Radioactive Bluefin Tuna: Radioactivity found in US Coast Bluefin Tuna

By on May 30, 2012 in Animals, Science, United States, World Comments

A group of bluefin tuna that was caught off the US coast was said to have been found containing radioactive material from Fukushima nuclear plant in Japan, according to a published study by the Proceedings of the National Academy of Sciences (PNAS) on Tuesday, May 29, 2012.

The PNAS researchers reportedly conducted studies on 15 bluefin tuna caught off the San Diego coast in California. The researchers found “modestly elevated levels” of two radioactive isotopes in the bluefin tuna.

The radioactive material found by researchers include cesium-134 and cesium-137. These were the same radioactive material found in bluefin tuna caught in the same area before the Fukushima nuclear disaster and to yellowfin tuna caught before or after the accident.

The researchers clarified that the level of radioactivity found has no risk to public health since they give off far less radiation than potassium-40, a naturally-present isotope found in all the fish.

According to the PNAS report, the “findings indicate that Pacific bluefin tuna can rapidly transport radionuclides from a point source in Japan to distant ecoregions and demonstrate the importance of migratory animals as transport vectors.”

Researcher Nicholas S. Fisher said that “I personally would not hesitate to eat the tuna that were caught off the coast of California.”



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