Regarding any radiation threat to the California Coast from nuclear reactor breaches in Japan, caused by Friday’s earthquake, the Humboldt County Dept. of Health and Human Services indicates:
The US Nuclear Regulatory Commission (NRC) would be the lead agency if there were an emergency and has put out a number of news releases that might be useful at: http://www.nrc.gov/reading-rm/doc-collections/news/2011/.
One of the releases states in part:
“In response to nuclear emergencies, the NRC works with other U.S. agencies to monitor radioactive releases and predict their path. All the available information indicates weather conditions have taken the small releases from the Fukushima reactors out to sea away from the population. 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.”
A news release issued by the White House a short while ago includes similar statements:
“With regards to the United States, the NRC has released information stating that Hawaii, Alaska, the U.S. Territories and the U.S. West Coast are not expected to experience any harmful levels of radioactivity. … The United States and Japan both have highly advanced capabilities for monitoring and predicting the path of any radioactive release.”
The California Department of Public Health has set up an information line for questions about potential health effects. That number is (916) 341-3947. The California Emergency Management Agency (CalEMA) has a media line to answer non-health related questions. That number is (916) 845-8510.