All the available information continues to indicate Hawaii, Alaska, the U.S. Territories and the U.S. West Coast are not expected to experience any harmful levels of radioactivity as the radioactive plume from the Japanese nuclear nears the region, according to the the US Nuclear Regulatory Commission.
According to the NRC, given the thousands of miles between the two countries, Hawaii, Alaska, the U.S. Territories and the U.S. West Coast are not expected to experience any harmful levels of radioactivity.
The NRC said it is working with other U.S. agencies to monitor radioactive releases and predict their path. In making protective action recommendations, the NRC takes into account a variety of factors that include weather, wind direction and speed, and the status of the problem at the reactors.
At the same time, the NRC said that according to the guidelines for public safety that would be used in the United States under similar circumstances, it believes it is appropriate for U.S. residents within 50 miles of the Fukushima reactors to evacuate.
The NRC said that in the United States protective actions recommendations are implemented when projected doses could exceed 1 rem to the body or 5 rem to the thyroid. A rem is a measure of radiation dose. The average American is exposed to approximately 620 millirems, or 0.62 rem, of radiation each year from natural and manmade sources.