Japan Earthquake

Japan Earthquake | Page 1799

@Peter Melzer but even if it is bound it can be substituted .... cesium and kalium for example .... and it ends up in the blood again .... for a new cycle.
by Edano edited by Edano 6/30/2011 4:28:06 PM

Yes, the completely bound stuff will govern actual half-life in the body, and at that point it becomes straight radioactive decay, right? I'm trying to get a handle on whether this method of parsing these numbers is designed to clarify or mystify.

by RadioGuy 6/30/2011 4:28:37 PM

@Edano Good points too. It's a moving target by nature, but it seems like they're working overtime to confuse any clarity that even begins to emerge.
by RadioGuy 6/30/2011 4:31:01 PM

@RadioGuy : pharmacology is surely the most complicated compartment of medicine. it is exact science, but very complex.
by Edano 6/30/2011 4:34:32 PM

@Edano And then 10% of what's left becomes a target for immediate elimination over 5 days because it never gets absorbed before its eliminated, or it's easily flushed. I guess I understand what they're getting at: more granularity in gauging biological effects. Sort of the equivalent of using a false-color image to spread the definition enough that you can see distinctions better..
by RadioGuy 6/30/2011 4:35:54 PM

@All On the TBS cam #4 can not be seen and on TEPCO cam it looks like that there is some light which is enlightening #4, but I also noticed that the tower behind #4 is half seen. The bottom part is not seen. Is #4 smoking ?
by DT 6/30/2011 4:46:13 PM

english.kyodonews.jp

TEPCO starts system to cool another spent fuel pool at nuclear plant

TOKYO, July 1, Kyodo

Tokyo Electric Power Co. said Thursday that it had activated a water circulation system to stably cool another spent nuclear fuel pool at the crisis-hit Fukushima Daiichi atomic power plant, while also starting to transfer relatively low-level radioactive water at the plant to an artificial floating island called a megafloat.

The plant operator is hoping to efficiently cool the spent fuel pool of the No. 3 unit, having started a similar cooling system for the No. 2 unit's pool.

The utility known as TEPCO is trying to contain the world's worst nuclear crisis since the 1986 Chernobyl disaster, in line with a road map that aims to stabilize by January the plant's reactors and spent fuel pools, which lost their key cooling functions in the wake of the massive March 11 earthquake and tsunami.
english.kyodonews.jp
by Edano via English.kyodonews.jp 6/30/2011 4:48:22 PM

@DT They have the lighting on 4 turned off, which sometimes seems to be done to obscure view while something is going on that steams or smokes.
by RadioGuy 6/30/2011 4:52:32 PM

The troubles of TEPCO
The fallout from the Fukushima nuclear disaster is spreading throughout Japan’s energy industry
www.economist.com
by Panserbjorne9 6/30/2011 4:52:35 PM

Health effects of cesium (91 pages) www.atsdr.cdc.gov
by Bobby1 6/30/2011 4:52:51 PM

@Bobby1 Thanks for that 91 pages, was ther a pont, cause I got 112 pages, which wheighs more!
by RBeaner 6/30/2011 5:10:56 PM

@Edano , yes, whatever the precise mechanisms are, the biological elimination process with the slowest rate will eventually determine the radiation absorbed dose when the half-life of the radioisotope is long in comparison. Cs-137 is a good example of such isotope (strontium-90 ia another example).
by Peter Melzer 6/30/2011 5:11:11 PM

tweet from economistweekly that is interesting (translated)
"Fukushima nuclear power plant in the piping was already damaged by an earthquake before the tsunami was coming - I have begun to view and Bochibochi, 27 (Monday) launched "The Economist" extra edition "No More! Fukushima, Fukushima nuclear power plant accident record "provides that cast doubt on seismic safety of nuclear power in the interview Mr. M. Tanaka, who was a nuclear reactor design."
by elainekirk 6/30/2011 6:19:50 PM

Interview with tepco's new president
In an interview with The Asahi Shimbun, Nishizawa said he understands the frustrations of victims of the disaster and the dire conditions for workers at the plant.
www.asahi.com
by elainekirk 6/30/2011 6:26:12 PM

Can we have a tech visit organize to answer a question, pretty please :)
by deb 6/30/2011 6:29:09 PM

Why unit 4 sfp water level is only 350mm ???
by xxx 6/30/2011 6:30:12 PM

@deb I can try.. :-)
by Nancy 6/30/2011 6:30:31 PM

last data: www.tepco.co.jp
by xxx 6/30/2011 6:30:51 PM

It was always 4500-6500mm but 2 days ago it start decreasing to 350mm now
by xxx 6/30/2011 6:31:03 PM

i think this was the question that vanished yesterday mysteriously :)
by Edano 6/30/2011 6:34:31 PM

Maximum Tepco employee external exposure in April 22.29mSv Maximum external exposure employee of 'partner companies' in April 10.59mSv the internal figures are given too but from what I can tell they are all guestimates www.tepco.co.jp
by Elaine Kirk 6/30/2011 7:09:24 PM

@xxx I am trying to find mention of #4 sfp in tepco/meti docs but drawing a blank so far is there a temperature given? has the temp risen?
by Elaine Kirk 6/30/2011 7:10:39 PM

To explain the sudden rise in radiation after the opening of the double doors of #2 unit Tepco have come up with an explanation that casts doubt on the validity of all their readings though I doubt they will be pulled up for it - another one for brushing under the carpet methinks
www.tepco.co.jp
by Elaine Kirk 6/30/2011 7:17:35 PM

@elaine, check over at organize. bunch of posts on it there. Heat been running in the 90's. Pool level was 700mm yesterday 350mm today. So concerning. I suggested we track all data related to 4 and see if we can figure out what is up.
by Nancy 6/30/2011 7:18:36 PM

@Nancy ok just got this from the 3pm update
At 11:30 am on June 30, we started injecting fresh water into the spent
fuel pool of Unit 4 using Alternative Water Injection Line. At 11:55 on
the same day, we finished the injection.
www.tepco.co.jp
will go read organise
by Elaine Kirk 6/30/2011 7:29:03 PM

water level at vertical shaft of the trench unit 4 O.P : plus 3,790mm increase since 29th at 7am
www.tepco.co.jp
by Elaine Kirk 6/30/2011 8:24:24 PM

Last night's Rachel Maddow show coverage of nuclear sites: www.msnbc.msn.com
by Diane_NJ 6/30/2011 8:34:19 PM

by Veenie 6/30/2011 8:38:33 PM

@Nancy heat stroke measures www.tepco.co.jp
by Elaine Kirk 6/30/2011 8:43:40 PM

lh5.googleusercontent.com
#3 1st floor clean up

www.tepco.co.jp
by Elaine Kirk via Lh5.googleusercontent 6/30/2011 8:48:38 PM

lh5.googleusercontent.com
5th floor of reactor #4 building just enlarging some thumbnails
by Elaine Kirk via Lh5.googleusercontent 6/30/2011 8:53:56 PM

images.scribblelive.com

xxx made this plot. it's the #4 sfp water level from june 15 - 30.
by Edano edited by Edano 6/30/2011 8:54:14 PM

lh5.googleusercontent.com
5th floor unit 4 June 30th doc www.tepco.co.jp
by Elaine Kirk via Lh5.googleusercontent 6/30/2011 8:58:43 PM

lh6.googleusercontent.com
from the #4 doc no explanation with pic of why the circle www.tepco.co.jp
by Elaine Kirk via Lh6.googleusercontent 6/30/2011 9:04:16 PM

english.kyodonews.jp
ha, i just stumbled across the vacuum cleaning robot. they call him "warrior", better call him "Furbie" !
by Edano via English.kyodonews.jp edited by Edano 6/30/2011 9:07:06 PM

@Elaine Kirk - ooh pictures inside 4 in the document! I think based on the document the yellow circle means one of the two valves is under that mess. It looks like some sort of beam fell down beside the fuel crane.
by Nancy 6/30/2011 9:08:37 PM

@Edano Can I get one of those for my house? My roomba died.
by Nancy 6/30/2011 9:09:14 PM

@Nancy I can find references to them putting water in #4 reactor well previous days am wondering if that gate pictured in the doc is the leak and they are losing water into the reactor the day before 28th they only watered sfp 11.47 - 12.01 so ?
24th www.tepco.co.jp
26th www.tepco.co.jp
27th www.tepco.co.jp
28th www.tepco.co.jp
www.tepco.co.jp
this is the day after 29th www.tepco.co.jp
by Elaine Kirk edited by elainekirk 6/30/2011 9:13:31 PM

@Nancy o sure nancy, order here: www.irobot.com
by Edano via Irobot 6/30/2011 9:17:16 PM

@Edano which date did the water start dropping?
by elainekirk 6/30/2011 9:22:36 PM

The heat stroke plan, I do hope they treat the contractors on an equal footing with that document. It is hard to tell what refers to non-TEPCO staff continually working at the plant and very temporary contract workers like someone who comes in just to do one thing and leave due to a specialty or as a representative of a company that supplied a part etc. At least they seem to be finally doing something about it.
by lillymunster 6/30/2011 9:23:14 PM

@elainekirk : june 21 they reduced water spraying.
by Edano 6/30/2011 9:24:00 PM

the level started dropping june 20.
by Edano edited by Edano 6/30/2011 9:25:24 PM

by Edano 6/30/2011 9:25:48 PM

@Elaine Kirk If it is leaking back and forth between the fuel pool and reactor well, keeping both full would solve the problem if the air seals somehow allow leaking outside the 2 units it would be a larger problem. I don't think the gate opens into the containment cavity but could have a leak there if something cracked. Seeing what they have photos of in that new handout make me think they may have let it drop intentionally to access some equipment. You think they would announce this is intentional though. They are pretty good at covering their behinds and making excuses. So if it was for a reason one would think they would mention.
by lillymunster 6/30/2011 9:26:37 PM