From the State of Alaska Department of Environmental Conservation July 31, 2014:

JUNEAU- The Alaska departments of Environmental Conservation (DEC) and Health and Social Services (DHSS) have received further results from the U.S. Food and Drug Administration (FDA) on the latest radiation testing of Alaska seafood. The results confirm information from federal, state and international agencies that seafood in Alaska waters poses no radiation-related health concerns to those who consume it.

This testing of cod and three species of salmon (chinook, chum, and sockeye) showed no detection of the Fukushima-related radioisotopes iodine-131, cesium-134, or cesium-137. The results indicate no appreciable risk from any tested radionuclide in these fish and support previous radionuclide testing results of sablefish, pollock and halibut from Alaska waters. DEC and DHSS have posted the findings on their websites and will update the web pages with any future sampling results.

All samples were analyzed by standard techniques routinely used by the FDA to evaluate food safety. The fish samples were composites, containing tissue from several fish, and were collected using a statistical protocol. Samples were collected from the Aleutian/Bering Sea, Bristol Bay and Gulf of Alaska.

The state of Alaska continues to collaborate with its partners, including the Nuclear Regulatory Commission (NRC), Alaska Native Tribal Health Consortium, Cook Inlet Keeper, North Slope Borough, U.S. Environmental Protection Agency (EPA), FDA, and others to compile and evaluate additional environmental sample data.

For more detailed information on the analyses, visit DEC’s website:
http://dec.alaska.gov/eh/Radiation/index.html