Thursday, March 24, 2011
Yet Another Nuke Post
Otherwise things seem to be proceeding pretty well. The last NISA update for 3/24 currently available shows relatively high pressures in No. 1, in the reactor vessel, the containment vessel and the suppression vessel. By now they may already have done something about it. It looks like they are pumping more water in there, and some is turning to steam, which raises the pressures. They can vent if they have to, but of course they want to do so with some safety margin, after clearing workers from the area, and when winds will tend to blow it out to sea. (Found article on this.)
They are publishing a lot more information (they have more) now with each release.
The one plant in Tokyo that was showing the levels of iodine over 100 becquerels/liter has now cleared somewhat, so Tokyo has lifted the infant/water warning. Several water treatment plants north have found higher levels and have imposed warnings.
Radiation monitoring of different types is being published here. Although generally radiation readings have been dropping, in some places out of the 20/30 km zone the soil and water is very significantly contaminated. Look here. Once additional emissions from Daiichi are controlled, the iodine concentrations will drop relatively rapidly. The cesium levels will be around for a long while.
That's your cue, Mark.
Don't forget the tinfoil & charcoal for cooking.
I am neither anti-nuclear power nor always pro-nuclear power. I hope you don't mind if I give a long answer as a post.
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