Hydrogen concentration increased 4 times higher at reactor 2

Following up this article..Reactor 2 is reaching 80℃

On 3/22/2012, Tepco announced that they would not use the heating temperature because it’s showing the different pattern from other gauges.

However, the hydrogen concentration has been increasing. At the point of 3/25  5:00, it was already more than 4 times as much as the one on 3/11/2012.

3/11 0.06%

3/16 0.11%

3/22 0.18%

3/24  0.25%

3/25  0.27%


Also, Tepco stopped recording the temperature as of 21:00  3/22/2012, but it went up to 103.7℃ at the last measuring at 20:00 3/22/2012.

2012/3/22 11:00 78.4
2012/3/22 12:00 78.3
2012/3/22 13:00 80.0
2012/3/22 14:00 81.3
2012/3/22 15:00 90.1
2012/3/22 16:00 94.8
2012/3/22 17:00 96.7
2012/3/22 18:00 98.5
2012/3/22 19:00 100.3
2012/3/22 20:00 103.7

As always, no explanation is given by Tepco.

Additionally, the temperature of the bottom of the reactor (VESSEL WALL ABOVE BOTTOM HEAD  TE-2-3-69H2) increased by 7℃ from 11:00 3/22/2012 to 5:00 3/23/2012.

2012/3/22 11:00  44.6℃

2012/3/23 5:00  51.4℃

They still don’t know if it went out of order or there is something really heating.

Because they have abandoned too many heating gauges, now 3 of 6 are treated as broken. From 3/15 to 3/22, Tepco and Toshiba investigated for the place to set new heating gauges from the first floor to the second floor of the reactor building, but the highest reading on the pipe was 1.64 Sv/h.





About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


March 2012