The
Fukushima disaster is starting to percolate into the maisntream
Japan
'Slow To Tackle Fukushima Nuclear Leak'
Leaks
of contaminated water at the crippled nuclear plant have worsened
because Japan has acted too slowly, a former US nuclear regulatory
chief claims.
Gregory
Jaczko left his post last year
24
September, 2013
US
and Japanese officials knew that leaks would occur when massive
amounts of water were used to cool molten reactors at the Fukushima
Daiichi plant after a major tsunami hit in March 2011, said Gregory
Jaczko, adding that he was surprised how long it took Japan to start
tackling the problem.
"It's
been known for a long time that this would be an issue," he told
a news conference in Tokyo.
"My
biggest surprise is to some extent how it's been allowed to
deteriorate, a little bit, and how it's almost become a surprise
again that there are contamination problems, that there is leakage
out into the sea."
Mr
Jaczko said that when the plant was in critical condition, with three
reactor cores melted and in dire need of cooling water, Japanese and
US officials had disputed how much water should be put in because of
the imminent leaks of radiation contaminated water and measures
needed to contain that problem.
The
Japanese government, he said, was concerned that flooding those
reactor vessels and reactor buildings with cooling water "would
lead to greater leakage of ground water," whereas the US Nuclear
Regulatory Commission emphasised the need to keep reactors cool and
under control to minimise the airborne contamination.
But
the "focus was lost" on the need to keep addressing the
radioactive water problem, apparently delaying action on mitigating
the problem, he said.
Japanese
officials confirmed for first time in July that contaminated ground
water had begun leaking into the Pacific soon after the accident.
Leaders
of the opposition Democratic Party of Japan, which was in power
during the crisis, acknowledged last week that a plan to build a
seawall to block contaminated water leaks into the sea has been put
off for nearly two years after plant operator Tokyo Electric Power
Co. allegedly refused to agree to the plan because of costs.
The
public is increasingly worried about the recent string of underground
water leaks into the ocean and from storage tanks holding
contaminated water used to cool the reactors.
The
government is now funding the development of more advanced water
treatment equipment and paying for a costly ice wall to surround the
reactor and turbine buildings and prevent them from contaminating
outside ground water.
Mr
Jaczko, who was chairman of the US Nuclear Regulatory Commission at
the time of the Fukushima accident, was in Tokyo at the invitation of
a Japanese anti-nuclear citizens' group.
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