Japan Earthquake

Japan Earthquake | Page 112

@dean: what is the level of radiation in a safe reactor ? Is it something like 10 uSv/h ?
by Jo Lindien 3/27/2011 9:50:21 PM

@Dean But couldn't the earlymeasure of 10mil. have been caused by them using the boom detectore? They're much more sensitive, and usually a radtech checks with a hand-held.
by marie rich 3/27/2011 9:50:22 PM

Yes, only 1000 milli sieverts/hr - don't think I want to build a house there
by Markfm 3/27/2011 9:51:16 PM

are you saying that 100000 higher than the normal radiation level is good? well kudos to TEPCO because they found a way to tell you that 100.000 radiation level higher than normal level is good!
by Caorso 3/27/2011 9:51:21 PM

optim... I understood the news to say something like they will flop a hose using a portable sump pump down and then route the water to the condensation pit
by dean 3/27/2011 9:51:41 PM

This report says cesium 137 binds to concrete and there is so much concrete at fukushima that surely radiation levels ever falling to allow workers in for any length of time is doubtful? www.businessweek.com
by elainekirk 3/27/2011 9:52:55 PM

jo.. in the reactors where I've worked the general level is 5mr/hr.. or less.. .which is in the range your talking..
by dean 3/27/2011 9:53:06 PM

marie.. you bring up a good point.. we use boom meters all the time to approach cautiously high rad areas.. but before hand it is all mapped out with a pre survey by rad tech personnel and put on an map..
by dean 3/27/2011 9:54:01 PM

Hopefully some good news, my friend's brother is an electrical engineer based in the UAE - his company specialises in undersea cabling. He's being sent to Sakhalin next week - perhaps the Russians can get a cable across to Hokkaido and start supplying Japan's eastern grid. Hopefully can post some concrete evidence about it soon
by andyjsha 3/27/2011 9:54:11 PM

the boom detectors we use are adjustable with a switch that turns to different decade readings.. so you have to know what your looking for
by dean 3/27/2011 9:54:53 PM

@dean: so they might be right: they annouced more than 1000 mSv/h, which is 100000 x 10 uSv/h. The odd fact are this level is still increadibly high... May we conclude they panic to the point of not being able to compute a single division ? (cynical joke...)
by Jo Lindien 3/27/2011 9:55:24 PM

FYI: Radiation Network now has a monitor on Maui (my former home) that I didn't notice this morning and there are more monitors showing in So. Cal. scroll to btm of page for HI link. www.radiationnetwork.com
by Tenzing 3/27/2011 9:55:27 PM

yep jo..
by dean 3/27/2011 9:55:54 PM

@Elaine go ahead and add that to the pinned news stories - just edit the pinned document and paste link -save
by George Gibb 3/27/2011 9:57:43 PM

Good morning from my end (GMT+8). Great online board, @George Gibb. It's the start of the working week, and I will endeavor to follow as best I can throughout the day.

Big big thanks, @everybody, for keeping up the lively, edifying yet quite civil and very unfoul chatter, and for trying your best to stay on topic, fervently disagreeing but graciously holding back on personal attacks.

Thanks for keeping in mind some best practice points:
* including links of relevant SOURCES especially when flashing or passing forward news or tips
* indicating UTC/GMT timestamps wherever possible, as this is a board that involves running events and time-sensitive info.

Remember: Information is like eggs, the fresher, the better. Stay safe, stay cool. Be rods and pipes and pools that fuel, conduct and store knowledge in a constructive way. Go for clarity always, monitor and radiate nothing but love for each other.
by alblee 3/27/2011 9:57:59 PM

@Tenzing Thank you !
by VeenOui 3/27/2011 9:58:32 PM

for everyone - Thank You :)
by Tenzing 3/27/2011 9:59:04 PM

@elainekirk2001 I am going to see if that binding to concrete part is true.. It may take some time
by NHK Listener 3/27/2011 9:59:43 PM

@alblee mabuhay!
by marie rich 3/27/2011 9:59:57 PM

About that businessweek article, why are they calling it the second worst nuclear accident in history already? en.wikipedia.org this one looked pretty bad as well.. not a very populated area, but the amount of radioactive material released is pretty staggering.
by sims 3/27/2011 10:00:15 PM

Does everyone have a link to the FB page for Reuters?
by ricky 3/27/2011 10:00:36 PM

tomorrow I will be meeting with nuclear engineering and safety engineers to discuss the events... I will report back tomorrow what I find out... does anyone have any question they would like to post.. .I"ll try to capture them all
by dean 3/27/2011 10:00:56 PM

A comment left on Dr. Michio Kaku's blog (see Bob Ross) has another idea on why the TEPCO statement was retracted. bigthink.com
by Jim Carver 3/27/2011 10:01:15 PM

@Dean: so at least we known they're not trying to manipulate the fact; [Opinion] just in full panic, making mistakes without noticing... as they seem to be from the start...
by Jo Lindien 3/27/2011 10:01:18 PM

@alblee I am going to add links to the pinned comment and rebuild it daily on the fly as they appear each day
by George Gibb 3/27/2011 10:02:24 PM

@Dean..I believe that the most important thing is to capture all experts' feeling about this. If they feel situation is getting better then we will feel good. If on the other hand they feel that things are getting worse..japanese folks better start worrying
by Optim 3/27/2011 10:02:36 PM

www.ncbi.nThis is forsure long term lm.nih.gov about cesium bonding too concrete
by Markfm edited by George Gibb 3/27/2011 10:02:37 PM

I think something like that jo... I made a comment some days ago.. these accidents are unprecedented in the nuclear industry and we are operating outside the normal set of emergency procedures for accidents at facilities. .so, each day different crises and they have to make up a reaction plan or recovery plan and to be honest.. it's difficult at besst
by dean 3/27/2011 10:03:07 PM

@dean Yes, i have a question.
Does the Fukushima fallout have any effect on atmospheric conditions.......I am wondering if a change in weather pattern is possible as it was in Europe with Acid rain ?.thanks
by VeenOui 3/27/2011 10:03:09 PM

More smoke/vapor on 'TEPCAM', but not tons. www.tepco.co.jp
by marie rich 3/27/2011 10:03:11 PM

@dean Maybe ask about some consistecy concerning units of measurements so laypersons are not so confused?
by Jim Carver 3/27/2011 10:03:41 PM

yes optim... I hear on the news CNN a man who i would say is a dooms day type.. he says.. all hell will break loose.. but I don't think that .. it's not like chernobyl.. where a huge explosion ocurred as you alll know and spewed fuel all over... it's more like a huge radiation challenge
by dean 3/27/2011 10:04:32 PM

Right, @George (on the pinned links, great idea). I will be in and out throughout this day but in a kinda unpredictable frequency. Cheers!
by alblee 3/27/2011 10:04:50 PM

@Jim Carver Eric Shidler's comment is also interesting in that blog.
by es 3/27/2011 10:05:08 PM

@Dean: I'd like to have an opinion about #3 reactor. Comparing to #4 and documents we have seen about Mark I desing, it seems to me that the building has collapsed lower than the top of the spent fuel pool. If so, its integrity could not have been preserved. Anyone knowing this plant design saying that I'm wrong would be great....
by Jo Lindien 3/27/2011 10:05:16 PM

I will ask that veen... and report back..
by dean 3/27/2011 10:05:18 PM

@marie rich: thanks for noticing.... It seems to me like blackish smoke. Is it ?
by Jo Lindien 3/27/2011 10:06:02 PM

@dean, what you think about water level in reactors cores ? JAIF give the same data sience many days about those levels, how it is possible that there is no change ??
by John 3/27/2011 10:06:27 PM

@dean Survey what they think caused #2 torus to rupture? Seems like the biggest unknown to me. Thanks
by marie rich 3/27/2011 10:06:31 PM

@VeenOui : acid rain has nothing to do with radiation. acud rains comes from pollution ( S ) in the air. radiation will not change the weather. rain will just washout the radiation from the air.
by Matsuoko 3/27/2011 10:06:42 PM

@dean - i hear what you say - but Dean is this like a slow build up to a long term problem - sorry to put it so simply but i am not technical at all
by fiona 3/27/2011 10:07:01 PM

@Jo Lindien Yes, to me, too. But I have a TEPCAM fetish :(
by marie rich 3/27/2011 10:07:14 PM

I feel that currently situation is just about in control. The first thing that we will notice is color of trees thru' webcam. Currently they are all lush green pointing that radiation is not even threatening for trees. Not sure how that relation works wrt to humans/infants/toddlers/kids
by Optim 3/27/2011 10:07:17 PM

I captured all the questions
by dean 3/27/2011 10:08:25 PM

@dean, When the quake hit and some workers got locked inside one of the containment buildings, they reported steam coming from somewhere. Isnt it correct there is a specific valve that releases some steam into the containment in the event of a reactor scram ?
by WolfDK 3/27/2011 10:08:28 PM