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Merged nuclear power safe?

r-j said:
On CNN they just said the radiation at the gates of the plant was 400 million seaverts, but that as you go away from the plant, the radiation decays and it isn't as bad.

Does it work like that? The radiation falls off with distance? Why is radioactivity dangerous then?
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Firstly it is "Sievert" secondly 400 million Sievert I would be very surprised, that would be gynormious. You probably mean 400 MICRO Sievert. As a peak it is not too bad (we all receive a few milli Sievert per year due to natural sources). As a constant dose per hours it is a bit high but not what I would call the end of the world.


ETA I see it now 100 to 400 millisivert. No mention if it is per hour or a peak flash.
 
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Updated information from the IAEA. Without the fearmongering.

Fukushima Daiichi Nuclear Power Plant Update

Radiation Dose Rates Observed at the Site

The Japanese authorities have informed the IAEA that the following radiation dose rates have been observed on site at the main gate of the Fukushima Daiichi Nuclear Power Plant.

At 00:00 UTC on 15 March a dose rate of 11.9 millisieverts (mSv) per hour was observed. Six hours later, at 06:00 UTC on 15 March a dose rate of 0.6 millisieverts (mSv) per hour was observed.

These observations indicate that the level of radioactivity has been decreasing at the site.

As reported earlier, a 400 millisieverts (mSv) per hour radiation dose observed at Fukushima Daiichi occurred between units 3 and 4. This is a high dose-level value, but it is a local value at a single location and at a certain point in time. The IAEA continues to confirm the evolution and value of this dose rate. It should be noted that because of this detected value, non-indispensible staff was evacuated from the plant, in line with the Emergency Response Plan, and that the population around the plant is already evacuated.

About 150 persons from populations around the Daiichi site have received monitoring for radiation levels. The results of measurements on some of these people have been reported and measures to decontaminate 23 of them have been taken. The IAEA will continue to monitor these developments.

Evacuation of the population from the 20 kilometre zone is continuing. The Japanese have asked that residents out to a 30 km radius to take shelter indoors. Japanese authorities have distributed iodine tablets to the evacuation centres but no decision has yet been taken on their administration.
 
Aepervius said:
Firstly it is "Sievert" secondly 400 million Sievert I would be very surprised, that would be gynormious. You probably mean 400 MICRO Sievert. As a peak it is not too bad (we all receive a few milli Sievert per year due to natural sources). As a constant dose per hours it is a bit high but not what I would call the end of the world.


ETA I see it now 100 to 400 millisivert. No mention if it is per hour or a peak flash.
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400 millisievert would be a lot though, wouldn't it? Especially if it were constant.
 
DC said:
it was one, but not one you like, .......

Ever saw children from Chernobyl?
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DC, this isn't Chernobyl. Not even close.

By the sounds of it, the radiation levels spiked at a somewhat dangerous level within the immediate vicinity of the plant and have dropped back to above-average-but-not-dangerous levels.

This isn't a major "oh noes nuclear power will kill us all!" situation, this is a "Considering the crap thrown at them, the engineers are doing a perfectly adequate job keeping the rest of Japan safe, let alone us".


Nuclear power is safe, clean and efficient.
 
MarkCorrigan said:
DC, this isn't Chernobyl. Not even close.

By the sounds of it, the radiation levels spiked at a somewhat dangerous level within the immediate vicinity of the plant and have dropped back to above-average-but-not-dangerous levels.

This isn't a major "oh noes nuclear power will kill us all!" situation, this is a "Considering the crap thrown at them, the engineers are doing a perfectly adequate job keeping the rest of Japan safe, let alone us".


Nuclear power is safe, clean and efficient.
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i know it is not a Chernobyl. so?

and how save it currently is will be reevaluated.
 
DC said:
i know it is not a Chernobyl. so?
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So why are you constantly bringing it up?
DC said:
and how save it currently is will be reevaluated.
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Not unless we get new data. As it stands, the levels have been far lower than what would be needed for a really dangerous spike, and for far shorter periods of time than would be needed to make a lower dose dangerous.

ETA: Unless you meant how safe nuclear is overall, which is even more ridiculous. What, you think most countries will have 8.8/9 earthquakes and tsunami's hitting their 40-45 year old power stations?

This station is OLD. Really really old. It's held up insanely well given the pounding it got, and newer designs will be safer still.
 
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MarkCorrigan said:
So why are you constantly bringing it up?


Not unless we get new data. As it stands, the levels have been far lower than what would be needed for a really dangerous spike, and for far shorter periods of time than would be needed to make a lower dose dangerous.
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Not what i currently am hearing from the plant.
 
DC said:
Not what i currently am hearing from the plant.
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Miss this did you?

jbjr said:
Updated information from the IAEA. Without the fearmongering.

Fukushima Daiichi Nuclear Power Plant Update

Radiation Dose Rates Observed at the Site

The Japanese authorities have informed the IAEA that the following radiation dose rates have been observed on site at the main gate of the Fukushima Daiichi Nuclear Power Plant.

At 00:00 UTC on 15 March a dose rate of 11.9 millisieverts (mSv) per hour was observed. Six hours later, at 06:00 UTC on 15 March a dose rate of 0.6 millisieverts (mSv) per hour was observed.

These observations indicate that the level of radioactivity has been decreasing at the site.

As reported earlier, a 400 millisieverts (mSv) per hour radiation dose observed at Fukushima Daiichi occurred between units 3 and 4. This is a high dose-level value, but it is a local value at a single location and at a certain point in time. The IAEA continues to confirm the evolution and value of this dose rate. It should be noted that because of this detected value, non-indispensible staff was evacuated from the plant, in line with the Emergency Response Plan, and that the population around the plant is already evacuated.

About 150 persons from populations around the Daiichi site have received monitoring for radiation levels. The results of measurements on some of these people have been reported and measures to decontaminate 23 of them have been taken. The IAEA will continue to monitor these developments.

Evacuation of the population from the 20 kilometre zone is continuing. The Japanese have asked that residents out to a 30 km radius to take shelter indoors. Japanese authorities have distributed iodine tablets to the evacuation centres but no decision has yet been taken on their administration.
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What are your sources saying DC, and what is a dangerous dose?

Hint: It's already been explained in this thread.
 
angrysoba said:
As much as I want any excuse I can find to start tentacling all the chicks in their school uniforms the woman on the video DID point out that while the radiation level had been measured at 8000 microsieverts it would take a million microsieverts to cause radiation sickness (100 Rem?). So it wasn't complete "Death Wind OF DEATH!!!1!" reporting.
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That video was linked in the main article of Dutch newspaper.
The header for the article was literally Wind of Death Heading For Tokyo.

I have colleagues here who are saying that elevated levels of radiation have already been measured in Tokyo. Grimly shaking their heads and probably expecting a massive die-off due to leukaemia or something.
They give me funny looks when I say that it isn't that bad.

Anyway, I'm going to pick op some remarkably cheap Toyota shares today.
 
MarkCorrigan said:
Nuclear power is safe, clean and efficient.
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Safe, maybe, but blowing the walls and roof off with explosive force is an unusual safety mechanism and difficult for the unscientific public to accept as nothing to worry about!

How much does the long-term safety of nuclear power depend on our advanced industrial civilization remaining stable and intact for many generations or, perhaps, for centuries?
 
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DC said:
current news....... theyr source are sources in Japan......
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Like the sources that point out that the radiation levels had, at one point, spiked at 400 milliseiverts per hour which isn't dangerous unless it persists for a considerable period of time?

Those sources?
 
MarkCorrigan said:
Like the sources that point out that the radiation levels had, at one point, spiked at 400 milliseiverts per hour which isn't dangerous unless it persists for a considerable period of time?

Those sources?
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:rolleyes: yeah i know the only ones knowing what is going on are the bigmouthed JREF phonies........ this is so laughable, the whole world is wrong, only the JREFers know what really is going on, impressive lol.
 
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