UN, diplomats seek to dispel nuclear anxiety

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VIENNA (AP) - Diplomats and U.N. officials sought Friday to dispel fears of a wider danger from radioactivity spewing from Japan’s crippled nuclear reactors, saying there were no hazards to health outside the immediate vicinity.

As emergency efforts to reduce the dangers of increased radiation from the crippled plant went into their eighth day, the U.N. nuclear agency described the situation for the second day in a row as worrying but stable.

Driven by winds over the Pacific Ocean, the radioactive plume released last week from the Fukushima Dai-ichi reached Southern California Friday, heightening concerns that Japan’s nuclear disaster was assuming international proportions.

However, the comments Friday reflected expectations by International Atomic Energy Agency officials and independent experts that radiation would dissipate so strongly by the time it reached the U.S. coastline that it would pose no health risk whatsoever to residents.

In Vienna, diplomats and officials familiar with the situation asserted there was little to fear outside of the 20 kilometer (12-mile) evacuated zone around the nuclear plant.

A diplomat with access to radiation tracking by the U.N.’s Comprehensive Test Ban Treaty Organization in Vienna cited readings from a California-based measuring station of the agency as about a billion times beneath levels that would be health threatening. He spoke to The Associated Press on condition of anonymity because the CTBTO does not make its findings public.

Meanwhile, air pollution regulators in Southern California also said they have not detected increased levels of radiation from the damaged Japanese nuclear reactors.

The South Coast Air Quality Management District said Friday that radiation measured at its three sites was not higher than typical levels.

The agency’s monitors are part of the U.S. Environmental Protection Agency’s network of more than 100 sensors across the nation that track radiation levels every hour.

In Alaska, Dr. Bernd Jilly, director of state public health laboratories, also said monitoring had shown no readings of above-normal levels of radiation.

Graham Andrew, a senior official of the Vienna-based International Atomic Energy Agency, suggested the diplomat’s comments reflected his own feelings.

“We want to study the data carefully, but one-billionth shows just how far away it is from human danger,” he said. “For members of the public, the dose limit in the air or ingested is 1 milisievert a year and this is 1,000 million times less than that.”

Andrew said that after consultation with the IAEA, the International Civil Aviation Organization found there was no reason to curtail normal international flights and maritime operations to and from Japan and “there is no medical basis for imposing additional measures to protect passengers.”

The CTBTO forecast earlier this week that some radioactivity would reach Southern California by Friday. A CTBTO graphic obtained Thursday by the AP showed a moving plume reaching the U.S. mainland after racing across the Pacific and swiping the Aleutian Islands.

A presentation Friday showed radiation levels peaking in Tokyo and other cities in the first days of the disaster at levels officials said were well below risk points before tapering off.

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