Star-viking comments

Posted in: Japan nuclear regulator says restart approval pace unlikely to speed up See in context

cucashopboy

Star-viking - maybe so, but the whole of Japan's coast is vulnerable to large tsunamis and TEPCO persisently ignored the possibility of similar size tsunami waves occasionally hitting the east coast, which led to the current mess.

First, the lessons of the Fukushima accident have been learned. New rules require plants to be safe from predicted tsunamis.

Secondly, TEPCO didn't ignore the possibility of large tsunamis hitting the Pacfic coast of Tohoku - they were investigating that possibility when the tsunami occured.

albaleo

Sorry, I used "facing" in the sense of 'looking in the direction of'. Ikata is on a peninsula, and the plant is on the Seto Inland Sea side, so it doesn't face the tsunami, and will not see large waves.

About wave heights, tsunamis cause damage because when they get close to the shore the lower depth of the water causes the waves to slow down and increase in height. This is called "wave shoaling". That's why we saw that long, thin wavefront at sea on the 11th of March 2011, but such massive devastation on land. Estimates of potential wave heights on land are useful for protecting places from the effects of tsunamis and planning evactuations.

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Posted in: Japan nuclear regulator says restart approval pace unlikely to speed up See in context

GoodlucktoyouToday

its predicted shortly a massive earthquake will happen caused by the 3 tectonic plates event. tsunamis of over 30 meters are predicted by EXPERTS. Just how many have sea walls prepared from the meltdowns caused by the earthquake?

The only plant facing a Nankai Trough tsunami is the Hamaoka Plant. The building have been waterproofed, and a 22-metre tall tsunami wall has alos been constructed. The experts predict a maximum tsunami height of 34 metres in Kochi, almost 500 km from the Hamoka Plant.

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Posted in: Koike asks Gore to tell world about Tokyo's anti-climate change efforts See in context

Stepoutsidethebox,

If you consider how much petrol the cars in the world use, how big must these 10 ship's fuel tanks be? How large must their engines be to burn all that fuel and produce all that CO2? 10 ships producing as much polution as, for argument's sake, 100 million cars. So each ship's engine would be around the size of 10 million car engines - which would be very, very big, around 300,000 cubic metres.

Where are these monster ships?

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Posted in: TEPCO gets 1st approval to restart reactors since 2011 disaster See in context

Nuclear regulstion authorities of Japan still avoid investigation about evacuation plans.

Really? Maybe because they're a largely-invented requirement.

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Posted in: TEPCO reactors' safety clearance irks Fukushima victims See in context

The reactors passed technical safety reviews. Whilst the complainants may have justifiable grudges against TEPCO (But oddly not against anyone else involved in nuclear safety as it seems) they appear to have zero qualifications in the subject at hand.

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Posted in: TEPCO gets 1st approval to restart reactors since 2011 disaster See in context

Disillusioned

Allow me to correct this statement: The Japanese utility who was proven to have falsified records of safety upgrades, which caused the Fukushima nuclear plant meltdowns.

Got a reference for falsified records of safety upgrades causing the meltdowns?

Please tell me how restarting reactors that are approaching 40 years old is safe. Furthermore. please tell me which part of Japan is safe from strong earthquakes. And, while you're at it, please tell me which part of the Japanese coastline is safe from tsunamis.

As long as the structure and systems of the reactor meet the standards for safe operation, they are safe. As for earthquakes, NPPs are built to resist them, and no major accident has been caused by an earthquake. Tsunamis? The safety updates counter those.

Even if Japan does achieve their goal of 20% of their electricity coming from nuclear sources, this does not mean Japan will cut their CO2 emissions by 20%, so their goes your global climate argument. 

That's pretty poor comparison. Japan having 20% of their electricity coming from a low carbon source will still have a big effect. It won't stop global warming, but it'll be better than turning on those 40 coal plants that are building/planned.

sf2k,

Then add geothermal, add solar thermal, add all the thermals before you even get to solar panels and you have an interesting mix of renewable energy systems. If you want to store the energy you can use molten salt as other countries have done.

Current easily-accessible geothermal is around 1-2 GW - the two reactors in this article put out more power than that.

Japan, with its premium on flat land, cloud cover, and earthquakes, is unsuited to solar thermal - which requires flat land and reliable sunlight.

Other thermal actually means burning fossil fuels or biomass - they're called thermal power stations.

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Posted in: Energy revolution underway in Japan as dozens of towns go off the grid See in context

The headline tells us that "dozens of towns go off the grid", the only example we get is one city that gets around 25% of its energy off grid on average.

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Posted in: TEPCO says Fukushima plant worker exposed to small radiation dose See in context

> Not quite. From a news report at the time:

The Nuclear Regulation Authority said the worker with the higher reading has been exposed to an extreme amount of radiation and the situation is considered grave. While none of the workers have complained of health problems so far, an official with the facility’s operator said it “cannot rule out the possibility of future health effects.”

But further investigation found errors in the readings due to radioactive particles adhering to the surface of the detection device.

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Posted in: TEPCO's reactors soon to clear major safety hurdle to restart See in context

HI Daito,

A few comments and questions on your detailed post.

1) The Daiichi plant was built by lowering the land since this reduced the cost to build the pipe system from and towards the plan to the sea. This decision was made ignoring the seismologists and other nuclear experts recommendations.

You seem to be mixing up two site-building decisions: One, to lower the ground level so the plant could be built on bedrock, which is recommended for nuclear plants, as it eliminates soil liquidfication as a problem. Two, the coast at the Daiichi site had a cliff. A decision was made, in the mid-60s, to remove the cliff so that a simple and reliable pumping path could be used.

2) It was discovered in 2002 that TEPCO failed to accurately report cracks at its nuclear reactors in the late 1980s and 1990s, basically the cover up lasted for decades. A list of 29 cases of cover-ups of cracks on the core of 13 nuclear reactors, at three plants were established. None of the people responsible for this serious criminal act was brought to justice. The Japanese nuclear industry and the corruption involved with the Japanese government made sure that nobody would pay for it.

True, and also true is the fact that the cracks were not hazardous.

3) At some point during the late 90's early 00's, TEPCO decided to move the back-up diesel engines at Fukushima Daiichi underground in the turbine building. This is a decision which turned out to be critical for the accident in the plant because the engines were immediately flooded by the water and all back-ups were immediately gone after the tsunami hit the plant. This decision was made without any real concertation with independent nuclear experts. Back then the governmental safety Japans nuclear agencies were just useless and they were totally corrupted by the nuclear and power companies.

First time I've heard this. Do you have a reference?

5) Seismologists have warmed for years the Japanese government and the nuclear industry based on very detailed scientific research that a giant tsunami would hit the plant and that nothing is in place to protect it. Instead, it was argued by the nuclear industry AND the government that a tsunami higher than 10 meters would never hit the plant.

And yet the same seismologists somehow forgot to warn the municipalities on the Pacific coast of Tohoku? How could they overlook that? More to that story than meets the eye.

And also, TEPCO was investigating reports from early 2000 of a recurrent tsunami in the wider gerographical area, and was investigating. They had also raised the tusnami defences significantly when new threats were brought to light.

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Posted in: U.S. warship stayed on deadly collision course despite warning, says container ship captain See in context

Another factor is that when ships are running close to each other, as in a badly-judged overtaking manouvre, pressure changes can "suck" on the ships, changing a parallel course into a collision course.

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Posted in: 5 workers exposed to radioactive materials at Ibaraki nuclear facility See in context

The Japan Atomic Energy Agency said up to 24 becquerels of radioactive materials were found inside the noses of three of the workers, prompting the agency to check whether they face the danger of internal exposure to radiation.

The normal radioactivity of an adult human is 7000 Bq, so they found around a third of one percent of that.

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Posted in: Man gets life in prison for murder of 17-year-old girl See in context

Whilst I understand the parents' disappointment, the fact is that this monster wanted to get the death penalty. You should never, never give these people what they want, to discourage any others with similar thoughts.

Let him rot in a cell.

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Posted in: 2 more nuclear reactors in Japan clear regulator's safety review See in context

Hi Jose,

 Word from a physicist working with radiation. No to nuclear power. Period.

What is your radiation research topic?

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Posted in: Armed forces to be deployed to key sites in Britain after Manchester suicide bombing See in context

kurisupisu,

When does a moderate Muslim become a radical Muslim hell bent on death and destruction?

Is there a transition?

When and how does that occur?

It happens more when the community they come from are told they are "suspect", and that they must be monitored.

It happens when parties and movements start demonizing immigrants.

It happens when people get told to go home, when they are already "home".

It stops when people are not treated as to be feared because they are different. It stops when people stirring hate are told to eff-off by the everyday people on the street.

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Posted in: Kansai Electric restarts reactor at Takahama nuclear plant See in context

Zichi,

France limits reactor life extensions to 10 years. There are also the reactors with high carbon steel like the Takahama No 2.

France does that, but that is solely a political decision, they were originally talking about 20 years, but the Greens had to be assuaged.

For electrical cables, basic information is lacking regarding the roles of prolonged exposure to moisture, radiation, temperature, mechanical stress, and electrical elds on the properties of the polymeric insulation. The general in uence of the complex residual stress states associated with structural material joining operations on stress corrosion cracking (including radiation-induced stress relaxation and ow localization phenomena) is not well understood. 

Thanks for the report. Looks like a good read. It is, however, concerned with plants being relicenced for operation beyond 60 years, not reclicenced for operation beyond 40 years, which what my post was about

The regulations here are set by the NRA, each country has different standards.

Yup.

Everyone involved with nuclear energy, everyone in the nuclear village had stated for decades, that nuclear energy was safe and that a nuclear disaster could never happen.

Nope.

The Fukushima nuclear disaster which the Diet investigation and others called manmade which TEPCO also agreed it was could have been avoided if the correct safety standards and procedures had been in place and today we wouldn’t be having these conversations. 

Well of course they had to call it manmade. All the blame had to be dropped at TEPCO's feet. If there was more deeper investigations questions would have had to been asked, like "Who was supposed to be monitoring the threat to Tohoku?" and "Was the threat even predictable?"

The was a lack of serious safety standards which I found shocking because I had assumed those dangerous plants like others would be operated at the highest safety standards even beyond those required by regulations. But they were not.

Pretty hard to regulate against a largely unknown threat. It took everyone in Tohoku by surprise. Still, passive hydrogen recombiners should have been mandated - but that is not just a fault of TEPCO. Also, PM Kan should have offered help and not interference.

Not even the simplest of procedures were in place.

For example?

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Posted in: Kansai Electric restarts reactor at Takahama nuclear plant See in context

Zichi,

The embrittlement problem has been the subject of contuous study since the 50s. Reactors are checked, and test samples are exposed to reactor radiation levels to give data on the progression of embrittlement. Reactors were licenced for 30 to 40 years, but embrittlement data has show it is safe in many cases to relicence reactors for at least 20 more years.

As to the replacement of cabling and pipework, the NRC's "General Environmental Impact Statement for License Renewal of Nuclear Plants" gives percentages of 30% cabling replacement and 20% of piping.

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Posted in: Japan may become 4.5 C hotter if no anti-global warming steps taken See in context

Melissa,

He is an ex-newspaper reporter who publishes on conspiracy theory websites. The scientific paper he claims as the cornerstone of his article contradicts his claim.

His facts are rubbish.

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Posted in: Japan favors Aegis Ashore over THAAD to boost missile defense See in context

Hi Triring,

"It can and most likely shoot down enemy satellites for communication and observation. The SM-3 BlkⅡA"

When the USN shot down the satellite with the SM-3, it was one in low-Earth orbit, and the USN ship had to place itself directly under the satellite's path to shoot it down. That indictates that AEGIS Ashore will only be able to shoot down low-orbit satellites which pass directly overhead.

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Posted in: Japan may become 4.5 C hotter if no anti-global warming steps taken See in context

Hi Melissa,

I'm afraid your paper comes from a conspiracy site: rense.com

If you check the contributions of the author, Yoichi Shimatsu, you'll see strange articles about satanic child-porn rings at MIT murdering MIT students, the CIA killing Kim-Yon Nam, Malaysian Airlines Flight 17 being sabotaged by the Israeilis (Rense is anti-semitic), and other crazy stuff.

However, if you check figure 4 in the Nature scientific paper which was his first reference, you'll see that the Arctic Ozone decine in 2011 started in early February - almost two months before the Fukushima accident.

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Posted in: Would you be willing to eat agricultural products from Fukushima Prefecture? See in context

I already do. Lots of nice fruit and veg from Fukushima.

And to echo 5SpeedRacer5, Japan Today should stop stirring conrtoversy over Fukushima.

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Posted in: Japan may become 4.5 C hotter if no anti-global warming steps taken See in context

Melissa, please explain how tritium causes global warming.

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Posted in: Organic thin-film PV cells used to create power-generating window See in context

3 Wh of electricity means that if you have 30 of these windows, it can run one bar of an electrical heater for one hour a day...

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Posted in: TEPCO spots possible nuclear fuel debris beneath Fukushima reactor See in context

Hi Aly,

Japan's death rates can be found on the website of the Statistics Japan website. Most data is given by excel spreadsheet, and the latest for death rates is: http://www.stat.go.jp/data/nenkan/65nenkan/zuhyou/y650226000.xls

That gives the death rate per 1000 for 50-54 year-olds as 3.5, so you're correct that it is not a massive chance, but it's not unexpected either.

The only one of the Fukushima Fifty who I recall dying was Plant Manager Masao Yoshida, who was a heavy smoker. He died from throat cancer, a common disease of smokers.

However, NHK itself has acknowledged that there is a spike in the amount of thyroid radiation in evacuees. Logic does dictate that this due to the disaster.

NHK is not a reliable scientific source. Here's some letters from researchers to the journal Epidemiology, in response to a poorly undertaken study by Toshihide Tsuda.

We recently conducted thyroid ultrasound screening, using the same procedures as the Fukushima Health Management Survey, in 4,365 children aged 3–18 years from three Japanese prefectures, and confirmed one patient with papillary thyroid cancer (prevalence, 230 per million).2 Furthermore, we recently reviewed findings of thyroid ultrasound screening conducted in Japan.3 In one survey, 9,988 students underwent thyroid screening and four students (including one foreign student) were subsequently diagnosed with thyroid cancer (prevalence, 300 per million). In another study at Okayama University that examined 2,307 students, three patients with thyroid cancer were found (prevalence, 1,300 per million), while at Keio High School, of 2,868 female students examined, one was found to have thyroid cancer (prevalence, 350 per million). These results show that the prevalence of thyroid cancer detected by advanced ultrasound techniques in other areas of Japan does not differ meaningfully from that in Fukushima Prefecture.

http://journals.lww.com/epidem/Fulltext/2016/05000/Re___Thyroid_Cancer_Among_Young_People_in.31.aspx

I must, therefore, concur with Dr. Davis that “these findings do not add anything new regarding radiation-induced thyroid cancer.” But I would further add that publishing studies that use ecologic study designs without acknowledging the issue of ecologic fallacy is a disservice to the people of Fukushima, who have already suffered greatly and do not need the added burden of groundless worry about their risk of thyroid cancer—a risk level that most epidemiologists would consider very small, notwithstanding the Tsuda study.

http://journals.lww.com/epidem/Fulltext/2016/05000/Re___Thyroid_Cancer_Among_Young_People_in.30.aspx

Tsuda et al.1 evaluated the prevalence of thyroid cancer among children and adolescents after the Fukushima accident in zones of different level of radiation contamination. Based on the numbers in their Table 1, I calculated the means of thyroid cancer prevalence in three zones of radiation contamination (low, middle, high); the least contaminated area (Northeastern, Western, Southeastern, Iwaki City), the combined four districts with intermediate contamination (North middle, Central middle, Koriyama City, South middle), and the nearest area to the crippled reactor (Fig.). The error bars in the Figure indicate 95% confidence intervals. It is hard to see any association of thyroid cancer prevalence with radiation contamination. This makes it difficult to accept that radiation has caused an increase of thyroid cancer among children and adolescents in Fukushima Prefecture during 2011–2014.

http://journals.lww.com/epidem/Fulltext/2016/05000/Re___Thyroid_Cancer_Among_Young_People_in.32.aspx

All these quotes are from scientific researchers, some anti-nuclear, commenting on claims of a thyroid cancer epedemic in Fukushima. More comments can be found in the letters section at: http://journals.lww.com/epidem/toc/2016/05000

I hope you find them helpful.

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Posted in: TEPCO spots possible nuclear fuel debris beneath Fukushima reactor See in context

Aly,

On the other hand: http://www.who.int/ionizingradiation/ae/fukushima/faqs-fukushima/en/

AGAIN your link DOESN'T work. Page doesn't exist. Just like the facts you present.

In less than 5 seconds I found the page. Corrected URL is:

http://www.who.int/ionizing_radiation/a_e/fukushima/faqs-fukushima/en/

There were no acute radiation injuries or deaths among the workers or the public due to exposure to radiation resulting from the FDNPS accident.

Yes there were. Some of the fukushima 50 are now dead.

Take any group of 50 middle-aged men. Chances are that after 5 years some will have died.

OF COURSE TEPCO's stupid line is we can't prove that the sudden spike in thyroid cancer has something to do with it, but any rational person knows that's the case.

WHO says:

There have been recent reports about thyroid cancer cases being diagnosed among children exposed to low doses of radioactive iodine as a result of the Fukushima accident. These reports should be interpreted with caution.... the highly-sensitive thyroid screening of those under 18 years old at the time of the accident is expected to detect a large number of thyroid cysts and solid nodules, including a number of thyroid cancers that would not have been detected without such intensive screening. Similar or even slightly higher rates of cysts and nodules were found in prefectures not affected by the nuclear accident.

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Posted in: Power failures and other problems do not necessarily result in disaster, and some people become unwell or suffer from worsened medical symptoms during evacuation. See in context

No problem Borscht.

You're totally correct that things were worse because of the rushed nature of the evacuation. An orderly evacuation would be better, but there would still be problems with making sure the patients recieved appropriate care at their destinations, and problems for those where evening moving them could worsen their conditions.

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Posted in: Power failures and other problems do not necessarily result in disaster, and some people become unwell or suffer from worsened medical symptoms during evacuation. See in context

Borscht,

I do think you are reading his intent wrong. About evacuation, he is probably referring to the large number of senior citizens whose conditions worsened when they were hastily moved from their hospital beds during the Fukushima accident. As for his comment about power failures and other problems - that was probably in reference to Daini's SFP3 losing cooling for a little over an hour in the recent quake off Fukushima.

-1 ( +0 / -1 )

Posted in: M7.4 quake strikes off Fukushima, triggering tsunami See in context

papaguilo,

Wasn't Tohoku also hit by a 7.3 a few days before the big one? Now I don't want to fear-monger but perhaps its time to prepare those emergency kits, like now.

No, the big one came out of the blue. We had a large aftershock a month later though, which is probably what you are thinking about.

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Posted in: The weird and wonderful things people leave behind on Japanese trains See in context

Sensei258

I once found a man's wallet loaded (yes I looked) with 150,000 yen, suica card, credit cards, drivers license etc etc on the floor of the train just after it arrived in Hachioji. I held it up as I walked to the service desk to turn it in. I stood nearby to watch as an older man claimed it. The fist thing he did was open it and check the money.

If you hand it in to the police you can get a percentage of the money in the wallet as a finder's fee.

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Posted in: Woman attacked by man as she walks home See in context

How did she get broken ribs if he hit her on the head with a rock?

She was on a bridge - probably fell or forcefully pushed against the railings.

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Posted in: I want you to renounce the belief that nuclear plants are safe. See in context

Governor Mitazono,

I want you to renounce the belief that Kagoshima City is safe.

I want you to renounce the belief that news pundits can pronounce verdicts on areas their education is lacking in.

-4 ( +1 / -5 )

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