Japan Earthquake/Tsunami

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Japan Earthquake/Tsunami
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 Bahamut.Dasva
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By Bahamut.Dasva 2011-03-15 17:44:55
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Pandemonium.Spicyryan said:
Now Dasva, you can tell they are an expert when they start off a sentence with "Radiations ARE spreading".
I think it was radiation storm that got me. And oh and the lack of many letters and obvious mispellings that made it look like some 5 year old texting
 Unicorn.Tarowyn
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By Unicorn.Tarowyn 2011-03-15 17:46:57
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Bahamut.Dasva said:
Unicorn.Tarowyn said:
Oh, Dasva, just a FYI, based on watching the news yesterday, whenever they quote a radiation number it seems to be /hr.
Too bad they rarely actually use a number. Just that omg its this much more than normal or unspecified limit or amount per year etc.
Well, I've seen actual number quotes here and there, there was an actual number on the amount that reached Tokyo that I saw on the news yesterday but I don't recall it off the top of my head. Wanna say under 100 microsieverts though. I'll see if I can find any others later.
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By Bahamut.Dasva 2011-03-15 17:48:20
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Unicorn.Tarowyn said:
Bahamut.Dasva said:
Unicorn.Tarowyn said:
Oh, Dasva, just a FYI, based on watching the news yesterday, whenever they quote a radiation number it seems to be /hr.
Too bad they rarely actually use a number. Just that omg its this much more than normal or unspecified limit or amount per year etc.
Well, I've seen actual number quotes here and there, there was an actual number on the amount that reached Tokyo that I saw on the news yesterday but I don't recall it off the top of my head. Wanna say under 100 microsieverts though. I'll see if I can find any others later.
Oh yeah occasionally. But most the time it's just useless stuff.
 Caitsith.Taazy
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By Caitsith.Taazy 2011-03-15 17:52:40
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2246: Japanese news agency Kyodo reports that the storage pool in reactor four - where the spent fuel rods are kept - may be boiling. Tepco says readings are showing high levels of radiation in the building, so it is inaccessible. Radiation levels had fallen late on Tuesday but remained abnormal.
 Gilgamesh.Thedreamer
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By Gilgamesh.Thedreamer 2011-03-15 17:54:40
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Can you *** stop to masturbate and stop post faster than u think ???

Its your *** New York Times who say it:

Fire erupt

Pool Fuel-cooling could...

Quote:
If any of the spent fuel rods in the pools did indeed catch fire, nuclear experts say, the high heat would loft the radiation in clouds that would spread the radioactivity.

“It’s worse than a meltdown,” said David A. Lochbaum, a nuclear engineer at the Union of Concerned Scientists who worked as an instructor on the kinds of General Electric reactors used in Japan. “The reactor is inside thick walls, and the spent fuel of Reactors 1 and 3 is out in the open.”

Quote:
The pools, which sit on the top level of the reactor buildings and keep spent fuel submerged in water, have lost their cooling systems and the Japanese have been unable to take emergency steps because of the multiplying crises.

Experts now fear that the pool containing those rods from the fourth reactor has run dry, allowing the rods to overheat and catch fire. That could spread radioactive materials far and wide in dangerous clouds.

Quote:
The sudden turn of events, after an explosion on Monday at one reactor and then an early-morning explosion on Tuesday at yet another — the third in four days at the plant — had already made the crisis at the plant the worst nuclear accident since the Chernobyl reactor disaster a quarter-century ago. It had become impossible for workers to remain at many areas within the plant for extended periods, the agency said. Japan has requested assistance from the Nuclear Regulatory Commission and the International Atomic Energy Agency.
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By Caitsith.Neonracer 2011-03-15 17:56:18
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Now I'm being told that through acid rain, we could be getting some of the fall out from the radiation in Canada.. which would mean the US as well....
 Bahamut.Dasva
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By Bahamut.Dasva 2011-03-15 17:56:38
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Again with the hypotheticals. Run dry you say...

Caitsith.Taazy said:
Quote:
2246: Japanese news agency Kyodo reports that the storage pool in reactor four - where the spent fuel rods are kept - may be boiling. Tepco says readings are showing high levels of radiation in the building, so it is inaccessible. Radiation levels had fallen late on Tuesday but remained abnormal.
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By Seraph.Rafik 2011-03-15 17:58:50
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Possible Effects of a Catastrophic Meltdown

The 'China Syndrome' refers to a possible result of the catastrophic meltdown of a nuclear reactor. Also called a loss of coolant accident, the scenario begins when something causes the coolant level in a reactor vessel to drop, uncovering part—or all—of the fuel rod assemblies. Even if the nuclear chain reaction has been stopped through use of control rods or other devices, the fuel continues to produce significant residual heat for some time. If not properly cooled, the fuel assemblies may soften and melt, falling to the bottom of the reactor vessel. There, without neutron-absorbing control rods to prevent it, nuclear fission could resume but, in the absence of a neutron moderator, might not. Regardless, without adequate cooling, the temperature of the molten fuel could increase to the point where it melts through the structures containing it. Although many feel the radioactive slag would stop at or before the subterranean aquifer, such a series of events would release large quantities of radioactive material into the atmosphere and groundwater, potentially causing damage to the local environment's plant and animal life.
 Caitsith.Taazy
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By Caitsith.Taazy 2011-03-15 18:00:28
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2249: Officials at the plant say the new fire broke out because the initial blaze had not been extinguished, AP reports.
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By Gilgamesh.Thedreamer 2011-03-15 18:09:21
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Another USA link since it look like frenchs are "HELP I AM TRAPPED IN 2006 PLEASE SEND A TIME MACHINE" w

Time

Quote:
Would a spent fuel fire be worse than a meltdown of the reactor core?

Pick your poison. Fresh fuel is hotter and more radioactive, but is only one fuel assembly. A pool of spent fuel will have dozens of assemblies. One report from Sankei News said that there are over 700 fuel assemblies stored in one pool at Fukushima. If they all caught fire, radioactive particles—including those lasting for as long as a decade—would be released into the air and eventually contaminate the land or, worse, be inhaled by people. "To me, the spent fuel is scarier. All those spent fuel assemblies are still extremely radioactive," Dalnoki

NHK (japanese channel) just said radiation around Fukushima 1 is around 300-400 millisevierts, dose recommended in a YEAR is 1, nuclear worker can't go beyond 20!.
(at 6000 you die in a month, its Tchernobyl record)
Cesium 137 who's already leackin take 30 years for lower radioactivity.

What we see actually with pool have only been think as a Terrosist way to make worst damage to a nuclear facility, it have never been SEEN.
 Caitsith.Taazy
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By Caitsith.Taazy 2011-03-15 18:39:21
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2334: Meanwhile the Tokyo Electric Power Company has said an estimated 70% of the nuclear fuel rods inside reactor 1 at Fukushima Daiichi have been damaged, along with 33% of the rods inside reactor 2, the Kyodo news agency reports. The reactors' cores are believed to have melted partially when their cooling systems malfunctioned
 Lakshmi.Jaerik
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By Lakshmi.Jaerik 2011-03-15 18:52:59
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Gilgamesh.Thedreamer said:
NHK (japanese channel) just said radiation around Fukushima 1 is around 300-400 millisevierts, dose recommended in a YEAR is 1, nuclear worker can't go beyond 20!.
(at 6000 you die in a month, its Tchernobyl record)
Cesium 137 who's already leackin take 30 years for lower radioactivity.
Um, the dosage you're quoting is 1... serviert. Not milliservierts. You're off by a factor of 1,000.

In the case of Tokyo's numbers, which are in the micro range, you're off by a factor of 1,000,000.
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 Caitsith.Taazy
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By Caitsith.Taazy 2011-03-15 19:01:53
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2341: The official death toll from Friday's earthquake has risen to 3,373, police tell NHK television. In Miyagi prefecture, 1,619 deaths have been confirmed, and 2,011 people remain unaccounted for. In the town of Minamisanriku, about 1,000 bodies have been discovered. Another 8,000 people, or nearly half the town's population, are missing. Police have found several hundred bodies on the beaches of the Oshika peninsula. Iwate prefecture has 1,193 confirmed deaths, including 373 deaths from the cities of Rikuzentakata and Ofunato. Fukushima prefecture has meanwhile reported 506. More than 7,000 people remain unaccounted for
 Caitsith.Taazy
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By Caitsith.Taazy 2011-03-15 19:10:23
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Quote:
2359: Back to the ongoing crisis at the Fukushima Daiichi nuclear plant: the Kyodo news agency reports that engineers are spraying boric acid to prevent "recriticality" - presumably, the resumption of a self-sustaining nuclear chain reaction - at reactor 4.
 
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 Bahamut.Dasva
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By Bahamut.Dasva 2011-03-15 19:24:15
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Lakshmi.Jaerik said:
Gilgamesh.Thedreamer said:
NHK (japanese channel) just said radiation around Fukushima 1 is around 300-400 millisevierts, dose recommended in a YEAR is 1, nuclear worker can't go beyond 20!. (at 6000 you die in a month, its Tchernobyl record) Cesium 137 who's already leackin take 30 years for lower radioactivity.
Um, the dosage you're quoting is 1... serviert. Not milliservierts. You're off by a factor of 1,000.

In the case of Tokyo's numbers, which are in the micro range, you're off by a factor of 1,000,000.
All this SV talk... in america we use rem!

And yeah that definitely has to be mili. I mean operationally on a decently clean plant not doing anything crazy or going into the RC much got more like 4-5mSv year. And navy has much lower limits than OSHA and such. Oh and I've definitely hung around peices of pipes and such that even on a shutdown reactor put out more than 400mSV/hr. I may have enough seen people teabag said components...

CS-137 has a halflife of 30 years. But that doesn't really factor in it spread and diluting with everything else out there.
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By Caitsith.Taazy 2011-03-15 19:27:01
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0003: A new fire that broke out inside reactor 4 at the Fukushima Daaichi nuclear plant, which was damaged in Friday's earthquake and tsunami, appears to be out. This was the second time in two days that the reactor where spent nuclear rods were being kept caught fire. Workers at the plant are pumping sea-water through several of the plant's reactors in an effort to cool and stabilise them. Japanese media reports say radiation levels at the reactors remain too high for workers there to approach them. Japan's Prime Minister, Naoto Kan, and the International Atomic Energy Agency (IAEA) have expressed concern and called for the provision of more timely, and accurate information.
 Gilgamesh.Thedreamer
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By Gilgamesh.Thedreamer 2011-03-15 20:02:43
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Canadian source: drawin about Radiations and Msv on wealth and actual japan situation (in red).

and now ? -.-
 Lakshmi.Jaerik
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By Lakshmi.Jaerik 2011-03-15 20:09:19
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The article backs up my point.

The peak radiation measured at the plant itself is undeniably high and worth worrying about, especially if it stays at 400 mSv/hr. While not an immediate health issue, it would be potentially bad for any workers spending a significant amount of time within the reactor building if they didn't have adequate radiation protection. Which they have.

But there are no citizens within 20km of that plant anymore and haven't been for days. There is no appreciable measurable amount of radiation in Tokyo. And your "worse case scenario" comparisons to Chernobyl and implication that hundreds of thousands or millions of people are a hair's breadth away from instant death is shockingly irresponsible. I'm removing you from the thread.
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 Quetzalcoatl.Zeldageek
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By Quetzalcoatl.Zeldageek 2011-03-15 20:10:12
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Now what? 400 is not that much.
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By Quetzalcoatl.Zeldageek 2011-03-15 20:11:19
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Lakshmi.Jaerik said:
The article backs up my point.

The peak radiation measured at the plant itself is undeniably high and worth worrying about, especially if it stays at 400 mSv/hr. While not an immediate health issue, it would be potentially bad for any workers spending a significant amount of time within the reactor building if they didn't have adequate radiation protection. Which they have.

But there are no citizens within 20km of that plant anymore and haven't been for days. There is no appreciable measurable amount of radiation in Tokyo. And your "worse case scenario" comparisons to Chernobyl and implication that hundreds of thousands or millions of people are a hair's breadth away from instant death is shockingly irresponsible. I'm removing you from the thread.

yeah remember that parts of Chernobyl pumped out up to 300,000 mSv/hr during the fire.
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By Ramuh.Urial 2011-03-15 20:13:30
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Quetzalcoatl.Zeldageek said:
Lakshmi.Jaerik said:
The article backs up my point.

The peak radiation measured at the plant itself is undeniably high and worth worrying about, especially if it stays at 400 mSv/hr. While not an immediate health issue, it would be potentially bad for any workers spending a significant amount of time within the reactor building if they didn't have adequate radiation protection. Which they have.

But there are no citizens within 20km of that plant anymore and haven't been for days. There is no appreciable measurable amount of radiation in Tokyo. And your "worse case scenario" comparisons to Chernobyl and implication that hundreds of thousands or millions of people are a hair's breadth away from instant death is shockingly irresponsible. I'm removing you from the thread.

yeah remember that parts of Chernobyl pumped out up to 300,000 mSv/hr during the fire.
containment is another factor...400 in one area vs the amount Chernobyl was putting into the air via the fire
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By Quetzalcoatl.Zeldageek 2011-03-15 20:15:06
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Ramuh.Urial said:
Quetzalcoatl.Zeldageek said:
Lakshmi.Jaerik said:
The article backs up my point.

The peak radiation measured at the plant itself is undeniably high and worth worrying about, especially if it stays at 400 mSv/hr. While not an immediate health issue, it would be potentially bad for any workers spending a significant amount of time within the reactor building if they didn't have adequate radiation protection. Which they have.

But there are no citizens within 20km of that plant anymore and haven't been for days. There is no appreciable measurable amount of radiation in Tokyo. And your "worse case scenario" comparisons to Chernobyl and implication that hundreds of thousands or millions of people are a hair's breadth away from instant death is shockingly irresponsible. I'm removing you from the thread.

yeah remember that parts of Chernobyl pumped out up to 300,000 mSv/hr during the fire.
containment is another factor...400 in one area vs the amount Chernobyl was putting into the air via the fire
Oh yeah, I'm sure the reactors are putting out some crazy mSv an hour in Japan too, but it's all contained in the core.
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By Caitsith.Taazy 2011-03-15 21:01:10
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0146 : Tepco says the reactor 3 at Fukushima Daiichi nuclear power plant has been emitting white smoke for about 45 minutes, Kyodo News reports. The plant's reactor 4 was the one where a fire broke out earlier this morning, Tepco said.
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By Seraph.Rafik 2011-03-15 21:05:56
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Caitsith.Taazy said:
Quote:
0146 : Tepco says the reactor 3 at Fukushima Daiichi nuclear power plant has been emitting white smoke for about 45 minutes, Kyodo News reports. The plant's reactor 4 was the one where a fire broke out earlier this morning, Tepco said.


The smoke from reactor 3 is full of Mox.
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 Caitsith.Taazy
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By Caitsith.Taazy 2011-03-15 21:17:06
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0208 : South Korea says it will send some 50 tonnes of its boron reserves to Japan after a request from Tokyo, Reuters reports. The metalloid is vital for stopping fission nuclear reactions in nuclear reactors.
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By Caitsith.Taazy 2011-03-15 21:17:33
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0211 : The Daily Yomiuri tweets: "Tokyo Electric officials say the white smoke being reported at the Fukushima No1 nuclear plant could possibly be steam."
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By Caitsith.Taazy 2011-03-15 21:26:15
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0221: Japanese Cabinet Secretary Yukio Edano says the authorities are still looking for the cause of white smoke billowing from reactor 3 at Fukushima Daiichi nuclear power plant. He says the radiation reading at the plant is fluctuating by the hour.
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By Lakshmi.Jaerik 2011-03-15 21:30:43
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My biggest frustration is the media implying that the Japanese government and/or Tokyo Electric is trying to withhold information or make it seem less serious than it is.

There are Twitter campaigns in Japanese, trying to get members of the government and the utility company to go to bed. Some hadn't slept in three days, and continue to give updates on the situation every few hours. Some, like chief cabinet secretary Yukui Edano worked themselves until they become completely incoherent from sleep dep.

Yes, they will hold a news conference where they say "things appear under control, no need to worry right now." Then there's an explosion and they immediately go "hey, explosion, could be bad, let's move everyone out just in case and get back to you as the situation changes."

That's not being "inconsistent" for the point of being misleading. It's being "inconsistent" because the situation is changing every hour and so far, officials in both the government and utility company have been pretty damn quick in reporting on it to the best of their ability. Honestly, I don't know what more people expect.

By comparison, when Katrina hit in the US, we got one "Heckuva job, Brownie" comment from the President followed by a near total information blackout for days.
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