No repeat of Chernobyl disaster for Japan, experts say

Pictures of mist above the plant suggest only small amounts of radiation expelled as part of measures to ensure its stability.

By REUTERS
March 12, 2011 19:25
3 minute read.
Chernobyl nuclear power plant

Chernobyl 311 (R). (photo credit: REUTERS)

 
X

Dear Reader,
As you can imagine, more people are reading The Jerusalem Post than ever before. Nevertheless, traditional business models are no longer sustainable and high-quality publications, like ours, are being forced to look for new ways to keep going. Unlike many other news organizations, we have not put up a paywall. We want to keep our journalism open and accessible and be able to keep providing you with news and analyses from the frontlines of Israel, the Middle East and the Jewish World.

As one of our loyal readers, we ask you to be our partner.

For $5 a month you will receive access to the following:

  • A user experience almost completely free of ads
  • Access to our Premium Section
  • Content from the award-winning Jerusalem Report and our monthly magazine to learn Hebrew - Ivrit
  • A brand new ePaper featuring the daily newspaper as it appears in print in Israel

Help us grow and continue telling Israel’s story to the world.

Thank you,

Ronit Hasin-Hochman, CEO, Jerusalem Post Group
Yaakov Katz, Editor-in-Chief

UPGRADE YOUR JPOST EXPERIENCE FOR 5$ PER MONTH Show me later Don't show it again

BRUSSELS - Japan should not expect a repeat of the Chernobyl nuclear disaster after an explosion blew the roof off one of its nuclear power plants that had been shaken in a huge earthquake, experts said on Saturday.

Japan's Daiichi 1 reactor north of the capital Tokyo began leaking radiation after the 8.9-magnitude earthquake triggered a tsunami, and swiftly prompted fears of a nuclear meltdown.

RELATED:
Explosion, radiation leakage rock Japan nuclear plant
More than 1700 likely dead in Japan quake, tsunami

But experts said pictures of mist above the plant suggested only small amounts of radiation had been expelled as part of measures to ensure its stability, far from the radioactive clouds that Chernobyl spewed out when it exploded in 1986.

Be the first to know - Join our Facebook page.


"The explosion at No. 1 generating set of the Fukushima nuclear plant in Japan, which took place today, will not be a repetition of the Chernobyl nuclear disaster," said Valeriy Hlyhalo, deputy director of the Chernobyl nuclear safety centre.

He was quoted by Interfax news agency as saying Japanese reactors were better protected than Chernobyl, where just over 30 firefighters were killed in the explosion. The world's worst civilian nuclear disaster, Chernobyl has also been blamed for thousands of deaths due to radiation-linked illness.

"Apart from that, these reactors are designed to work at a high seismicity zone, although what has happened is beyond the impact the plants were designed to withstand," Hlyhalo said.

"Therefore, the consequences should not be as serious as after the Chernobyl nuclear disaster."

CORE INTACT

Japanese officials said on Saturday that the nuclear reactor's core was intact, and that sea water would be poured into the leaking reactor to cool it down and reduce pressure in the unit -- a statement that should calm any fears.

Experts said it was crucial to make sure the steel reactor container had not been shattered in the explosion or in the earthquake.



"If the pressure vessel, which is the thing that actually holds all the nuclear fuel ... if that was to explode -- that's basically what happened at Chernobyl -- you get an enormous release of radioactive material," said Prof. Paddy Regan, nuclear physicist from Britain's Surrey University.

"It doesn't look from the television pictures ... as though it's the vessel itself."

Television footage showed an explosion in a large building in the area of the number one reactor at the Daiichi nuclear facility. Grey smoke billowed from the site and later, a building was shown without its exterior walls.

Robert Grimes, professor of materials physics at Imperial College London, said earlier it had seemed that back-up generators had failed and had allowed pressure to build up.

"It does seem as if the back-up generators although they started initially to work, then failed," Grimes told BBC television, adding that the explosion was probably the large release of that pressure.

"If it's that, then we're not in such bad circumstances ... Despite the damage to the outer structure, as long as that steel inner vessel remains intact, then the vast majority of the radiation will be contained.

Most experts said the relatively slight damage to the reactor was testimony to the improved security of nuclear power, something that has convinced more governments to adopt the technology in recent years despite environmentalists' concerns.

"We must remember that there are 55 reactors in Japan and this was a huge earthquake, and as a test of the resilience and robustness of nuclear plants it seems they have withstood the effects very well," Regan said.

Related Content

Angela Merkel
August 21, 2018
More refugees find jobs in Germany, integration going 'pretty well'

By REUTERS