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  2. Radioactive waste - Wikipedia

    en.wikipedia.org/wiki/Radioactive_waste

    Radioactive waste is a type of hazardous waste that contains radioactive material.It is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, nuclear decommissioning, rare-earth mining, and nuclear weapons reprocessing. [1]

  3. Radioactive scrap metal - Wikipedia

    en.wikipedia.org/wiki/Radioactive_scrap_metal

    The cleanup operation for the Goiânia accident [20] was difficult both because the source containment had been opened, and the radioactive material was water-soluble.. In 1983, a different incident in Mexico wherein cobalt-60 was spilled in an otherwise similar exposure led to a very different pattern of contamination, since the cobalt in such a source is normally in the form of cobalt metal ...

  4. Long-term nuclear waste warning messages - Wikipedia

    en.wikipedia.org/wiki/Long-term_nuclear_waste...

    Proposed pictogram warning of the dangers of buried nuclear waste for the Waste Isolation Pilot Plant. Long-term nuclear waste warning messages are communication attempts intended to deter human intrusion at nuclear waste repositories in the far future, within or above the order of magnitude of 10,000 years.

  5. Regulators reject Berkeley plan that would have allowed ... - AOL

    www.aol.com/news/regulators-reject-berkeley-plan...

    She argued that if SCS was intent on comparing radiation at César Chávez to background levels, it should find a nearby site that is unaffected by chemical waste. The water board has given ...

  6. Radioactive contamination - Wikipedia

    en.wikipedia.org/wiki/Radioactive_contamination

    The level of health risk is dependent on duration and the type and strength of irradiation. Penetrating radiation such as gamma rays, X-rays, neutrons or beta particles pose the greatest risk from an external source. Low penetrating radiation such as alpha particles have a low external risk due to the shielding effect of the top layers of skin.

  7. Low-level waste - Wikipedia

    en.wikipedia.org/wiki/Low-level_waste

    Waste is divided into three classes, A through C, where A is the least radioactive and C is the most radioactive. Class A LLW is able to be deposited near the surface, whereas Classes B and C LLW have to be buried progressively deeper. In 10 C.F.R. § 20.2002, the NRC reserves the right to grant a free release of radioactive waste.

  8. Spam and Trash folders are regularly deleted in AOL Mail

    help.aol.com/articles/spam-and-trash-folders-are...

    By default, both the Trash and Spam folders empty automatically to keep your account tidy. These settings are set systemically and can't be changed. • Trash deletion frequency - Trash is deleted after 7 days. • Spam deletion frequency - Spam is deleted after 30 days.

  9. Yucca Mountain nuclear waste repository - Wikipedia

    en.wikipedia.org/wiki/Yucca_Mountain_nuclear...

    The Yucca Mountain Nuclear Waste Repository, as designated by the Nuclear Waste Policy Act amendments of 1987, [2] is a proposed deep geological repository storage facility within Yucca Mountain for spent nuclear fuel and other high-level radioactive waste in the United States.