Day 351 Henry, a year later and there’s STILL a hole in the bucket???

3.1×10E11 Bq/m3 of cesium leaked from the water purifying system

Posted by Mochizuki on February 25th, 2012
On 2/25/2012 8:30AM, A Tepco employee found high level of contaminated water leaking from water purifying system called Sally.

It’s 3.1×10E11 Bq/m3. Tepco asserts it’s only 10 L to leak, none of it has leaked to the sea for some reason.

The leaking point is the joint part to filter out oil before taking out cesium. The reason is not detected yet.

Also, Tepco found ERSS, which is to calculate the leakage amount of radionuclides from daini reactor4 stopped.
They stopped it at 2PM of 2/14 for a check up. They were supposed to turn it back on at 2:50 PM of 2/24 but they forgot to turn it on.

Source

福島第1原発:高濃度汚染水漏れる 海への漏えいはなし

東京電力は25日、福島第1原発の汚染水処理施設にある放射性セシウム除去装置「サリー」の配管から高濃度汚染水約10リットルが漏れたと発表した。漏えい水の濃度は1立方センチ当たり31万ベクレルで、海への漏えいはなかった。

漏えい場所は汚染水から放射性セシウムを除去する前に油分を取り除く装置の配管接続部。同日午前8時半に見回りをしていた作業員が見つけ、装置の運転を止めたところ、漏えいが止まった。東電が原因を調べている。

また、東電は同日、福島第2原発4号機で、放射性物質の放出量予測などに利用される「緊急時対策支援システム」(ERSS)に一時的にデータが送信できない状態になっていたと発表した。東電は計算機の機能を確認するため、2月14日午後2時過ぎから同24日午後2時50分までERSSを停止。その後、計算機を復旧させたが、東電社員はERSSの電源を入れ忘れたという。【神保圭作】

毎日新聞 2012年2月25日 19時43分(最終更新 2月25日 19時57分)

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Report from Tokyo: 6.5 microSv/h at Japan’s busiest train station — Equal to 57 millisieverts per year, 10 times Chernobyl evacuation levels — Near Imperial Palace (PHOTOS)

http://enenews.com/report-6-5-microsvh-at-japans-busiest-train-station-equal-to-57-millisieverts-per-year-10-times-chernobyl-evacuation-levels-near-imperial-palace-photos

Follow-up to:

Title: Tokyo station is contaminated as mandatory evacuating zone in Fukushima
Source: Fukushima Diary
Date: Feb 25, 2012

On 2/21~23/2012, a Twitter user measured radiation level at Tokyo station and it turned out to be 2.94~6.5 microSv/h. […]

1m height from the ground : 6.5~4.8 microSv/h

1.8m height from the ground : 3.0~4.2 microSv/h

The reason of this high level of contamination is assumed to be because hot particles are brought from Fukushima or North Japan by the shoes of passengers.

SOURCES:

Aisle from Yaesuguchi underground parking lot to underground mall of Tokyo Station (SOURCE: ytoexhd)

On the platform of Tokaido Shinkansen (SOURCE: ytoexhd)

Title: Twitter / @ytoexhd: @bien1321 この線量計は計測開始から終了まで …

@bien1321 This dosimeter to detect γ-rays every 10 seconds in about 5 minutes from start to finish measurement. 6.5μ ~ 4.8μSv 1m3 times height measurements. Was 3.0μ ~ 4.2μSv 1.8m3 times height measurements. The image is part of a total of six times.

6.5 microSv/hr * 24 hr/day * 365 day/yr = 56,940 microSv/yr

Via ABC Australia: “After Chernobyl anyone likely to be exposed to more than 5 millisieverts a year was evacuated, and those in areas of 1-5 mSv were offered relocation and bans were placed on eating locally produced food.”

Title: Tōkaidō Shinkansen
Source: Wikipedia

The Tōkaidō Shinkansen (東海道新幹線?) is a Japanese high-speed Shinkansen line, opened in 1964 between Tokyo and Shin-Ōsaka. It is operated by the Central Japan Railway Company (JR Central), and formerly by Japanese National Railways (JNR). It is the most heavily travelled high-speed rail route in the world by far

Title: Tōkyō Station
Source: Wikipedia

Tokyo Station (東京駅 Tōkyō-eki?) is a railway station in the Marunouchi business district of Chiyoda, Tokyo, Japan, near the Imperial Palace grounds and the Ginza commercial district.

It is the main intercity rail terminal in Tokyo, the busiest station in Japan in terms of number of trains per day (over 3,000), and the fifth-busiest in Eastern Japan in terms of passenger throughput. […]

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500 Used Cars to Be Shipped from Nagoya Port Have Exceeded Radiation Limit Since August Last Year

That’s when they started testing, and 500 used cars from Nagoya Port alone.

Japanese used cars are popular in Russia, Southeast Asia, and Africa. Despite the nuclear accident, the number of exported used cars in 2011 increased slightly over 2010 to 857,779 cars according to the Used Car Export Industry News, with Russia at the top with over 110K followed by the United Arab Emirates.

Kyodo News (2/25/2012):

名古屋港管理組合は25日、同港から船積み予定の中古車を対象とした放射性物質検査で、昨年8月~今年1月、500台を超える車から、業界が設定した基準の毎時0・3マイクロシーベルト以上が検出され、荷主に返したことを明らかにした。

Nagoya Port Authority disclosed on February 25 that 500 used cars were found with radiation levels at or exceeding 0.3 microsievert/hour, the standard set by the [used car] industry from August last year to January this year, and that the cars were returned to the shippers.

国内外へ輸送される予定だった。同組合は、荷主に返した車のその後の流通状況を確認していない。

The used cars were to be exported outside Japan or to be transported to different parts of Japan. Nagoya Port Authority does not keep track of the cars returned to the shippers.

同組合によると、東京電力福島第1原発事故を受け、日本港運協会と全国港湾労働組合連合会などが労働者の安全確保を目的に、0・3マイクロシーベルトなどの基準を設け、各地の港湾で昨年8月から線量測定が実施されている。

According to Nagoya Port Authority, 0.3 microsievert/hour standard was set by the Japan Harbor Transportation Association and All Japan Dockworkers’ Union (JDU) to secure the safety of the dockworkers. The radiation testing has been done at ports in Japan since August last year.

Isn’t that nice that 0.3 microsievert/hour is not for the safety of the buyers of the cars but for the dockworkers handling the cars and loading them?

It is also nice to know that the radiation levels of the used cars are measured ONLY IF the cars are transported from a port by ships. There is no testing at all if used cars are transported by land within Japan.

The earliest news I caught on this blog of radioactive used cars is from NHK News on April 24, 2011 when Russian authorities in the port of Nakhodka in Siberian Russia found 2 used cars emitting high radiation. The cars came from Niigata Port on April 16, and they were originally from Fukushima Prefecture.

Before the NHK news, there were “rumors” that were officially dismissed. One of the rumors on blogs and tweets that I heard was almost exactly what got finally reported by NHK, that there were many used cars exported from Japan after March 11, 2011 accident that are emitting very high radiation.

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NHK shows first aerial footage of Fukushima plant

http://www3.nhk.or.jp/daily/english/20120226_13.html

An NHK helicopter has flown near the stricken Fukushima Daiichi nuclear power plant for the first time since the accident occurred last March. The flight took place after the no-fly zone over the plant was reduced to a 3-kilometer radius.

NHK shot footage around 4 kilometers from the plant at an altitude of some 700 meters on Sunday.

The land ministry decided to scale back the no-fly zone from the 20-kilometer radius as it calculated that aerial radioactive readings around the plant had dropped to a safe level. The 3-kilometer radius took effect on Saturday.

The aerial observation confirmed that the No. 3 reactor building has an exposed steel structure distorted by a hydrogen explosion.

The yellow lid on the nuclear containment vessel was visible in the No. 4 reactor building in which a hydrogen explosion ripped out its walls. A person in a yellow work suit was seen walking on the 5th-story of the building.

At a port used by the plant, some 10 workers wearing white protective suits were on a crane vessel working to cover the seabed with cement to block radioactive substances from spreading offshore.

Water leakage from pumps and piping has been reported since February even though the government declared in December that the Fukushima plant was stabilized.

Some 1,000 steel tanks to store contaminated water could be seen at the western part of the plant’s compound, showing the daunting task of disposing of water.

Sunday, February 26, 2012 15:02 +0900 (JST)

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Many hospitals in quake-hit areas ill-equipped to meet patients’ needs

http://english.kyodonews.jp/news/2012/02/143801.html

SENDAI, Feb. 26, Kyodo

Seventeen of 45 major hospitals in coastal areas of the three prefectures hit hard by the March 2011 earthquake and tsunami are still being forced to curtail the range of their services compared with predisaster levels because they remain understaffed, a Kyodo News survey showed Sunday.

Of the 17 hospitals in Iwate, Miyagi and Fukushima prefectures, four in Fukushima Prefecture remain closed and are unlikely to reopen anytime soon, according to the survey. Some hospitals have run into financial difficulties as they have lost some of their medical staff and patients.

Twelve hospitals reported declines in the number of doctors and seven said they had lost some of their nurses. Fourteen said they had fewer beds for inpatients and nine said they had scaled down operations by treating a narrower range of illnesses, suspending inpatient admissions or halting nighttime emergency services.

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Radiation still high around Fukushima No. 1

Kyodo

High levels of radiation, including a rate of 470 millisieverts per year at one location, have been detected in municipalities near the Fukushima No. 1 nuclear power plant, according to an interim Environment Ministry report.

News photo
Getting a reading: Snow covers a radiation-measuring device on the campus of Fukushima University on Saturday. KYODO

A survey conducted from Nov. 7 to Jan. 16 showed that the readings topped 50 millisieverts on an annual basis — a level deemed uninhabitable under a proposed new classification — in many spots north-northwest of the crippled power station.

The highest level of 470 millisieverts was logged northwest of the plant at a spot in Futaba, Fukushima Prefecture, while the lowest level of 5.8 millisieverts was detected in another part of the same town, the ministry said.

The results were similar to those of an earlier science ministry survey that used aircraft. The Environment Ministry plans to compile a final report on the survey by the end of March.

The government will use the data to reclassify the exclusion zone and the zone where people have been on evacuation alert into three categories in April.

The first category will be uninhabitable areas with annual radiation levels of 50 millisieverts or more.

The second will cover areas with levels between 20 and 50 millisieverts where access will be limited.

The third will designate areas with levels below 20 millisieverts where residents will be allowed to return in stages.

Meanwhile, the Environment Ministry said that high levels of radioactive cesium have been detected in ash and firewood in eight prefectures in the Tohoku and Kanto regions, with the highest reading — 240,000 becquerels per kilogram — measured in ash from a household in Minamisoma, Fukushima Prefecture.

The survey on ash and firewood from 65 households also found a reading of 163,000 becquerels of cesium in ash from a household in Kawamata, Fukushima Prefecture.

Under current regulations, waste with radiation levels exceeding 100,000 becquerels must be kept at a disposal site and sealed with reinforced concrete to keep out rainwater.

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JP Gov has no technology to decommission a nuclear reactor

Posted by Mochizuki on February 25th, 2012

Japanese government and Tepco have started publicly seeking technology to decommission nuclear reactors such as decontamination of the reactor buildings and remote controlling robot.
They will accept offers until 3/9/2012.
Toshiba, Hitachi GE nuclear energy and Mitsubishi heavy industries are already supported by the government to develop the decommissioning technology, but they are still needing related technology from small and middle sized companies.

Tepco and Japanese government are planning to fix the container vissels by 2014 ~ 2012, and start picking up the melted fuel. However, they have turned out to have no technology to realize the plan.

Source

福島第1原発の廃炉技術公募 政府と東電
2012/2/24 20:58

政府と東京電力は24日、福島第1原子力発電所の原子炉の廃炉へ向け企業からの技術公募を始めた。原子炉建屋内の除染やロボットの遠隔操作などの技術をテーマに同日、官民のワークショップを経済産業省内で開き応募を呼びかけた。3月9日まで受け付ける。

東芝、日立GEニュークリア・エナジー、三菱重工業の3社は既に国の支援を受けて廃炉技術の研究開発を始めている。関連技術を中小企業などからも広く募る。具体的には除染技術や破損した原子炉格納容器の補修、ロボットの遠隔操作などの技術を求めている。

政府と東電が策定した廃炉への中長期の工程表では2014~21年に格納容器を補修し、溶融燃料の取り出しにも着手するとしている。

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