No, according to the state's Department of Health:
The state Department of Health is conducting ongoing air monitoring for radiation to see if the nuclear plant incident in Japan has affected radiation levels in Washington. There have been no elevated readings.
State officials will keep monitoring the air here, but they don't expect any change in what they're finding.
Even if we were to see a "significant release" from a reactor in Japan, the Department of Health said in a statement yesterday afternoon, "radiation would be diluted before reaching our state and levels would be so low no protective action would be necessary."
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The two nuclear weapons dropped on Hiroshima and Nagasaki were detonated at relatively high altitudes above the ground and produced minimal fallout. Most of the injuries to the populations within 5 kilometers of the explosions were from heat and shock waves; direct radiation was a major factor only within 3 kilometers. Most of what we know about late health effects of radiation in general, including increased cancer risk, is derived from continuing observations of survivors exposed within 3 kilometers.http://www.americanscientist.org/issues/…
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