Japan's nuclear crisis at maximum 7 rating

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Japan's crisis has no direct impact in S'pore

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Japan's nuclear crisis at maximum 7 rating

Postby Daddy D » Wed Mar 30, 2011 10:16 am

http://www-ns.iaea.org/tech-areas/emergency/ines.asp
INES = International Nuclear and Radiological Event Scale
"INES is a tool for promptly communicating to the public in consistent terms the safety significance of reported nuclear and radiological incidents and accidents..."

Image

http://en.wikipedia.org/wiki/Fukushima_ ... _accidents
"On 18 March, Japanese officials designated the magnitude of the danger at reactors 1, 2 and 3 at level 5...

http://www.greenpeace.org/usa/en/media- ... le-rating/
"radioactivity...released between March 11 and March 23 have been so high that the Fukushima crisis already equates to three INES 7 incidents.."

So what is the real rating? And what's the implication? Chernobyl was Level 7 back then...imagine 3 times of Chernobyl? Mainly cos' the scale is to measure 1 reactor at a time only.
Last edited by Daddy D on Wed Apr 13, 2011 9:36 am, edited 2 times in total.

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Postby Daddy D » Wed Mar 30, 2011 10:33 am

http://www-news.iaea.org/news/topics/de ... rtBy=SDate

IAEA's last update on 18th March... a bit out-dated right?
Reactor 1 - Level 3
Reactor 2 - Level 3
Reactor 3 - Level 5
Reactor 4 - Level 3

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Postby 30plus » Wed Mar 30, 2011 11:04 am

You need to see who tell you the level.

IAEA - promoting nuclear energy, so the level can be conservative
Green Peace - against nuclear energy, so the level can be exaggerating

The truth may be in between ba.

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Re: Japan Fukushima INES (radiation) scale rating?

Postby Way2GO » Wed Mar 30, 2011 2:00 pm

Daddy D wrote:
So what is the real rating? And what's the implication? Chernobyl was Level 7 back then...imagine 3 times of Chernobyl? Mainly cos' the scale is to measure 1 reactor at a time only.


D INES scale for nuclear events is just like d Richter scale for earthquakes used to convey severity of an event to d public.
Level 7 is d highest rating classified as a major nuclear accident.
U shouldn't read d Greenpeace saying it as having 3 x severity, though it’s possible to say d radioactivity can be more or less.

D Chernobyl plant had no containment vessel.
Dat explosion spewed a highly radioactive cloud over a wide area over a some time.
D Fukushima Daiichi plant used a GE Mark I design which include a containment vessel
of very substantial thickness of concrete. Though d situation is still unpredictable, it is highly unlikely to become a repeat of Chernobyl.

As u know fr INES scale, a Level 5 rating means ‘an accident with wider consequences’
which implies dat d radioactive fallout is no longer limited nor contained within d installation but has spread to d external environment.
Implications now? At level 5, we r still safe fr nuclear fallout being a few thousand km fr d accident site.

30plus makes a good point. Depends on who u read.
d situation now at Fukushima Daiichi plant does not yet warrant an
'upgrade' to Level 6 or higher.

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Postby Way2GO » Fri Apr 01, 2011 4:41 pm

I received info dat d Japanese n IAEA use different methodology for sampling to measure radioactivity.
Dis could explain d difference in radioactivity measurements n d conflicting advice from Japanese authorities n IAEA eg Iitate village.

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Postby Daddy D » Sat Apr 02, 2011 4:59 pm

http://www.channelnewsasia.com/stories/ ... 84/1/.html

"TOKYO: Japanese workers struggling to contain a crisis at a crippled nuclear plant discovered Saturday a crack in a pit leaking highly radioactive water straight into the sea, the firm operating the facility said...."

LEAKING??!! I think it's more than that bah....
:!: :!: :!: :!:
:stupid: :stupid: :stupid:

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Postby Daddy D » Tue Apr 12, 2011 4:05 pm

http://www.asiaone.com/News/Latest%2BNe ... 73173.html

"TOKYO - Japan upgraded its nuclear emergency to a maximum seven on an international scale of atomic crises on Tuesday, the first time the ranking has been invoked since the Chernobyl disaster in 1986..."

:!: :!: :!: :!:
Sibei jiat lat... what's next?

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Postby verykiasu2010 » Tue Apr 12, 2011 5:06 pm

this is so sad for Japan.

hope the rumbling ends soon
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Postby Daddy D » Wed Apr 13, 2011 9:34 am

http://www.channelnewsasia.com/stories/ ... 23/1/.html

"SINGAPORE: Singapore authorities said there is no change in the assessment risk to the country, despite Japan's revised rating of the situation at the Fukushima Nuclear Plant.... Singapore is not directly impacted by the change in this emergency rating. The Singapore Government will continue with its surveillance and measures to safeguard the public against radioactive contamination..."

For updates, the public can visit www.gov.sg/japanquake

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Postby LKVM » Wed Apr 13, 2011 9:38 am

Daddy D wrote:http://www.asiaone.com/News/Latest%2BNews/Asia/Story/A1Story20110412-273173.html

"TOKYO - Japan upgraded its nuclear emergency to a maximum seven on an international scale of atomic crises on Tuesday, the first time the ranking has been invoked since the Chernobyl disaster in 1986..."

:!: :!: :!: :!:
Sibei jiat lat... what's next?


This is so frightening... I hope all will be fine :pray: :pray:

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