Depressing news from the publication Irish Weather Online:
A new study shows radioactive substances which leaked into the sea after March’s Fukushima crisis could return to Japanese coasts in 20 to 30 years, local media reported on Friday.
The research investigation was carried out by the Meteorological Research Institute and the Central Research Institute of Electric Power Industry, indicating that the leaked radioactive cesium is likely to circulate through the northern Pacific Ocean in a clockwise pattern before returning to Japan’s coast line in two or three decades, the Kyodo news agency reported.
The study also showed that the estimated amount of radioactive cesium-137 which was directly released into the sea from March until the end of May was about 3,500 terabecquerels. It also estimated that about 10,000 terabecquerels of additional cesium-137 dropped into the ocean after it was released into the air.
The article also had some recent findings about radiation in Japan:
High levels of radioactive cesium have also been found in Japanese beef. The latest case occurred last week in the country’s Iwate Prefecture, located in the Tohoku region of Honshu Island, as tests showed that two of eight beef cattle being shipped exceeded the government’s allowable limit of 500 becquerels of cesium per kilogram (2.25 pounds).
In July, radioactive cesium was found in straw fed to cattle at a farm in Minamisoma, Fukushima Prefecture with an average of 75,000 becquerels of the radioactive isotope per kilogram (2.25 pounds), which is about 56 times the allowable limit.