Tokyo Electric Power Company has reported the cessation of the "steam like emission" from the upper level at Fukushima Daiichi Unit 3. The utility also reports no deviation from established norms in terms of airborne contamination.
Click here to see the press release announcing stoppage of the vapor emission.
Click here to see the report showing no deviation in measured contamination / radiation levels.
Click here for the appropriate Press Handout covering the situation in entirety.
Click here for a very detailed report covering radionuclide sampling performed as a response.
Yesterday I reported that TEPCO officials had remarked to various Japanese press outlets that it was their suspicion that rainwater had contacted the head of the primary containment vessel, and the resultant vapor rising through the structure was what the contractor had videotaped. That suspicion has now been put officially into print in the latest overall Fukushima Daiichi daily plant status update. See the underlined portion of the report.
All this said, it would not be surprising at all for such an event to happen again while the 1F3 reactor building is still exposed to the elements - thus perhaps auguring future occurrences of similar nature. TEPCO cannot however ignore any such future events (it must analyze any suspect emission) and I'd expect their response in future to mirror that we've seen over the last couple of days.
11:45 AM Eastern 7/19/2013
ATOMIC POWER REVIEW
Friday, 19 July 2013
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