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  • exposure
  • As from May, heat exposure became an extremely important hazard because of the hot summer weather and workers having to work outdoors wearing double-layer Tyvek® protective coveralls and full-face respirators 6 ( figure 1 ) which inhibit evaporative cooling. (bmj.com)
  • Plutonium can be a serious health hazard if inhaled or ingested , but external exposure poses little health risk, according to the U.S. Environmental Protection Agency. (washingtonsblog.com)
  • substances
  • They store wastewater from the ALPS (advanced liquid processing system) equipment that removes radioactive substances from contaminated water. (rt.com)
  • water
  • Thompson makes clear that a partial drain down of a high-level radioactive waste (HLRW) storage pool is an even worse-case scenario than a complete drain down, for air cooling provided by convection currents -- which might otherwise prevent ignition of the irradiated nuclear fuel's combustible zirconium cladding -- is blocked by the layer of water in the bottom of the pool. (beyondnuclear.org)
  • Fukushima has highlighted how vulnerable spent-fuel ponds are to direct damage or disruption of power, water, or pumps for cooling. (eco-business.com)
  • That's because Fukushima uses water as a coolant and as a way to slow down neutrons unleashed by the fission process, thereby slowing the process itself. (popularmechanics.com)
  • If the cooling water a pool is lost, the used nuclear fuel could catch fire and release radiation. (ncrenegade.com)
  • Nuclear plants generally need AC power to operate the motors, valves and instruments that control the systems that provide cooling water to the radioactive core. (reuters.com)
  • Water containing radioactive material was released into the sea, but without an adverse effect on human health or the environment, it said. (reuters.com)
  • More radiation could spill from Fukushima into the sea if efforts to start a French-built water treatment facility hit a snag. (reuters.com)
  • It's critical to gather early observations of the radioactive contaminants, or radionuclides, in the water and marine biota so we can establish a baseline," said chief scientist Ken Buesseler, a WHOI senior scientist and a recognized expert in the study of radioisotope geochemistry. (whoi.edu)
  • We're hearing that drinking water is contaminated with radioactive iodine. (therealnews.com)
  • gases
  • Although all the container lids were supposed to be fitted with pressure-release valves to allow gases to escape, the inspection determined that one did not have that mechanism. (rt.com)
  • Reuters
  • KANAGAWA, Japan (Reuters) - Hisao Nakamura still can't accept that his crisply cut field of deep green tea bushes south of Tokyo has been turned into a radioactive hazard by a crisis far beyond the horizon. (reuters.com)
  • material
  • About 5 percent of the reactor core actually went up into the air and was carried along the jet stream, allowing the radioactive material to spread across Europe. (popularmechanics.com)
  • If the containment vessel is breached as a result of melting, radioactive fuel could leak into the ground, or pressure buildup could potentially cause an explosion that projects radioactive material into the air. (popularmechanics.com)
  • Throughout the history of US and Soviet space exploration, these countries have sent multiple devices into space (or attempted to send them into space) that were equipped with one type of radioactive material or another. (listverse.com)
  • It's possible that radioactive material in the reactor vessel could leak outside but the amount is expected to be small, and the wind blowing toward the sea will be considered," Chief Cabinet Secretary Yukio Edano told a news conference. (reuters.com)
  • It is estimated to have made up about 9.1% of the radioactive material released at Fukushima. (counterpunch.org)
  • A fuel melt is a serious problem as it releases a lot of the radioactive material that is contained in that fuel. (cnn.com)
  • soil
  • Iguchi is working as a consultant with a government group that is urging thousands of tonnes of contaminated soil to be cleared off and then sent to storage, possibly inside the Fukushima complex. (reuters.com)
  • estimates
  • The hope is that robots will be doing the heavy lifting when it comes time to dig out the fuel on a decommissioning job now expected to last another 30 to 40 years at a new cost of $189 billion - nearly double estimates released three years ago. (bellona.org)
  • fuel
  • Curran concluded: "We are appalled that after decades of avoiding and obfuscating this urgent safety issue, the NRC now proposes to rely on this biased and unscientific document to justify continued high-density pool storage of spent fuel, both in its post-Fukushima safety review and in the Draft Waste Confidence Environmental Impact Statement. (beyondnuclear.org)