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[Various] Japan Nuclear Emergency - Continuous Coverage of Damage and Radiation Risks - Page 23  

post #221 of 2836
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OP updated:

Edit 1631 GMT: Japan nuclear agency rates nuclear plant accident in Fukushima at 4 on 0-7 international scale. More information on that figure: The 1986 Chernobyl disaster was rated 7 on the International Nuclear Event Scale; the 1979 Three Mile Island accident was rated 5. The rating of 4 for the Fukushima plant incident comes from an as yet unidentified official at Japan's nuclear safety agency, news wires report.

Edit 1651 GMT: Japanese government confirms that military and civilian units specializing in decontamination have arrived in the exclusion zone. Government also confirms that emergency backup plan to cool the reactor using sea water is underway. The operation is expected to take 36 to 48 hours.
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post #222 of 2836
Quote:
Originally Posted by Argorn5757 View Post
even so, considering how old this Japanese reactor is it is handling it remarkably well. if this had happened to any of the old soviet RBMKs there would be no more russia.
However, Chornobyl didn't fail because of any regular usage, but rather, that they disabled all of the safety systems and drove the reactor to 150% in a "test". Of course, with a postive temprature coefficient reactor, it went up once the reaction got carried away and the graphite blocks caught fire. RBMK reactors, properly operated with safety systems in place, have actually been operated safely for decades.

The Japanese reactors would have had many significant upgrades, and they were working on four reactors on that site. The reactor didn't fail, but rather, the backup diesel generators that power the cooling pumps in an emergency failed after the tsunami, and the delay was only because they have backup batteries that ran out of charge 8 hours in.

This is remarkable safety and design, considering that the natural gas power plant in Connecticut a few years ago went up like crazy and killed all kinds of people...
post #223 of 2836
hmm, I'm not too worried, just because the containment was destroyed, doesn't mean the plant is 10 minutes to melt down. also, i think the "maximum allowed radiation" is a bit lower then what a full grown adult can really handle, small children might have problems though, IF the levels they are quoting actually reach us, that is...

Quote:
Originally Posted by EvanPitts View Post
However, Chornobyl didn't fail because of any regular usage, but rather, that they disabled all of the safety systems and drove the reactor to 150% in a "test". Of course, with a postive temprature coefficient reactor, it went up once the reaction got carried away and the graphite blocks caught fire. RBMK reactors, properly operated with safety systems in place, have actually been operated safely for decades.

The Japanese reactors would have had many significant upgrades, and they were working on four reactors on that site. The reactor didn't fail, but rather, the backup diesel generators that power the cooling pumps in an emergency failed after the tsunami, and the delay was only because they have backup batteries that ran out of charge 8 hours in.

This is remarkable safety and design, considering that the natural gas power plant in Connecticut a few years ago went up like crazy and killed all kinds of people...
I think because of all the nuclear accidents in the past people are scared of modern plants more then they need to be, Though its probably the lasting damage that scares people the most(though the nastiest material doesn't stick around too long). a normal plant blows up, kills a few dozen people... sad, but i think its happened enough times in the past that people don't **** themselves when they hear about it. a NUCLEAR plant blows up? just the thought of radiation spreading across the globe is scary(and rightfully so) but people need to realize the sun blasts the planet with radiation every day, our bodies DO have experience in dealing with radiation. You guys have seen too many movies, these are NOT nuclear bombs(which are DESIGNED to kill people) these are devices that are designed to NOT kill people.
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post #224 of 2836
Hmm... worrying times. Should be OK in the UK though.
post #225 of 2836
Quote:
Originally Posted by OP
Edit 1631 GMT: Japan nuclear agency rates nuclear plant accident in Fukushima at 4 on 0-7 international scale. More information on that figure: The 1986 Chernobyl disaster was rated 7 on the International Nuclear Event Scale; the 1979 Three Mile Island accident was rated 5. The rating of 4 for the Fukushima plant incident comes from an as yet unidentified official at Japan's nuclear safety agency, news wires report.
Told you. Nothing to freak out about. Whenever people hear the word "nuclear" they assume the world is over. If this was an oil power station the same would have happened.
post #226 of 2836
Quote:
Originally Posted by 98uk View Post
Hmm... worrying times. Should be OK in the UK though.
err... no, it will effect the entire planet like chernobyl did.
any radiation exposure is dangerous and there is no "safe limit", every radio active partical has the potential to damage a human cell and cause mutation its just that the more radiation you are exposed to the greater the risk of mutation. also of course large doses of it do have immediate effects, this is largely due to ionisation.
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post #227 of 2836
Quote:
Originally Posted by jy360 View Post
err... no, it will effect the entire planet like chernobyl did.
any radiation exposure is dangerous and there is no "safe limit", every radio active partical has the potential to damage a human cell and cause mutation its just that the more radiation you are exposed to the greater the risk of mutation. also of course large doses of it do have immediate effects.
Where does it say anywhere that the entire world is going to be covered in radiation and cause us all to grow 3rd arms? I'm pretty sure i'm going to wake up like normal for the next few weeks.
post #228 of 2836
Quote:
Originally Posted by 98uk View Post
Where does it say anywhere that the entire world is going to be covered in radiation and cause us all to grow 3rd arms? I'm pretty sure i'm going to wake up like normal for the next few weeks.
no the whole growing extra limbs thing is really a myth. when I say mutation I mean in the cancer form
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post #229 of 2836
Quote:
Originally Posted by jy360 View Post
no the whole growing extra lims thing is really a myth. when I say mutation I mean in the cancer form
I think it was fairly obvious I was over exaggerating. But, I don't think the whole world (let alone the UK) will be effected by this, not in a physical sense at least.
post #230 of 2836
Quote:
Originally Posted by 98uk View Post
I think it was fairly obvious I was over exaggerating. But, I don't think the whole world (let alone the UK) will be effected by this, not in a physical sense at least.
well when chernobyl happened radiation levels increased by something like 35% in the UK due to fallout.
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