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Posts Tagged ‘Fukushima nuclear’

Radiation Levels at Fukushima Hugely Underestimated: TEPCO

Posted by feww on February 8, 2014

NOTE: Many of the links posted below have previously been blocked or buried by Google, WordPress and others

“NEVER-ENDING” NUCLEAR DISASTER
.

TEPCO admits serious flaws in its Fukushima radiation readings

The operator of the nuked Fukushima Daiichi nuclear plant said it will review its radiation data because their initial readings may be seriously flawed.

Tokyo Electric Power Company (TEPCO) says it detected radiation levels of 5 million becquerels per liter of radioactive strontium in groundwater samples collected last July from one of its wells near the ocean.

The radioactivity level is more than 160,000 times the regulatory maximum  for radioactive wastewater allowed to be released into the sea.

IAEA at Fukushima
A team [of well-paid observers
from the International Atomic Energy Agency (IAEA) holding hands singing kumbaya at Fukushima, December 2013. “The team has praised Japan for making progress in stabilizing the Fukushima nuclear plant,” reported BBC. Image IAEA handout via Reuters/BBC.

Based on the latest admission, TEPCO now estimates with that level of radioactive strontium present, the count for beta-emitting radioactive substances must be 10 million becquerels per liter, or 11 times their initial estimate of 900,000 becquerels per liter, reported NHK.

The plant operator attributes the error to incorrect measuring methods that were in place until last October.

TEPCO says it will review other data acquired using the old, improper method, including the radiation level of more than 300 tons of toxic waste water that leaked from a storage tank in August 2013.

The initial reading for the leaked radioactive water showed up to 80-million becquerels per liter of beta ray-emitting substances, including strontium, said the report.

On October 18, 2013 FIRE-EARTH said [but was censored by Google, WordPress and others]:

  • Fukushima Potentially More Disastrous Than Hiroshima

On November 7, 2013 FIRE-EARTH said [but was censored by Google, WordPress and others]:

  • Scale of potential catastrophe at Fukushima could dwarf a limited nuclear war.

On January 13, 2014 FIRE-EARTH said [but was censored by Google, WordPress and others]:

THE TEPCO REPORT, QUOTED BY JAPAN’S ASAHI SHIMBUN, MAY BE SERIOUSLY FLAWED.

ACCORDING TO http://new.atmc.jp/ THE RADIATION LEVEL AT OR NEAR FUKUSHIMA PLANT IS ≥ 40 MICROSIEVERT PER HOUR (OR ~ 350 mSv/yr)

NOTES:

1. Radiation dose of about 2,000 millisieverts (200,000 millirems) cause serious illness.

2. Average background radiation in the US is about 3 mS/yr.]

3. The average annual radiation dose per person in the U.S. is currently 620 millirem (6.2 mSv), according to EPA. “Half of our average dose comes from natural background sources: cosmic radiation from space, naturally occurring radioactive minerals in the ground and in your body, and from the radioactive gases radon and thoron, which are created when other naturally occurring elements undergo radioactive decay. Another 48 percent of our dose comes from medical diagnostics and treatments.”

Related Links

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Look for the Cracks!

Posted by feww on January 21, 2014

NOTE: At least two of the links posted below have previously been censored by Google and WordPress

ONGOING NUCLEAR DISASTER
.

Fukushima Farce: Look for the cracks and ya shall find them at the and of the brook!

A day or so after FIRE-EARTH Editor suggested radioactive leaks inside the No. 3 reactor building most probably came from cracks in the containment vessel, the plant operator TEPCO says they suspect the leak originates from around an opening in the containment vessel which connects to a steam pipe.

TEPCO says the area around the opening had previously been sealed with resin, but the substance likely deteriorated after being exposed to the heat from the melted fuel and salt from sea water poured into the vessels immediately after the disaster to cool down the chamber.

Technicians are now planning to locate the racks in the containment vessel and seal them, TEPCO said. [DO NOT use the same type of resin!!! Editor.]

Once they have sealed the cracks, they can refill the vessel with water and remove the melted fuel, at least in theory.

However, they cannot enter the reactor building without being exposed to cosmic levels of radiation.

On October 18, 2013 FIRE-EARTH said [and Google/Wordpress censored]: Fukushima Potentially More Disastrous Than Hiroshima

On November 7, 2013 FIRE-EARTH said [and Google/Wordpress censored]: Scale of potential catastrophe at Fukushima could dwarf a limited nuclear war.

Related Links

For additional links to the ongoing nuclear disaster at Fukushima, search blog content.

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“Radioactive River” Flowing at Fukushima No. 3 Reactor

Posted by feww on January 20, 2014

NOTE: At least two of the links posted below have previously been censored by Google/WordPress

ONGOING NUCLEAR DISASTER
.

Stream of radioactive water 30-cm wide continuously flowing at Reactor No.3

The plant operator, Tokyo Electric Power Company (TEPCO), says the radioactive water leaking from the number 3 reactor building is most probably coming from the containment vessel.

A camera installed on a robot took a video of the radioactive stream on the first floor of the reactor building on Saturday. The stream, 30cm wide, is continuously flowing into a drain, said TEPCO.

radioactive stream at fukushima reacto no 3
“Radiactive River” at Fukushima Reactor No. 3. Source: Screenshot from TEPCO video broadcast by NHK.

Technicians have detected 24 million becquerels per liter of beta ray-emitting radioactive substances, including strontium, as well as 1.7 million becquerels per liter of Cesium 137, TEPCO said in a statement.

That level of contamination is almost as high as the radioactive materials in the water that has been accumulating in the basement of reactor building.

The water temperature is about 20ºC, which matches the temperature of the water at the bottom of the reactor [containment vessel,] said TEPCO.

TEPCO officials believe the water for cooling melted fuel in the containment vessel is leaking for reason that are unknown to them. [Try cracks in the containment vessel. Editor]

The company said they will continue with their investigation until they get to the bottom of it (!)

On November 7, 2013 FIRE-EARTH said [and Google/Wordpress censored]:

Scale of potential catastrophe at Fukushima could dwarf a limited nuclear war.

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Japan nuclear disaster to last nine more months

Posted by feww on April 17, 2011

NEW LEAKS MAY BE RAISING RADIATION in SEA

Nuclear disaster at Fukushima Dai-ichi nuclear power plant may continue for another nine months: TEPCO

Tokyo Electric Power Company, the operator of Japan’s stricken nuclear power plant Fukushima Dai-ichi says it planned to reduce radiation leaks in 3 months and to cool the reactors within another six months, NHK reported. 

“This is the biggest crisis since the founding of our company,” TEPCO Chairman Tsunehisa Katsumata said at a a news conference.

“Getting the nuclear plant under control, and the financial problems associated with that.” He added

“How we can overcome these problems is a difficult matter.”

The conference was broadcast by NHK amid reports that radiation levels in the seawater near Reactor 2 had risen to 6,500 times the legal limit on Friday, about 6 times higher than Thursday’s reading. TEPCO fears that the rise may be due to new leaks.

On April 12, Japanese authorities raised the measure of severity of the Fukushima NPP disaster to the maximum level of 7 on INES. (See below for details.)

The International Nuclear and Radiological Event Scale (INES)

The INES, a logarithmic scale, which was introduced in 1990 by the IAEA to enable prompt communication, classifies the intensity of nuclear incidents as follows:

7 – Major Accident [Chernobyl disaster, criticality accident, April 1986]

6 – Serious Accident [e.g., Kyshtym incident, Mayak, former Soviet Union, steam explosion released up to 80 tons of highly radioactive material into the atmosphere, September 1957. ]

5 – Accident With Wider Consequences [e.g., Three Mile Island accident  Pen State, U.S., partial meltdown release radioactive gases  into the environment, March 1979.]

4 – Accident With Local Consequences [e.g., Sellafield, UK, at least 5 incidents reported between 1955 to 1979]

3 – Serious Incident [e.g., Vandellos NPP, Spain, fire destroyed control systems; the reactor was shut down, July1989]

2 – Incident [e.g., Forsmark NPP, Sweden, a backup generator failed, July 2006]

1 – Anomaly [e.g., TNPC, France, 1,600 gallons of water containing 75 kilograms (170 lb) of uranium leaked into the environment,  July 2008]

0 – Deviation (No Safety Significance) [e.g., Atucha, Argentina – Reactor shutdown caused by tritium increase in reactor encasement, December 2006.]

Probability of a Nuclear Disaster by Country

THIS SECTION HAS BEEN REVISED AND POSTED AT

Probability of a Nuclear Disaster – by Country

on April 18, 2011

Notes:

  1. The list represents a snapshot of events at the time of calculating the probabilities. Any forecast posted  here is subject to numerous variable factors.
  2. Figures in the bracket represent the probability of an incident occurring out of 1,000; the forecast duration is valid for the next 50  months.
  3. Probability includes a significant worsening of Fukushima nuclear disaster, and future quakes forecast for Japan.
  4. A nuclear incident is defined as a level 5 (Accident With Wider Consequences), or worse, on the International Nuclear and Radiological Event Scale (INES). See below.
  5. Safety issues considered in compiling these lists include the age, number of units and capacity of nuclear reactors in each country/state, previous incidents, probability of damage from human-enhanced natural disasters, e.g., earthquakes, tsunamis, volcanic activity, hurricanes, tornadoes, storms, wildfires, flooding… ]
  6. The  Blog’s knowledge concerning the extent to which the factors described in (3) might worsen during the forecast period greatly influences the forecast.

Japan’s Triple Disaster: Human Cost

  • Official Death Toll: ~ 14,000
  • Missing:  ~ 14,000
  • Homeless: At least 155,000
  • Others: In addition to the above, an unknown number of people in remote areas may have perished, but no records are available as of posting.

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