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Yes, where I come from, many people are used to recommeding folks do one thing or another. Control is what recommending is all about NOT being helpful. Recognise it for what it is and do not be deceived.
I just "Recommended" you to do this
In my opinion it is dangerous to repeat wrong Information on and on
because many People just look for the Headlinez and believe in it
without realizing that the Case/ Truth is different
The triple disaster of the March 11, 2011, earthquake, tsunami, and
subsequent radiation releases from Japan’s Fukushima Dai-ichi nuclear power plant
were unprecedented events for the ocean and society.
In this article, the radioactive releases from this event are compared
to natural and prior human sources,
with particular attention to cesium-137 and -134 radioisotopes.
Total releases from Fukushima are not well constrained,
with estimates from atmospheric fallout and direct ocean discharge
spanning 4 to 90 peta Becquerels (PBq), but are most likely in the 15–30 PBq range.
This source is smaller than any 137 Cs remaining in the North Pacific
from global and close-in fallout from the 1960s.
It is of similar magnitude to 137 Cs released to the ocean from
the Sellafield nuclear reprocessing site on the Irish Sea,
though of greater magnitude than fallout that reached the ocean from
the 1986 Chernobyl nuclear power plant disaster in the Ukraine.
The fate of Cs is largely determined by its soluble nature in seawater,
though uptake in sediments does occur via cesium’s association
with both detrital particles and biological uptake and sedimentation.
A mass balance of Cs supply from rivers and ongoing leakage
from nuclear power plants suggests that sediments will remain contaminated for
This may be one reason why Cs concentrations in benthic fish stay elevated
over predictions, causing fisheries to remain closed near Fukushima and ongoing
concern to the public
Facing the unprecedented task of cleaning up three destroyed reactors, Japan created the International Research Institute for Nuclear Decommissioning (IRID) to bring the best of global nuclear industry practice to the problem. It launched a request for information last year and between December 2013 and January 2014 the world's nuclear clean-up specialists submitted some 200 ideas.
IRID will now use a special team as well as outside experts to analyse and sort the submissions by the end of March. Some will be selected and taken forward as the basis for conceptual studies and requests for proposals. Planning the fuel removal and the developing the tools to do it is expected to take until around 2020.
Different computer models have been used by Tepco and the Japan Atomic Energy Agency to analyse the positions of the cores, coming to the same conclusion for unit 1. Both models predict that all 77 tonnes of the fuel from unit 1 melted and passed from the reactor vessel to the drywell area immediately below. At units 2 and 3 the models differed but together indicated that 30-40% of their 107-tonne cores remain in the vessels, the rest in the drywell.
Subject to revision in light of the suggestions IRID has received, Tepco's outline plan to tackle the debris is to flood the containment vessels and reach down their full length from the top to remotely handle the remains. Work over this distance of 25-35 metres requires advanced measurement tools such as cameras and laser scanners as well as temperature, pressure and radiation monitors. All of these must operate reliably underwater in a very high radiation environment.
Tepco also noted that the steel structures below the reactor vessel are very complex. Each vessel also has up to 200 penetrations, while the space between the reactor vessel and containment vessel is cramped and therefore a challenging place to install any new machinery.
The figures I have been using are significantly lower(only about 30% of the above numbers). Do you what % of your figures are cesium-other isotopes?
reply to post by TheWetCoast
As far as i remember something in the range of
ca. 600- 750.000.000 Bq a Day for all three Reactors
and atmospheric Release!
(600-750 Mio Bq. a Day)
for more Info!edit on 8-2-2014 by Human0815 because: (no reason given)
Get a Clue and develop Respect because Tepco is mostly right!
I am sure it is possible with the correct equipment and why do you single out this one out of the many? I asked for a ful list of isotopes and measurements, so concentrating on one or two is just as bad as concentrating on cesium or iodine. It does not give us the whole picture.
You may do not know how difficult the detection and measurements of
Strontium 89/90 is in Reality?