Recent content by DSamsom

I am not sure which document you're referring to but MegaBecquerels (10E6) can't be correct. Radioactivity in the air has been in the order of MicroBecquerels (10E-6) all the time

looking at the pictures of the decontamination system, i wonder how they are going to deal with the huge buildup of radioactivity in the filtersystems. Have they figured out a way to get rid of the radiating sludge fully automatically?

Temperatures in RPV reactor 3 are on the rise again after they lowered the rate of cooling water. That decission was most likely taken to limit the amount of radioactive waste water (problems with full tanks and/or leaking tank). Wonder whether they can afford to pump more water in the reactor...

Radioactive release into the ocean increases again. Probably due to the difficulties of dealing with the amount of radioactive water. And this was before the heavy rain: http://www3.nhk.or.jp/daily/english/30_01.html

Interesting figures. The 500 mSv however could be misleading. The title of the map is "organ dose of I-131". Assuming they mean the organ thyroid gland, which has a weighting-factor of 0,05, the resulting effective dose would be 25 mSv.

Tepco released a computer simulation showing dispersal routes and densities of radioactivity released form Fukushima NPP. http://www3.nhk.or.jp/daily/english/21_22.html Interesting: is this simulation available somewhere (other than the screenshots in this NHK item)?

Tepco does not trust the other water levels either. Will try to check on reactor 2 and 3. http://www3.nhk.or.jp/daily/english/16_04.html

Hm, this array of screenshots from apparently (can't verify) a few hours ago doesn't look very 'normal' or am I mistaken http://twitpic.com/4unrpd

And it seems the smoke from reactor 3 is black (and thick). Look at this short excerpt from the live feed. http://goo.gl/JBdwI

Would be too coincidental for the hourly webcam to register an explosion of some kind. And the no-wind (see ocean) situation is probably a better explanation for this odd shaped plume. Still, what is happening on the most recent webcampicture ? http://www.tepco.co.jp/nu/f1-np/camera/index-j.html

Mm, something's going wrong there. See webcam image 28/4 08:00 AM (Japan Time) http://www.tepco.co.jp/nu/f1-np/camera/index-j.html

Thanks for this. What's the link to this webcam?

This morning NHK reported problems in temperature of SFP unit 4. http://www3.nhk.or.jp/daily/english/25_12.html This might be an awkward dilemma for the oprerators since spraying water in large amounts was considered a risk for the damaged structure of the pool. Now spraying too little...

Apparantly NISA announced that the reactor builing No 4 is now flooded in 5 meters of water. Anyone to explain this? Do they mean the SFP?

From IAEA's daily briefing: "On 5th April, measurements were made at 7 locations at distances of 16 to 41 km, South and South West to the Fukushima nuclear power plant. The dose rates ranged from 0.3 to 31 microsievert per hour. At the same locations, results of beta-gamma contamination...