Posts Tagged ‘dust’

Unexpected amount of “dust” interrupting fuel removal from reactor4 pool

Note : If you are from the international mass media, Don’t read this site before taking a contact with me.     Following up this article.. Tepco “Brown material from fuel is the dirt of reactor4 pool” [URL]   In the press conference of 11/25/2013, Tepco admitted reactor4 pool had unexpected amount of “dust”. The [...]

Atmospheric dose in reactor4 rose by 1.2~1.6 times / Tepco “Dust from reactor3″

Following up this article..High level of Cs-134/137 detected on the top of reactor3 again / Spread by the wind [URL]   According to Tepco, the atmospheric dose picked up on the 5th floor of reactor4 building from 8/9 to 8/19/2013. The increasing rate was 1.2 ~ 1.6 times. On 8/12 and 8/19/2013, the dust monitoring [...]

High level of Cs-134/137 detected on the top of reactor3 again / Spread by the wind

Fukushima Diary reported Cesium-134/137 level jumped up 10~1,000 times much as average on the top of reactor3 on 8/23/2013. [URL]   On 8/29/2013, higher level of Cs-134/137 was measured in the dust of the top of reactor3. The top floor (Operation floor) of reactor3 was already covered with the antiscattering agent. It is unlikely that [...]

Tepco suggested the connection between the dust monitor alarm and high density of C-134/137 on reactor3

Following up this article..Cesium-134/137 level jumped up 10~1,000 times much as average on the top of reactor3 [URL]   On 8/23/2013, Tepco announced they measured the radiation levels on the top of reactor3 to look for the cause of the dust monitoring alarm that went off this week. (cf, [Dust alarm] High level of Cs-134/137 [...]

Cesium density in reactor3 “steam” higher than the gas inside of PCV

Following up this article..[Steaming reactor3] Tepco “The steam may be from the inside of the reactor, a certain volume of N2 gas is missing” [URL] On 7/29/2013, Tepco reported to Nuclear Regulation Authority about the radiation density in the “steam” coming up from the top of reactor3. In the report, Tepco stated the cesium density [...]

[Timely] 2 of the 2 dust radiation monitoring systems down in reactor2

A few minutes ago, Tepco reported they measured 2.2 Sv/h from the top of reactor3. (cf, [Breaking] 2.2 Sv/h from the top of reactor3, 562 mSv/h from the steam [URL]) Following the news, Tepco announced the dust radiation monitoring system B was suspended for the alarm of the vacuum pump at 21:03 of 7/23/2013. The [...]

Cs-134 detected from “steam” in reactor3 / Tepco “not sure if it was rain”

Following up this article..[Steaming reactor3] Tepco “The steam is the heated rain, same thing happened last year but didn’t report it” [URL] According to Tepco, the steam was not observed at 8:00 AM of 7/19/2013. The temperature was 22.9 ℃, humidity was 78.5 %. Having commented it was the heated rain on 7/18, in the [...]

[Express] 15,000 Bq/Kg from the dust of vacuum cleaner in Tokyo, 230km from Fukushima plant

Introducing important tweets as [Express] for simultaneous updates.     <Translate> This is the dust pack of a vacuum cleaner that I measured 14,860 Bq/Kg from. I was shocked to detect it in Higashimurayama city Tokyo (230km from Fukushima nuclear plant) because the reading hasn’t changed since 6 months ago. <End> これは1万4860ベクレルだった掃除機パック。現場(東京秋津)で測って衝撃だった。なぜなら、半年前と変わらない数値だったから。今回 http://twitpic.com/baj2xv 前回   [...]

The fog to have hit Tokyo on 3/10/2013 contained 4,362 Bq/Kg of Cesium-134/137

On 3/17/2013, Fukushima Diary reported “the fog” to have hit Tokyo on 3/10/2013 may cause severe internal exposure. (cf, [Analysis] Spring wind may increase your internal exposure in Tokyo [URL 1]) There was no official warnings about the fog, but the citizen’s radiation monitoring station measured high level of cesium-134/137 from the “dust” left after [...]

Highly radioactive dust accumulated in the body of Shinkansen with no place to stock

↑ This is not the specific Shinkansen that they found the dust from. (Wikipedia) According to National Railway Workers Union, highly radioactive dust is accumulated on the lower part of body of Shinkansen (Japanese bullet train) in North East Japan. The train inspection company happened to collect the dust when they inspected the train bodies, [...]

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