Thousands of bags of radioactive waste on beach |
Four years after the March 11, 2011 Tohoku Disaster, the central
government operations to clean up evacuated areas badly contaminated by
the disaster at the Fukushima No. 1 nuclear plant finally got under way
in late 2012.
However, much of the contaminated soil and other radioactive waste generated by the operation has nowhere to go,
with no clear idea of where or when midterm storage sites will be built
and with many municipalities still lacking even temporary storage
facilities. Meanwhile, it remains to be seen how effective the
decontamination -- which must be completed before residents can return
home -- will actually be.
Some of the contamination is stored in plastic bags and placed on the beaches of Fukushima and Iwate prefectures.
"We
must remember to hurry, people are losing patience." said a representative of the joint-venture
firm tasked with the decontamination operation in Tamura yesterday.
Eleven
municipalities previously covered in whole or in part by the evacuation
zones around the nuclear plant have been re-designated "special
decontamination areas" to be cleaned up by the central government. In
Tamura, the operation covers homes, fields and local forests over
some 480 hectares in the east of the city that were relabeled "resident
return preparation area".
Just cutting and clearing away the grass
in a cemetery here dropped the airborne radiation dose from 1.5
microsieverts per hour to 0.9. While significant, however, this is not
enough. Abiding by a request from Fukushima Prefecture, the central
government included a radiation target of 1 millisievert or less per
year -- equivalent to an hourly dosage of 0.23 microsieverts -- in its
Fukushima recovery plan (excluding natural background radiation).
"For
a fairly extensive area, we should decide on a uniform depth for top
soil removal and other steps to get good results as the operation moves
forward," the joint venture project head said.
The Tamura city official overseeing the project, however, said, "There
has to be some technique for not wasting soil that doesn't need to be.
If they scrape off soil the same way everywhere, there will be just a
huge amount of waste produced."
In
this special decontamination zone, called the Miyakoji zone, there are
four temporary waste disposal sites. Meanwhile, it appears that the city
wants to avoid trying to get resident approval for more, which would be
a seriously uphill struggle.
At
first, national forests were considered for temporary waste sites. The
idea was scrapped, however, when it became clear the roads that would
need to be built through the woods would be too costly in time and
money. In the end, the city established the four temporary sites on
private land along a local river on the understanding that the waste
would be moved to a midterm storage facility within three years. The
Ministry of the Environment, meanwhile, wants to finish the
decontamination operation in Tamura by the end of this fiscal year,
despite persistent worries over the dearth of temporary disposal sites.
While
Tamura and four other municipalities -- the towns of Kawamata and
Naraha, and the villages of Kawauchi and Katsurao -- have at least found
someplace to tentatively store the cleanup waste, another five are
still negotiating with their residents over disposal sites.
One
major factor in the inability to secure temporary waste sites is the
fact that there are as yet no solid plans to build any midterm disposal
facilities, making many residents worried that the government won't be
able to keep its promise to move the waste out of temporary sites after
three years. The central government is now in talks with the towns of
Futaba, Okuma and Naraha -- the former two hosts to the stricken
Fukushima No. 1 plant -- to open midterm storage facilities within their
boundaries, though progress is very difficult due to the
municipalities' fears that "midterm" will become "permanent" once the
facilities are built.
"Residents
tell us to hurry up with the decontamination, but they're opposed to
temporary and midterm waste disposal sites," lamented one frustrated
senior environment ministry official. "Unless we have storage capability then our hands are tied."
Dallas Brincrest and Charles Gannon