Scientists say a small amount of cesium-137 and cesium-134 were found in 15 tuna caught near San Diego, USA. This time, these chemicals were discharged into the seawater from the eastern coast of Japan for about 4 months. This is much earlier than the wind and current that brought the wreckage of the Japanese nuclear power plant to Alaska and the waters near the Pacific Northwest of the United States.
The researchers said in the report that these radioactive cesiums staying in tuna should not harm human health. The study was published in the Proceedings of the National Academy of Sciences.
The lead author of the report, McGrady of the Hopkins Marine Research Station at Stanford University, pointed out that the amount of radioactive material detected was much lower than the Japanese safety limit.
McGrady said in a telephone interview, “I will not tell others what to eat safely, or what to eat is not safe. Obviously some people think that any radioactive material is not good, and they hope to avoid it. But compared with the natural radiation Things… and safety limits, this content is not at all big.”