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Top > Releases ・ Announcements > Fukushima Daiichi NPS Prompt Report > 2013 > Steam Found Near the Central Part of the Fifth Floor (Equipment Storage Pool Side) of Unit 3 Reactor Building at Fukushima Daiichi Nuclear Power Station (Follow-up Information 23)

Fukushima Daiichi NPS Prompt Report 2013

Fukushima Daiichi NPS Prompt Report (Sep 16, 2013)Steam Found Near the Central Part of the Fifth Floor (Equipment Storage Pool Side) of Unit 3 Reactor Building at Fukushima Daiichi Nuclear Power Station (Follow-up Information 23)

This is a follow-up report on the statuses of steam found wafting through the air near the central part of the fifth floor (equipment storage pool side) of Unit 3 on July 18.

As of the steam coming from near the central part of the fifth floor (equipment storage pool side) of Unit 3, it had been observed by a camera at around 8:00 AM on September 15. However, it has not found since around 8:00 AM on September 16.

The plant status and the monitoring post readings at present (as of 8:25 AM) are as follows, and no abnormality has been found.

- 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
- Pressure of dry well:
No significant change was found
- Noble gas monitor:
No significant change was found
- Nitrogen injection:
Continuing stably
- Weather condition:
Air temperature 25.4℃, humidity 93.6%
* The weather condition is as of 8:00 PM on September 16.

We will continue to monitor the status closely.


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