Press Release (Nov 15,2011)
We had been studying to implement sampling surveys on the ocean soil, completed preparations and conducted the surveys on April 29, 2011. (Previously announced on May 3, 2011)
We conducted analysis for americium as well as curium because plutonium and uranium were detected from the ocean soil* sampled on September 8, 9, 12, 13, 15 and 25. As a result, Americium 241 was detected as shown in the appendix.
Today, we reported the results to NISA and the government of Fukushima Prefecture.
We will continuously conduct the same sampling surveys.
*The results of nuclide analysis for 3 major nuclides (I-131, Cs-134, Cs-137) were previously announced on September 9, 10, 13, 14, 16 and 26.
Detected Am-241 cannot be judged to be caused by the nuclear accident of this time for reasons below.
- Detected Pu-239 and 240 are within the range of past (FY1999 to FY 2008) analysis in the sea around Fukushima Daiichi Nuclear Power Station and Fukushima Daini Nuclear Power Station.
- Detected U-234, U-235 and U-238 are evaluated to be as same level as those exist in the natural environment
- Cm-242, Cm-243 and Cm-244, the nuclides that do not naturally exist, are not detected.
Published: November 16th, 2011 at 1:41 am ET
- Plutonium-238 from Fukushima plant detected for first time offshore — Tepco reveals data 9 months later April 15, 2013
- Officials: ‘Hot’ materials with 7 billion Bq/kg of cesium found 15 km from Fukushima plant — “Most likely” came from Unit 3 — Over 7,500 Bq/kg of Plutonium and Americium (PHOTOS) February 14, 2014
- Mother Tells Official: “Lick that soil! Please lick it! Children lick the soil — Please take the soil in your hand and lick it” after being told it doesn’t need to be removed from Fukushima school (VIDEO) October 3, 2012
- Study: High plutonium-241 activity detected over 30 kilometers from Fukushima plant — Additional research suggests “long-distance transport” of plutonium October 8, 2013
- Underground water skyrockets from ‘not detected’ to 1.7 Million Bq/liter of strontium-90 and other beta radionuclides — Antimony-125 now showing up — Tepco changes measurements from ‘under analysis’ to ‘out of range’ February 2, 2014