• Unit #2’s re-solidified fuel (corium) is confirmed to be inside the reactor vessel (RPV). Tepco has posted a detailed Press handout concerning the muon scanning results for unit #2 (link below). On page four of the handout, we can see that the corium remains in the bottom head of the RPV. The image also indicates that some of the damaged fuel is still in the core area, where it was located before the March, 2011, tsunami-spawned nuclear calamity. Page six of the handout shows that of  the 210 tons of fuel and support structures that originally comprised the undamaged core, 20-50 tons remain in the core barrel and “about 160 tons” is collected in the RPV’s bottom head The inherently limited resolution with muon imaging compels approximation of the masses, which leaves the speculative door open for believing that as much as 14% of the core might possibly have worked its way through some of the bottom head and re-solidified on the base-mat beneath the RPV. However, if we compare the unit #2 core barrel image with unit #1, we see a drastic difference. Unit #1’s core barrel showed brightly, indicating full relocation. Unfortunately, but not unexpectedly, only one major news outlet in Japan, NHK World, reported on Tepco’s news release. However, NHK’s article makes it seem that the corium in the bottom head of the RPV is still molten, which is absolutely incorrect. (unit #2 imaging)  http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2016/images/handouts_160728_01-e.pdf — (unit #1 imaging) https://www4.tepco.co.jp/en/nu/fukushima-np/handouts/2015/images/handouts_150319_01-e.pdfhttp://www3.nhk.or.jp/nhkworld/en/news/20160728_31/  (Comment – Why is both the Japanese and international Press ignoring this highly-significant information? See the next item…)
  • A sociologist says “only sensational news [about Fukushima] is being reported.” Professor Hiroshi Kainuma of Ritsumeikan University told the Foreign Correspondence Club of Japan (FCCJ) that most news stories make Fukushima look like a horrific disaster. He then then asked, “Is this really how it is?” Kainuma then answers “No!” Getting housing as well as offices for companies involved in F. Daiichi decommissioning is easier than it seems. The problems faced by most people are not really different from those faced by all Japanese, such as garbage disposal and traffic congestion. Kainuma says it is time to “share reality as it really is” and “support those who will engage in the decommissioning. He has published an encyclopedia about the F. Daiichi decommissioning based on three principles: objectivity, neutrality, and empathy. The Encyclopedia “looks at the people living around the NPPs, not just engineering and technical issues.” http://www.jaif.or.jp/en/sociologist-says-its-time-to-update-recognition-of-realities-at-fukushima/ (Comment – This reporter has complained for several years that most Japanese and international Press is only interested in fomenting Fear, Uncertainty, and Doubt [FUD], while intentionally ignoring anything positive about Fukushima. Case in point – the above confirmation of the location on unit #2’s corium. Hopefully, the FCCJ will take Kainuma’s words to heart; but, I’m not holding my breath. Fukushima FUD sells, and the converse doesn’t.)
  • Less than 1% of food-fish caught near F. Daiichi remains contaminated. Only one of the 113 fish taken from within 20 kilometers of Fukushima Daiichi in April contains any detectible Cesium-134. The Pacific Ocean has a background concentration of Cesium-137 from post-WWII nuclear weapon’s testing. Cs-137 has a half-life of ~30 years, which means it will be detectible for more than 300 years. But, the Cs-134 has only a two year half-life and literally disintegrated from the Pacific two decades after atmospheric weapon’s testing stopped. Any Cs-134 currently found in the Pacific waters or its biota must have come from the Fukushima accident in 2011. Cs-134 was readily detectible in food-fish near F. Daiichi soon after the bulk of radioactive emissions were expunged from the four damaged units. The current lack of detectability strongly indicates that aqueous releases to the Pacific have greatly diminished and the fish caught within 20 km of the nuke station are safe to eat. https://www4.tepco.co.jp/en/nu/fukushima-np/f1/smp/2016/images/fish02_160722-e.pdf
  • On the other hand, only 5 of the 18 fish caught inside the F. Daiichi port area have no detectible Cs-134. This should come as no surprise because the inner quay – where all releases to the sea originate – is barricaded and sealed with a permeable “silt dam” which allows water level inside the quay to rise and fall with the tides. The silt dam filters the greater amount of both Cesium isotopes and keeps them within the quay itself. But, the port area outside the quay, within the break-wall, continues to receive tide-spawned Cesium isotopes, slowing the drop in concentrations in the meat of port-area food-fish.  It is important to note that 55% of the fish taken from the port have less than the national limit for consumption of 100 Becquerels per kilogram – the highest percentage to date. https://www4.tepco.co.jp/en/nu/fukushima-np/f1/smp/2016/images/fish01_160722-e.pdf
  • The NRA says quake calculations for Oi nuke station are adequate. Recently, a former Nuclear Regulation Authority commissioner publically questioned the adequacy of the methodology used to calculate worst-case earthquakes. This spurred a reinvestigation by the NRA concerning Oi station. On Wednesday, the agency said that the alternative methodology suggested by the former commissioner actually resulted in calculated ground movement less than the presently used methodology. The NRA concluded that the recalculation method is not trustworthy and the figure obtained cannot be used for a comparison with the initial one. The Press alleges that there are “experts” who want the present methodology changed, but NRA Chair Shunichi Tanaka said they will make no changes unless actual proof of a need is submitted. http://www3.nhk.or.jp/nhkworld/en/news/20160727_21/
  • Tepco wants its nuclear stations removed from the “Pokemon Go” app. Virtual monsters are believed to be hidden at nuke plants, and this includes at least one of Tepco’s three stations; F. Daiichi. F. Daini, and Kashiwazaki-Kariwa. App creator, Niantic Inc., will only say that Fukushima Daiichi and Daini stations were not included in the design. However, some of the monster locations are within the government-mandated F. Daiichi evacuation zone, where players can enter after going through registration procedures. Fukushima Governor Masao Uchibori says it is “unfavorable” for citizens to enter the zone while playing Pokemon Go. No players have yet been found on Tepco premises or within the Fukushima evacuation zone. http://mainichi.jp/english/articles/20160726/p2a/00m/0na/015000chttp://english.kyodonews.jp/news/2016/07/423087.html