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Spent Fuel Pools

Steam still coming up from reactor3 at 13:00 JST / Tepco prepared to inject boric acid

Following up this article..[Breaking] Tepco “Steam / Gas coming up from the top of reactor3, ambient dose and dust not verified” [URL] At 15:00, Tepco updated the plant state of

Plant hazard

[Breaking] Tepco “Steam / Gas coming up from the top of reactor3, ambient dose and dust not verified”

According to Tepco, steam / gas was observed on the top of reactor3. At 8:20 AM of 7/18/2013, a subcontract worker found steam / gas coming up from the middle

Core removing struggle Plant hazard

Xe-133/135 detected from gas sample of reactor1,2,3, amount not announced, Tepco “Spontaneous fission”

Related to this article..Ag-110m detected from gas sample of reactor1 and 3, “The boiling point is 2,164℃” [URL] From the analysis of PCV gas sampling, Tepco announced they detected Xe-133/135

Core removing struggle

Co-60, corrosion product detected from gas samples of reactor1, 2 and 3

Related to this article..Ag-110m detected from gas sample of reactor1 and 3, “The boiling point is 2,164℃” [URL] According to Tepco, they also detected Co-60 from the gas samples of

Core removing struggle

Ag-110m detected from gas sample of reactor1 and 3, “The boiling point is 2,164℃”

According to Tepco, radioactive silver, Ag-110m was detected from air sample of the PCV of reactor1 and 3. From late April to mid May in 2013, Tepco analyzed the PCV

Cover-ups Plant hazard

Fukushima worker found a trace of gas oil dripped on the road of the plant

A Tepco employee found a trace of gas oil dripped on the road. We are concerned about their discharge of contaminated water and the soundness of reactors but this could

Uncategorized

Suspension of reactor3 gas control system

On 1/29/2013, Tepco stopped the gas control system of reactor3 due to the partial pipe replacement with steel pipe and control panel modification.   http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130128_02-e.pdf     Iori Mochizuki _____

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[M7.3] Reactor1 of Fukushima Daini discharged air from reactor building to have positive pressure

According to Tepco, Fukushima Daini had an increase of air pressure inside of the reactor building though they announced there was no problem after the M7.3. Tepco reported like this

Core removing struggle

Tepco reported they don’t know why nitrogen injection decreases the temperature of reactor1

According to the minutes of mid/long term Fukushima measures meeting held on 10/22/2012, Tepco is not sure about why nitrogen injection decreases the temperature of PCV in reactor1. Fukushima Diary

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Cloud-shaped white gas came above reactor3 on live camera

JNN live camera caught cloud-shaped white gas coming up above reactor3 at 1:04 10/18/2012.(JST) Because lower half of the screen is covered, it’s impossible to detect where it came from.