Gundersen: White haze in photo of Unit 3 is coming from spent fuel pool — Almost as dangerous as Unit 4 (PHOTOS)

Published: July 12th, 2012 at 11:50 am ET
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Follow-up to: Tepco releases labeled image indicating location of No. 3 Spent Fuel Pool (PHOTO) which noted “what appears to be a whitish haze” in the location above the spent fuel pool.

According to an email from Fairewinds nuclear expert Arnie Gundersen:

Yes, the white haze is water evaporating off the SFP. There is a 1/3 core off load of hot nuclear fuel in the U3 SFP, so there is a lot of decay heat. That’s why U3 is almost as dangerous as U4.

Published: July 12th, 2012 at 11:50 am ET
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