Prefecture.
Also we analyzed Strontium in the seawater sampled on July 14, 2011, and total alpha and total beta rays in the seawater sampled on June 13 and 14, and as a result Strontium-89, 90 and total beta rays were detected as described in the attachment.
In the aftermath of the March 11 earthquake, underground volcanic activity spiked at 20 volcanoes throughout the country, including below Mt. Yakedake straddling Nagano and Gifu prefectures, Mt. Hakone on the border of Kanagawa and Shizuoka prefectures and Mt. Aso in Kumamoto Prefecture. Earthquakes that can be sensed by humans also occurred.
Mt. Fuji erupted 49 days after the Hoei Earthquake of 1707. A simulation conducted by Fujita showed that if a spherically shaped magma chamber with a radius of three kilometers existed 18 kilometers underground, movements in faults near the chamber would change its shape, squeezing out magma.
Originally posted by ren1999
There is also a continuous low barely audible roar. It sounds like car traffic, though there are no cars outside this late at night.
In the aftermath of the March 11 earthquake, underground volcanic activity spiked at 20 volcanoes throughout the country, including below Mt. Yakedake straddling Nagano and Gifu prefectures, Mt. Hakone on the border of Kanagawa and Shizuoka prefectures and Mt. Aso in Kumamoto Prefecture.
Earthquakes that can be sensed by humans also occurred.
Commenting on the cause of this phenomenon, the Meteorological Agency said: "Magma chambers below the volcanoes were shaken by seismic waves, causing gases in magma to create magma bubbles. This resulted in earthquake swarms."
He has researched how the gravitational pressure from rocks around the magma chamber of Mt. Fuji changed in the aftermath of the March 11 earthquake compared with that before the disaster.
But Fujita assumes that the deformation would not be enough to create significant movement of magma.
I believe this shuddering under me is the movement and burning of lava deep in the ground. Most can't feel it unless they get on their bellies. Then they can feel the rippling quite distinctly. There is also a continuous low barely audible roar. It sounds like car traffic, though there are no cars outside this late at night.
The visit has made Japanese officials nervous as lethal hotspots were detected at the crippled nuclear plant this week, with radiation so high that it would kill a person within weeks if they were exposed to it for one hour. A food safety crisis is widening, with beef shipments banned from four regions over the past two weeks after meat was found to be contaminated with cesium that rained onto the hay that the animals were fed.