"An extensive area of more than 8,000 square kilometers has accumulated cesium 137 levels of 30,000 becquerels per square meter or more after the accident at the Fukushima No. 1 nuclear power plant, according to Asahi Shimbun estimates.
The affected area is one-18th of about 145,000 square kilometers contaminated with cesium 137 levels of 37,000 becquerels per square meter or more following the 1986 Chernobyl accident in the former Soviet Union.
The contaminated area includes about 6,000 square kilometers in Fukushima Prefecture, or nearly half of the prefecture. Fukushima Prefecture, the third largest in Japan, covers 13,782 square kilometers.
The government has not disclosed the size of the area contaminated with cesium 137 released from the crippled Fukushima No. 1 plant. Cesium 137 has a long half-life of about 30 years.
The Asahi Shimbun calculated the size of the contaminated area based on a distribution map of accumulated cesium 137 levels measured from aircraft, which was released by the science ministry on Sept. 8. "
"The scars of Japan's March 11 disaster are both glaringly evident and deceptively hidden.
Six months after a tsunami turned Japan's northeast into a tangled mess of metal, concrete, wood and dirt, legions of workers have made steady progress hauling away a good portion of the more than 20 million tonnes of debris covering ravaged coastal areas. The Environment Ministry says it expects to have it all removed by next March, and completely disposed of by 2014."
"This article from back in March describes some of the past safety problems at Japan's nuclear facilities. It briefly mentions issues the IAEA had as far back as the 1990′s with Japan's failing nuclear safety.
The arrangements for accidents, emergency planning and safety training by Japanese power companies were condemned as inadequate by IAEA inspectors after they visited four reactors in the 1990s. Altogether they found 90 deficiencies in safety procedures.
The IAEA's findings should have been a wake up call, the more concerning part is that they were completely unable to do anything about it. It did cause a major scandal in Japan as cover ups by the power companies hit the media. A considerable portion of the IAEA findings involved cracks in equipment, a serious danger. As of 2002 the IAEA did not know if anything had been done to solve the problems. They had not been invited back by Japan to visit the reactors for new inspections. This problem with the IAEA and their lack of ability to enforce anything has been criticized by many since the Fukushima disasters."
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