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Nuclear Expert in Japan: Plutonium “is everywhere… it is everywhere” after Fukushima reactors exploded — It’s being redeposited in “unanticipated” locations — “Black radioactive dust just wherever you go” — “It’s running right into Pacific Ocean” (VIDEO)

Excerpts from interview with Arnie Gundersen, Fairewinds’ chief engineer and former nuclear engineer during speaking tour in Japan, Feb 17, 2016 (at 2:30 in):

Full interview here: Soundcloud | YouTube

Expert: Plutonium-241 from Fukushima nearly 70,000 times more than atomic bomb fallout in Japan — Gov’t Labs: Large areas of oceans contaminated by plutonium from events such as Fukushima; Build-up in biosphere expected; Considerable hazard to humans — Officials: Molten fuel now ‘particle-like’, contains ‘special’ nuclear materials

Taeko Shinonaga, head of Radioanalytical Laboratory at Helmholtz Zentrum Munchen (research institution founded jointly by Germany’s Federal Ministry of Education & Research and Bavaria’s Finance Ministry), scientists from Technische Universitat Munchen (Germany), Verhandlungen der Deutschen Physikalischen Gesellschaft 2013 meeting (emphasis added): Detection of long-lived plutonium isotopes in environmental samples by Accelerator Mass Spectrometry (AMS) . . . → Read More: Expert: Plutonium-241 from Fukushima nearly 70,000 times more than atomic bomb fallout in Japan — Gov’t Labs: Large areas of oceans contaminated by plutonium from events such as Fukushima; Build-up in biosphere expected; Considerable hazard to humans — Officials: Molten fuel now ‘particle-like’, contains ‘special’ nuclear materials

Nuclear Expert: We found ‘mystery’ Fukushima plutonium; Why it’s there is yet to be understood, this was not expected — US Gov’t Expert: I don’t want to go down the rabbit hole too far… There’s speculation about plutonium fuel and about what other fuel they were using (VIDEO)

Princeton University’s Institute for the Science and Technology of Materials (PRISM), presentation by Georg Steinhauser of Colorado State University, scheduled for Nov. 5, 2014 (emphasis added): Radionuclide Analysis in Environmental Research after the Fukushima Nuclear Accident — The Fukushima nuclear accident will remain in public memory as one of the worst environmental disasters of . . . → Read More: Nuclear Expert: We found ‘mystery’ Fukushima plutonium; Why it’s there is yet to be understood, this was not expected — US Gov’t Expert: I don’t want to go down the rabbit hole too far… There’s speculation about plutonium fuel and about what other fuel they were using (VIDEO)

Plutonium detected underground near Fukushima reactor — Test results not revealed publicly for almost a year after sampling date — Officials plan to pump up groundwater from same well it was found in and dump it into Pacific Ocean (PHOTO)

Kyodo News, Aug 11, 2014: Plan filed to build toxic water dumping facility at Fukushima plant [...] TEPCO plans to conduct performance tests next week [...] using water it will start pumping up on a trial basis Tuesday [...] Radioactive substances [...] have been detected in some water samples from the wells. TEPCO says . . . → Read More: Plutonium detected underground near Fukushima reactor — Test results not revealed publicly for almost a year after sampling date — Officials plan to pump up groundwater from same well it was found in and dump it into Pacific Ocean (PHOTO)

‘Increasing alarm’ at Fukushima: Trenches filled with thousands of tons of plutonium contaminated liquid leaking into ocean — ‘Biggest risk’ at plant — ‘Exceptionally difficult’ problem — ‘Constant flow’ in and out of trenches — ‘Racing to stop’ more from coming in (PHOTO)

Wall St. Journal, Aug 7, 2014 (emphasis added): [Shunichi Tanaka, chairman of the Nuclear Regulation Authority] said [Tepco] needs to get its priorities straight when it comes to work to decommission [...] Fukushima Daiichi [...] “The biggest risk is the trench water. Until that matter is addressed, it will be difficult to proceed with . . . → Read More: ‘Increasing alarm’ at Fukushima: Trenches filled with thousands of tons of plutonium contaminated liquid leaking into ocean — ‘Biggest risk’ at plant — ‘Exceptionally difficult’ problem — ‘Constant flow’ in and out of trenches — ‘Racing to stop’ more from coming in (PHOTO)

New report estimates 278 trillion Bq of plutonium released from Fukushima reactors — Over 200 times higher than amount reported by Tepco — “Highly radiotoxic when incorporated into human body” as it decays

Evaluation of the Fukushima Accident Source Term through the fast running code RASCAL 4.2 (pdf), ENEA Bologna Research Centre, May 23, 2014: This Report presents the results of the application of the fast-running US-NRC direct code RASCAL 4.2 to the estimation of the Fukushima Source Term. [...] it is plausible that the ventings that . . . → Read More: New report estimates 278 trillion Bq of plutonium released from Fukushima reactors — Over 200 times higher than amount reported by Tepco — “Highly radiotoxic when incorporated into human body” as it decays

Study: Plutonium from Fukushima went further than Chernobyl — Researchers ‘surprised’ their most plutonium-contaminated sample was from site farthest from Fukushima plant — Concern material is flowing into Pacific Ocean from land

Environmental Science & Technology (American Chemical Society), July 11, 2014 (emphasis added): Novel Insights into Fukushima Nuclear Accident from Isotopic Evidence of Plutonium Spread along Coastal Rivers

Our results demonstrate that Pu isotopic compositions similar to the ones found in roadside dust samples outside the 20-km exclusion zone in Iitate-Mura and Minamisoma municipalities could . . . → Read More: Study: Plutonium from Fukushima went further than Chernobyl — Researchers ‘surprised’ their most plutonium-contaminated sample was from site farthest from Fukushima plant — Concern material is flowing into Pacific Ocean from land

Scientists: Plutonium released from Fukushima “is of radiological concern”; Reactor must be source, not spent fuel pool — Study: Plutonium found 120 km from plant; “Pu and non-natural uranium certainly increased in environment”

Environmental Science & Technology (ACS Publications), Apr. 1, 2014: Airborne Plutonium and Non-Natural Uranium from the Fukushima DNPP Found at 120 km Distance a Few Days after Reactor Hydrogen Explosions — Plutonium (Pu) and non-natural uranium (U) originating from the Fukushima Daiichi Nuclear Power Plant (FDNPP) were identified in the atmosphere at 120 km . . . → Read More: Scientists: Plutonium released from Fukushima “is of radiological concern”; Reactor must be source, not spent fuel pool — Study: Plutonium found 120 km from plant; “Pu and non-natural uranium certainly increased in environment”

Plutonium-burning reactors to restart in Japan? — Gov’t forcing companies to use MOX fuel — Official: “We have no other choice”

Title: Plutonium problem lingers as mixed-oxide fuel comes to Japan Source: Asahi Authors: Toshio Kawada, Rintaro Sakurai, Shinya Takagi and Mari Fujisaki Date: June 25, 2013

Plutonium problem lingers as mixed-oxide fuel comes to Japan [...] Four utilities plan to apply for restarting 12 reactors as soon as new nuclear safety standards take effect . . . → Read More: Plutonium-burning reactors to restart in Japan? — Gov’t forcing companies to use MOX fuel — Official: “We have no other choice”

Study: Fukushima plutonium in Pacific Ocean from ‘liquid direct releases’?

Title: Should we measure plutonium concentrations in marine sediments near Fukushima? Source: Journal of Radioanalytical and Nuclear Chemistry Author: R. Periáñez, Kyung-Suk Suh, Byung-Il Min Date: February 2013

Excerpt

Much less information is available in the case of plutonium isotopes. Trace amounts of Pu isotopes originating from the accident have been identified in soil . . . → Read More: Study: Fukushima plutonium in Pacific Ocean from ‘liquid direct releases’?

UPDATE: Plutonium measured in 3/11 disaster debris

*Update* EXSKF: Radioactive Japan: Sanjo City’s Detection of Plutonium in the Iwate Debris and Soil Causing Excitement on Twitter … “levels are well within the background; they are actually much lower than the background measured in the past”

Fukushima Diary:  Plutonium-239, 240 and Strontium were measured from soil and wooden chips of Ohtsuchi cho Iwate [...] . . . → Read More: UPDATE: Plutonium measured in 3/11 disaster debris

Berkeley Nucleonics: Plutonium-239 levels were almost as high as Cesium-137 a dozen kilometers from Fukushima Daiichi (PHOTO & VIDEO)

Title: Berkeley Nucleonics Japan Update Page Source: Berkeley Nucleonics

Live Map in Fukushima (SAM 940 Readings) – Ground

Note airborne uranium levels mentioned in the video (date & location unknown):

. . . → Read More: Berkeley Nucleonics: Plutonium-239 levels were almost as high as Cesium-137 a dozen kilometers from Fukushima Daiichi (PHOTO & VIDEO)

Gundersen: A ton of plutonium was in each Fukushima reactor — Host shocked (VIDEO)

Title: Arnold Gundersen with the latest on Fukushima: its effects on Japan, and the global risks posed by the No. 4 reactor Source: If You Love This Planet Radio Author: Dr. Helen Caldicott Date: July 27, 2012

This week, Dr. Caldicott has a new conversation with nuclear engineer Arnold Gundersen about the ongoing nuclear . . . → Read More: Gundersen: A ton of plutonium was in each Fukushima reactor — Host shocked (VIDEO)

‘Special Report’: Plutonium levels suggest fuel rods were shattered during hydrogen explosions

PDF: Estimating the Potential Impact of Failure of the Fukushima Daiichi Unit 4 Spent Fuel Pool A Local Problem for Japan or a Global Mega Crisis? Holophi Special Report Paul C. Gailey, Ph.D., President & CEO, Holophi CH AG April 2012

Abstract

Extreme opinions are being voiced about the risk of global catastrophe . . . → Read More: ‘Special Report’: Plutonium levels suggest fuel rods were shattered during hydrogen explosions

Official: Plutonium detected in black substance from Minamisoma (PHOTOS)

UPDATED HERE: Source: Over 500 microSv/h detected from black substance (PHOTO)

Comments by Koichi Oyama translated by Fukushima Diary:

Sample was taken after decontamination. The sample contains soil, sand, and water other than black substance. (Water ratio is not announced.) Sample to consist of only black substance and water (Moisture content = 71.4%) contains . . . → Read More: Official: Plutonium detected in black substance from Minamisoma (PHOTOS)

Japan Times Headline: Machine fell into MOX spent-fuel pool -Tepco — “Highly dangerous mixed oxide fuel”

Title: Machine fell into MOX spent-fuel pool: Tepco Source: Kyodo via The Japan Times Online Date:

A hydrogen explosion at the Fukushima No. 1 plant last March sent a 35-ton machine plunging into the spent-fuel pool of reactor 3, which uses highly dangerous mixed oxide fuel, Tokyo Electric has reported. 

[...] The No. 3 . . . → Read More: Japan Times Headline: Machine fell into MOX spent-fuel pool -Tepco — “Highly dangerous mixed oxide fuel”

Local Official: Japan gov’t did not reveal plutonium-241 detection — Radiation dose was 50 times higher than total of other three plutonium isotopes that were mentioned (VIDEO)

Title: An interview with Mr. Koichi Oyama from Minamisoma (Oct.2011) Uploaded by: amuosim Upload Date: Mar 30, 2012

Interview with Mr. Koichi Oyama, member of the city council in Minamisōma city

At 9:30 in

This shows four kinds of plutonium were observed. But in press conference held by Ministry of Education, Culture, Sports, Science . . . → Read More: Local Official: Japan gov’t did not reveal plutonium-241 detection — Radiation dose was 50 times higher than total of other three plutonium isotopes that were mentioned (VIDEO)

Group with SAM 940 isotope identifier detected high levels of Plutonium-239 near Iwaki a month after quake — 50km south of Fukushima Daiichi — Found at multiple locations (MAP & VIDEO)

Follow-up to: Report: Plutonium ratio 200 times higher than gov’t says — Detection made 50km south of Fukushima Daiichi (RESULTS)

Title: Fukushima Isotope Data Source: Global DIRT Date: April 2011

This data was taken by a Global DIRT assessment team of the Fukushima I Nuclear Power Plant. Data was collected using a Berkeley Nucleonics . . . → Read More: Group with SAM 940 isotope identifier detected high levels of Plutonium-239 near Iwaki a month after quake — 50km south of Fukushima Daiichi — Found at multiple locations (MAP & VIDEO)

Report: Plutonium ratio 200 times higher than gov’t says — Detection made 50km south of Fukushima Daiichi (RESULTS)

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UPDATE: See updated translation here: Low-Level Plutonium of #Fukushima Origin Detected in Iwaki City, 40 Kilometers South of Fukushima I Nuke Plant

“Further, the ratio of Pu239+240/Cs-137 is 9.0E-5, which is 200 times the government estimate of 4.3E-7, showing more plutonium being detected than the government estimate indicates. It is probably because of fractionation.”

. . . → Read More: Report: Plutonium ratio 200 times higher than gov’t says — Detection made 50km south of Fukushima Daiichi (RESULTS)

Gov’t: Highest plutonium concentration found almost 20km away from Fukushima plant

Title: Fukushima contamination is much less extensive than Chernobyl – AJW by The Asahi ShimbunSource: AsahiDate: March 14, 2012

The Ministry of Education, Culture, Sports, Science and Technology released its findings March 13 Soil analysis at 2,200 locations within a 100-kilometer radius of the Fukushima plant since June found  [...] the maximum strontium-90 concentration . . . → Read More: Gov’t: Highest plutonium concentration found almost 20km away from Fukushima plant

L.A. Times: Speculation that “supercritical fission event” occurred at Fukushima reactor irradiating plutonium, says nuclear expert — Explosion so massive investigators found fuel rod fragments a mile away

Follow-up to: Just-Published Study: Plutonium being found away from Fukushima is from nuclear fuel fragments blown out after explosions

Title: Plutonium near Fukushima plant poses little risk, study says Source: Los Angeles Times Author: Amina Khan (Ralph Vartabedian contributed to report) Date: March 8, 2012 Emphasis Added

[...] In the area around the Fukushima . . . → Read More: L.A. Times: Speculation that “supercritical fission event” occurred at Fukushima reactor irradiating plutonium, says nuclear expert — Explosion so massive investigators found fuel rod fragments a mile away

Just-Published Study: Plutonium being found away from Fukushima is from nuclear fuel fragments blown out after explosions

enenews_ 2012-03-09 00.11t

Title: Isotopic evidence of plutonium release into the environment from the Fukushima DNPP accident Author: Jian Zheng, Keiko Tagami, Yoshito Watanabe, Shigeo Uchida, Tatsuo Aono, Nobuyoshi Ishii, Satoshi Yoshida, Yoshihisa Kubota, Shoichi Fuma & Sadao Ihara Date: 08 March 2012 Emphasis Added

[...] It was found that although the inventories of Pu isotopes . . . → Read More: Just-Published Study: Plutonium being found away from Fukushima is from nuclear fuel fragments blown out after explosions