The Washington state's departments of agriculture and health say the "miniscule" amount of radiation in milk produced in the state poses no public health risks.

Because there is no impact on human health, no milk recalls will be initiated, the departments announced in a press release.

The U.S. Environmental Protection Agency found "miniscule" levels of radioactive iodine in milk March 30, but additional milk samples taken during the same week did not have any radioactive elements, even in trace amounts, according to the release.

In the one milk sample that had radioactive iodine-131, the levels were 5,000 times lower than the level indicating a health concern, including to children. Drinking a pint of milk with those levels of radiation would cause less than half the radiation exposure that occurs during a five-hour airplane flight, the officials said in the release.

The iodine-131 is thought to originate in Japan, where nuclear reactors were damaged in an earthquake and tsunami.

-- Matthew Weaver

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