Fukushima Daiichi NPS Prompt Report 2013

This is a follow-up report on the statuses of steam-like gas found wafting through the air near the central part of the fifth floor (equipment storage pool side) of Unit 3.

Currently (as of 4:00 PM), steam-like gas is continuously wafting through the air. The plant status at 4:00 PM is as follows, and subcritical state is found to be maintained at 4:15 PM.

- Reactor water injection, cooling of the spent fuel pool:
Continuing stably
- Monitoring post readings, continuous dust monitor amounts:
No significant change was found
- Temperature of RPV/PCV:
No significant change was found
- Noble gas monitor:
No significant change was found
- Nitrogen injection of PCV:
No significant change was found

Please visit our website to see the video of the steam-like gas wafting through the air near the central part of the fifth floor (equipment storage pool side) of Unit 3.
http://photo.tepco.co.jp/date/2013/201307-j/130718-01j.html

We will continue to monitor the status closely.