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Mushroom-shaped “pink cloud” seen at Fukushima after Reactor 3 exploded — Film: Nuclear bomb explosions caused “pink clouds of radiation”; “Clouds were pink from fallout… They told everyone there’s nothing to worry about” (VIDEO & PHOTOS)

‘The Age of Radiance: The Epic Rise and Dramatic Fall of the Atomic Era’ (2014) Craig Nelson, Simon&Schuster (emphasis added): Explosion tore through [Fukushima] Daiichi at 3:40 pm on the 14th, destroying Unit 3′s outer building… raising into the air a pink cloud. Some onlookers became terrified when winds pushed it into what to . . . → Read More: Mushroom-shaped “pink cloud” seen at Fukushima after Reactor 3 exploded — Film: Nuclear bomb explosions caused “pink clouds of radiation”; “Clouds were pink from fallout… They told everyone there’s nothing to worry about” (VIDEO & PHOTOS)

Gov’t: Fuel melted “much deeper” into concrete at Fukushima reactor than revealed — Triple the depth of original estimate — Tepco: “Impossible for us to evaluate potential impact”

Japan Times, Aug 6, 2014: Tokyo Electric Power Co. said Wednesday that its new estimate shows that all the fuel rods in reactor 3 at the Fukushima No. 1 nuclear power plant apparently melted down and fell onto the bottom of the containment vessel. […] According to the new estimate, all the melted fuel . . . → Read More: Gov’t: Fuel melted “much deeper” into concrete at Fukushima reactor than revealed — Triple the depth of original estimate — Tepco: “Impossible for us to evaluate potential impact”

TV: High-level radiation leak at Fukushima reactor thought to be from “cracks in containment vessel” — “Even more radioactive than expected” — Salt corrosion may have led to breach (VIDEO)

New York Times, Jan. 20, 2014: Highly radioactive water found in a reactor building at the destroyed Fukushima nuclear plant offers new evidence that the reactor’s containment vessel was breached during the accident, [Tepco] said Monday. [...] No. 3 reactor building [...] even more radioactive than expected [...]

NHK, Jan. 20, 2014: [...] new . . . → Read More: TV: High-level radiation leak at Fukushima reactor thought to be from “cracks in containment vessel” — “Even more radioactive than expected” — Salt corrosion may have led to breach (VIDEO)

Bloomberg: ‘Highly radioactive’ leak at Fukushima Unit 3 — NHK: Melted fuel coolant thought to be flowing from containment vessel for ‘unknown reason’ — 24 Million Bq/liter of strontium, other beta emitters (VIDEO)

Bloomberg, Jan. 20, 2014: Highly radioactive water was detected inside the No. 3 reactor building at the Fukushima Dai-Ichi nuclear plant, Tepco said in yesterday’s statement. [...] The latest leak threatens to undermine efforts by the company to distance itself from the March 2011 disaster [...] Beta radiation levels of 24 million becquerels per . . . → Read More: Bloomberg: ‘Highly radioactive’ leak at Fukushima Unit 3 — NHK: Melted fuel coolant thought to be flowing from containment vessel for ‘unknown reason’ — 24 Million Bq/liter of strontium, other beta emitters (VIDEO)

NRC comments on steam at Fukushima Unit 3 — Gundersen: Plutonium could be causing fissions, heating up melted fuel (AUDIO)

U.S. Nuclear Regulatory Commission spokesman David McIntyre on steam coming from Fukushima Daiichi Unit 3, Jan. 9, 2014: “This also happened last year at this time, and periodically since the tsunami in 2011 [...] We are in touch with the Japanese regulator and TEPCO, and from what we’ve seen and heard there is no . . . → Read More: NRC comments on steam at Fukushima Unit 3 — Gundersen: Plutonium could be causing fissions, heating up melted fuel (AUDIO)

Steam coming from Fukushima Unit 3 reactor building — Observed multiple times this week

Tepco (translation), Dec. 27, 2013: At around 7:00 am on December 27, and confirmed by the camera that from Unit 3 reactor building, 5th floor near the center, steam is generated. Have not been identified abnormal plant conditions of 54 minutes at 7:00 am the same day, the indicated value of the monitoring post . . . → Read More: Steam coming from Fukushima Unit 3 reactor building — Observed multiple times this week

Gundersen: Major problem inside pool at Fukushima Unit 3 — Pieces of nuclear fuel rods were blown out during criticality explosion — Building could ‘shatter’ if another big quake hits (VIDEO)

Title: Tour of Fukushima Daiichi Source: Fairewinds Energy Education Date: October 3, 2013

At 10:15 in

Arnie Gundersen, Fairewinds Chief Engineer: Also outside [the Fukushima Daiichi Unit 3] building, fuel pellets were found in the aftermath of the accident. Now, those were bulldozed under, but that should be an indication of a major problem . . . → Read More: Gundersen: Major problem inside pool at Fukushima Unit 3 — Pieces of nuclear fuel rods were blown out during criticality explosion — Building could ‘shatter’ if another big quake hits (VIDEO)

Steam observed 5 of previous 6 days at Fukushima Unit 3; Lasted for 24 hours straight at one point — Nuclear Expert: There could be pockets of corium still in molten state; Nobody quite understands what’s going on (AUDIO)

Tepco has reported seeing steam at the Fukushima Unit No. 3 Reactor Building almost everyday from September 13-18 (Prior to September 13, no steam had been observed for over a month — since August 7):

8:00 AM on September 13 – 3:00 PM on September 13 (7 hours) 8:00 AM on September 15 . . . → Read More: Steam observed 5 of previous 6 days at Fukushima Unit 3; Lasted for 24 hours straight at one point — Nuclear Expert: There could be pockets of corium still in molten state; Nobody quite understands what’s going on (AUDIO)

Nuclear Engineer: Estimated 276 quadrillion Bq of Cs-137 entered Fukushima basements — Triple Chernobyl total release — A portion “has already made its way to aquifer, whence it can easily flow into sea”

Title: The World Nuclear Industry Status Report 2013 Authors: Mycle Schneider, Antony Froggatt Date Published: July 2013

Mr. [Toru] Ebisawa, who had served NAIIC as an expert reactor engineer, estimated the amount of radioactivity that had seeped into the water that fills the basement of the reactor buildings (Unit-1, -2 and -3, as of . . . → Read More: Nuclear Engineer: Estimated 276 quadrillion Bq of Cs-137 entered Fukushima basements — Triple Chernobyl total release — A portion “has already made its way to aquifer, whence it can easily flow into sea”

Tepco: “Significant density” of Alpha radiation leaking from Unit 3 at Fukushima — Steam seen at reactor building “likely to be leaked” from containment vessel

Title: Sampling Results (All α) of Condensed Water at Unit 1-3 PCV Gas Control System (the Entrance of HEPA Filter) in Fukushima Daiichi Nuclear Power Station Source: Tepco Date: August 12, 2013 h/t SimplyInfo

Sampling of dust and drain of air bleed gas obtained at Unit 1-3 PCV gas control system was performed . . . → Read More: Tepco: “Significant density” of Alpha radiation leaking from Unit 3 at Fukushima — Steam seen at reactor building “likely to be leaked” from containment vessel

Fukushima Unit No. 3 steaming — Lasted more than four hours today — Observed ‘intermittently’ over past 13 days

Follow-up to: Tepco: Steam may be from gas leaking out of containment vessel at Fukushima Reactor No. 3

SOURCE: Tepco (July 18, 2013)

TEPCO: As of the steam coming from near the central part of the fifth floor (equipment storage pool side) of Unit 3 at around 4:15 AM on July 24 [Emphasis . . . → Read More: Fukushima Unit No. 3 steaming — Lasted more than four hours today — Observed ‘intermittently’ over past 13 days

‘Crisis’ at Fukushima plant — Tepco: Extremely radioactive water from trench is leaking directly into groundwater and going into ocean

Title: Fukushima trench water crisis returns Source: Kyodo Date: July 27, 2013

Fukushima trench water crisis returns

Tokyo Electric Power Co. said Saturday that the trench problem at the crippled Fukushima No. 1 nuclear plant has cropped up again and is sending highly radioactive water into the sea. [...]

[The water] contains 2.35 billion . . . → Read More: ‘Crisis’ at Fukushima plant — Tepco: Extremely radioactive water from trench is leaking directly into groundwater and going into ocean

Tepco: Steam may be from gas leaking out of containment vessel at Fukushima Reactor No. 3

Title: Steam Found Near the Central Part of the Fifth Floor (Equipment Storage Pool Side) of Unit 3 Reactor Building Source: TEPCO Press Release Date: July 26, 2013

[...] the steam is likely to generate in the following mechanism [...]

The steam is estimated to be the rainwater, which was streamed down the gap . . . → Read More: Tepco: Steam may be from gas leaking out of containment vessel at Fukushima Reactor No. 3

‘Mysterious’ steam at Fukushima Unit 3 — NPR: “Fuel could have shifted… or worse restarted nuclear reactions” — Tepco: “We still don’t know for sure the cause” (AUDIO)

AFP, July 25, 2013: [...] mysterious steam continued to rise from a broken unit. [...] steam that began appearing last week near the badly-wrecked Reactor 3 was still in evidence, the company said, admitting it was still no closer to identifying the reason for the vapour. “Workers could still see the steam rising from . . . → Read More: ‘Mysterious’ steam at Fukushima Unit 3 — NPR: “Fuel could have shifted… or worse restarted nuclear reactions” — Tepco: “We still don’t know for sure the cause” (AUDIO)

Fukushima Unit 3 steaming again, third time in a week — Asahi: High radiation levels detected near where it was observed — Tepco does not know where it’s coming from (PHOTOS)

AFP, July 24, 2013: [...] Today, TEPCO said workers had noticed steam around the fifth floor of the building housing Reactor Number 3, which was wrecked by the tsunami of March 2011. It was the second time in two days and the third time in a week that steam had been observed. The firm . . . → Read More: Fukushima Unit 3 steaming again, third time in a week — Asahi: High radiation levels detected near where it was observed — Tepco does not know where it’s coming from (PHOTOS)

BBC: It’s boiling somewhere inside Fukushima Unit No. 3 — Reactor supposed to be in cold shutdown — Situation ‘worrying’

Title: Fukushima nuclear plant: Japan takes steps over sea leak Source: BBC News Date: July 23, 2013 h/t Anonymous tip

[...]  (Tepco) said steam was seen around the fifth floor of the building housing Reactor No 3 [...]

It is not clear what is causing the steam [...]

The sight of steam rising is . . . → Read More: BBC: It’s boiling somewhere inside Fukushima Unit No. 3 — Reactor supposed to be in cold shutdown — Situation ‘worrying’

AFP: ‘Fukushima reactor site engulfed by steam’ — Kyodo: ‘Something like steam’ coming from unknown source at Unit No. 3 — Tepco: ‘Continuously wafting through the air’ — Work to remove rubble suspended

Kyodo, July 23, 2013: [... Tepco] said Tuesday it has confirmed “something like steam” is coming out of the No. 3 reactor building again [...Tepco] said one of its monitoring cameras showed what appeared to be steam coming out of the building’s fifth floor just above the reactor container at around 9:05 a.m. Tuesday. . . . → Read More: AFP: ‘Fukushima reactor site engulfed by steam’ — Kyodo: ‘Something like steam’ coming from unknown source at Unit No. 3 — Tepco: ‘Continuously wafting through the air’ — Work to remove rubble suspended

Alarm as steam rises from Fukushima No. 3 reactor — Concern about uncontrolled chain reaction — Contains highly lethal MOX fuel — Tepco: “We don’t believe an emergency situation is breaking out” (VIDEO)

NYTimes, July 18, 2013 at 5:00a ET: The operator of the Fukushima Daiichi nuclear power plant stood ready Thursday to inject boric acid into one of its most heavily damaged reactors after it found steam emanating from the reactor building. The preventive measure would stave off criticality, or an uncontrolled nuclear chain reaction, in . . . → Read More: Alarm as steam rises from Fukushima No. 3 reactor — Concern about uncontrolled chain reaction — Contains highly lethal MOX fuel — Tepco: “We don’t believe an emergency situation is breaking out” (VIDEO)

Gundersen: Extremely radioactive rubble on Fukushima Reactor No. 3 has to be nuclear fuel… from either spent fuel pool or reactor! — Can’t be from simple hydrogen explosion

Fairewinds chief engineer Arnie Gundersen on how the extremely radioactive debris reported yesterday got on top of Reactor 3:

It has to be from fuel…. either the SFP or the reactor!

A simple hydrogen explosion would not dislodge this much radiation.

See also: Extremely radioactive rubble found on top of Fukushima Reactor No. 3 . . . → Read More: Gundersen: Extremely radioactive rubble on Fukushima Reactor No. 3 has to be nuclear fuel… from either spent fuel pool or reactor! — Can’t be from simple hydrogen explosion

Extremely radioactive rubble found on top of Fukushima Reactor No. 3 (PHOTO)

May 4, 2013 Tepco press release with summary translation by Fukushima Diary:

[...] extremely radioactive debris on the top of reactor3.

The debris was found in the North side of the top, where used to be the operation floor.

When they loaded it onto the remote controlling truck, they measured 540 mSv/h. [...]

From . . . → Read More: Extremely radioactive rubble found on top of Fukushima Reactor No. 3 (PHOTO)

NRC: Fukushima reactor’s containment leaked at 300% per day — Assumed only 1% (VIDEO)

Source: The Medical and Ecological Consequences of the Fukushima Nuclear Accident, Day 1 Author: The Helen Caldicott Foundation Date Presented: March 11, 2013

At ~60:00 in

Arnie Gundersen, Fairewinds Energy Education:

What the NRC said in a phone call on March 23 [2011] is that the reactors at Daiichi were leaking at 300% . . . → Read More: NRC: Fukushima reactor’s containment leaked at 300% per day — Assumed only 1% (VIDEO)

Gundersen: Image shows radioactive “thermal flare” was coming from Fukushima Reactor 3 — “Exactly where the containment should be” (VIDEO)

Source: The Medical and Ecological Consequences of the Fukushima Nuclear Accident, Day 1 Author: The Helen Caldicott Foundation Date Presented: March 11, 2013

At 66:30 in

Arnie Gundersen, Fairewinds Energy Education: Tepco’s known about this for 2 years, but has not talked about it.

That flare right here is exactly where the containment . . . → Read More: Gundersen: Image shows radioactive “thermal flare” was coming from Fukushima Reactor 3 — “Exactly where the containment should be” (VIDEO)