Wednesday, August 24, 2011

Tatsuhiko Kodama: Fukushima fallout 30 times Hiroshima's; urges systematic monitoring & efficient decontamination

Fukushima fallout said 30 times Hiroshima's: Expert paints dire picture of decontamination zone, slams government for foot-dragging

Staff writer
The Japan Times
Wednesday, Aug. 24, 2011

Kodama, a professor of systems biology and medicine at the University of Tokyo, used clear-cut terms to get his message across. His ruthless criticism of the government's slow response has been viewed at least 1 million times.

"It means a significantly large amount of radioactive material was released compared with the atomic bomb," he told the Diet committee.

"What has the Diet been doing as 70,000 people are forced to evacuate and wander outside of their homes?"

Despite a hard-nosed image, the expert on radiology and cancer briefly showed a softer side while speaking to The Japan Times about his two grandchildren and their summer in the Tokyo heat.

"A lot of people ask me this, but Tokyo is safe from radiation now," Kodama, who heads the university's Radioisotope Center and the Research Center for Advanced Science and Technology, said Aug. 12.

"My two grandchildren swim outside in the pool, and there is no concern with the safety of food at this point."

But his expression became grave when discussing the 20-km no-go zone in Fukushima, explaining that decontamination of such areas will take not years but decades.

There are places he wouldn't let his grandchildren spend time outdoors freely, even in areas outside of the restricted zone.

"Cesium has been detected from urine and breast milk from those residing in Fukushima Prefecture, and the cause for that is still not specified," he warned...

"My theory is this — instead of trying to decide what is safe and what isn't at this point, we should focus on properly measuring the level of contamination in each area and on how to cleanse them."

According to Kodama, the Radioisotope Center estimates that radioactive materials released from Fukushima No. 1 amount to about 29.6 times of that released by the atomic bomb dropped on Hiroshima.

The group also found out that radiation from Fukushima will only decrease by one-tenth per year, which is about 100 times slower than radiation from the bomb...

Another sign of a lax government can be seen in how local governments appear to be short of equipment to measure radiation contamination in food and other produce.

Considering that contamination will be a major problem for the next couple of decades, the central government shouldn't hesitate to invest in and develop, even mass-produce, equipment that can allow checks for radiation.

Some companies have told Kodama it would only take three months to develop a system for efficient radiation measurement.

Kodama advised the government to take two different approaches in decontaminating Fukushima.

The first step should focus on creating a rough map of the wider area and the level of contamination, possibly using remote-control helicopters and Japan's advanced GPS system.

For emergency decontamination procedures, each community should have a call-in center that conducts quick cleanups once a request is made from residents...

"I am aware that there are many opinions regarding nuclear power. However, I believe all of us can agree that Fukushima and the surrounding area needs to be decontaminated as soon as possible," he said.
Read the entire article here.

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