EnviroNews World News, Feb 6, 2017 (emphasis added): The astronomical readings bring major concerns to a cleanup operation already spiraling out of control — flying blindly into territory previously uncharted in the history of nuclear power…. To top it off, 530 sieverts per hour might not be the worst cleanup workers have to worry about. TEPCO also stated that surface-level radiation readings from parts inside the plant’s pressure vessels can reach “several thousand sieverts per hour,” compounding what are already seemingly unsurmountable tasks in the decommissioning process. Esteemed nuclear expert, engineer, and former reactor operator Arnie Gundersen told EnviroNews World News in an email that the position of Fairewinds, his educational non-profit, is thatradiation levels are presently way to high to remove the melted fuel, and that the reactors should be entombed, like was done with Chernobyl’s sarcophagus, for at least a centurybefore attempting dismantlement. “[These readings do] make dismantling the facility almost impossible for 100 or more years, as the exposure to workers would be too significant,” Gundersen said.
Snopes, Feb 7, 2017: In a statement they sent to us, Tepco [said] “The level of radiation discovered was higher than expected… Extra precautions have been taken to prevent leaks of radiation during the investigation.”… What that means, engineer and San Diego State business professor Dr. Murray Jennex told us, is that clean-up just became much more difficult than expected… “The structures are holding but inside where the fuel melted, it went all over the place…” Jennex, an expert on nuclear containment… surmised that Tepco would ultimately be forced to build a concrete sarcophagus around the unit like the one that encapsulates reactor no. 4 at Chernobyl. He added that they “may have to let nature take its course for a while.”
Sputnik, Feb 11, 2017: This level of radiation [at Fukushima Unit 2] is beyond extreme, even in comparison to the inside of the Chernobyl reactor, where radiation levels are ‘only’ 34 Sv/hr. (Click to Article)