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Fukushima: Die Katastrophe setzt sich fort

By Guest PostAugust 26, 2013Environmentakw, akw mitarbeiters, atomexperte bei greenpeace, die katastrophe, fukushima, fukushima daiichi, heinz smital, japans, kernkraftwerk fukushima, kernschmelze, nukleare ereignisse, pazifik, radioaktiven wasser, tepco, tschernobyl, umwelt

Ein neues Leck am Kernkraftwerk Fukushima verseucht die Umwelt deutlich schlimmer als bisher angenommen. Mit 300 Tonnen ausgelaufenem radioaktiven Wasser ist es der bisher größte Störfall seit der Katastrophe vom März 2011.

Einer von hunderten Tanks auf dem AKW-Gelände, die zur Aufbewahrung des Kühlwassers dienen, ist leck geschlagen. Hatte Tepco, der Betreiber des Atomkraftwerks, anfangs noch 120 Liter ausgelaufenes Wasser gemeldet, musste er am Mittwoch seine Aussage berichtigen: Die 2.500-fache Menge radioaktiv verseuchtes Wasser war aus dem Leck getreten. “Wie viel Inkompetenz und Vertuschung von Tepco toleriert die japanische Regierung noch?”, kommentiert Heinz Smital, Atomexperte bei Greenpeace, die Fehlinformation. (more…)

Fukushima Lesson: Prepare for Unanticipated Nuclear Accidents

By Guest PostMarch 12, 2012Environmentalexandra navrotsky, davis, decontamination, earthquake, edward h kraus, electricity, Environment, fission, fukushima, fukushima daiichi, fukushima reactor, human health, hydrogen gas, Japan, japanese government, knowledge, magnitude, nuclear fuels, nuclear power plant, nuclear waste, peter burns, radiation, radioactive fallout, rehabilitation, rodney ewing, seawater, tepco, tsunami, university of california, university of michigan, university of notre dame, uranium dioxide, zirconium alloy

ANN ARBOR, Mich.— A year after the crisis at Japan’s Fukushima Daiichi nuclear power plant, scientists and engineers remain largely in the dark when it comes to fundamental knowledge about how nuclear fuels behave under extreme conditions, according to a University of Michigan nuclear waste expert and his colleagues.

In a review article in this week’s edition of the journal Science, U-M’s Rodney Ewing and two colleagues call for an ambitious, long-term national research program to study how nuclear fuels behave under the extreme conditions present during core-melt events like those that occurred at Fukushima following the March 11, 2011, magnitude 9.0 earthquake and tsunami. (more…)

One Year after Triple Disasters, Japan Continues to Struggle

By Guest PostMarch 3, 2012Environment, Generalbureaucratic red tape, catastrophe, coastal city, coastal communities, earthquake, ethan segal, evacuation zone, fukushima nuclear power plant, haiti, hurricane katrina, Japan, japanese government, japanese history, katsurao, michigan state university, nuclear meltdown, rikuzen takata, tepco, tokyo electric power, triple disasters, tsunami

EAST LANSING, Mich. — A year after Japan was struck by triple disasters – earthquake, tsunami and nuclear meltdown – many citizens cannot find regular work and face the possibility of never returning to their homes and seeing their communities disappear, according to a Michigan State University scholar.

Ethan Segal, associate professor of Japanese history, made two trips to Japan following the March 11, 2011, catastrophe, spending close to two weeks in the northeastern part of the country that was most directly affected. (more…)

Researchers Assess Radioactivity Released to the Ocean from the Fukushima Dai-Ichi Nuclear Power Facility

By Guest PostDecember 7, 2011Environmentbaltic and black seas, cesium 134, cesium 137, chernobyl accident, coastal waters, contamination, fate of radioactivity, fukushima dai ichi nuclear power plants, fukushima nuclear power plants, groundwater, history of contaminant, iodine 131, isotope, japan agency for marine earth science and technology, ken buesseler, levels of radioactivity, limnology, march 11 earthquake, marine biota, marine life, marine sediments, masao fukasawa, meteorological research institute, mext, michio aoyama, northwest coast of japan, ocean, ocean mixing processes, plants, radioactive leaks, radioactivity, radioactivity from fukushima, radionuclides, reactor facility, salt lake city, salt water basins, tepco, tsunami, woods hole oceanographic institution

With news this week of additional radioactive leaks from Fukushima nuclear power plants, the impact on the ocean of releases of radioactivity from the plants remains unclear. But a new study by U.S. and Japanese researchers analyzes the levels of radioactivity discharged from the facility in the first four months after the accident and draws some basic conclusions about the history of contaminant releases to the ocean.

The study, conducted by Woods Hole Oceanographic Institution chemist Ken Buesseler and two Japanese colleagues, Michio Aoyama of the Meteorological Research Institute and Masao Fukasawa of the Japan Agency for Marine-Earth Science and Technology, reports that discharges from the Fukushima Dai-Ichi nuclear power plants peaked one month after the March 11 earthquake and tsunami that precipitated the nuclear accident, and continue through at least July. Their study finds the levels of radioactivity, while quite elevated, are not a direct exposure threat to humans or marine life, but cautions that the impact of accumulated radionuclides in marine sediments is poorly known. (more…)

Woods Hole Oceanographic Institution to Lead Expedition to Measure Radioactive Contaminants in the Pacific Ocean

By Guest PostJune 3, 2011Environmentacoustic doppler current profiler, adcp, assessment, atlantic, cesium 137, contamination pathways and dispersion, drinking water standard, fukushima nuclear power plant, fukushima plant, gordon and betty moore foundation, gulf stream, iodine and cesium isotopes, Japan, kaimikai o kanoloa, ken buesseler, kuroshio current, levels and dispersion of radioactive substances in the pacific ocean, marine organisms, moore funding, nick fisher, ocean current, phytoplankton, radiation, radioactive contaminants, radioactivity in ocean, radioisotope geochemistry, radionuclides, reactors, research vessel, spain, susan avery, tepco, tokyo electric power company, tokyo institute of technology, university of bremen, university of hawaii, us environmental protection agency, vicki chandler, whoi, woods hole oceanographic institution

The Woods Hole Oceanographic Institution (WHOI) will lead the first international, multidisciplinary assessment of the levels and dispersion of radioactive substances in the Pacific Ocean off the Fukushima nuclear power plant—a research effort funded by the Gordon and Betty Moore Foundation.

“This project will address fundamental questions about the impact of this release of radiation to the ocean, and in the process enhance international collaboration and sharing of scientific data,” said Vicki Chandler, Chief Program Officer, Science at the Gordon and Betty Moore Foundation. “It is our hope that through this adverse event, we can increase our current knowledge about various natural and man-made sources of radioactivity in the ocean, and how they might ultimately impact ocean life and health around the world.” (more…)

Tag Archives: tepco

Fukushima: Die Katastrophe setzt sich fort

Fukushima Lesson: Prepare for Unanticipated Nuclear Accidents

One Year after Triple Disasters, Japan Continues to Struggle

Researchers Assess Radioactivity Released to the Ocean from the Fukushima Dai-Ichi Nuclear Power Facility

Woods Hole Oceanographic Institution to Lead Expedition to Measure Radioactive Contaminants in the Pacific Ocean