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  2. Hexavalent chromium - Wikipedia

    en.wikipedia.org/wiki/Hexavalent_chromium

    Hexavalent chromium (chromium(VI), Cr(VI), chromium 6) is any chemical compound that contains the element chromium in the +6 oxidation state (thus hexavalent). [1] It has been identified as carcinogenic, which is of concern since approximately 136,000 tonnes (150,000 tons) of hexavalent chromium were produced in 1985. [ 2 ]

  3. RoHS - Wikipedia

    en.wikipedia.org/wiki/RoHS

    It can also find chromium but cannot tell if it’s hexavalent chromium. Additional tests are necessary for that. However, XRF [29] cannot analyze organic compounds such as phthalates or PBBs. XRF can detect total bromine which works as a pre-screening method.

  4. Hazardous waste - Wikipedia

    en.wikipedia.org/wiki/Hazardous_waste

    "In terms of hazardous waste, a landfill is defined as a disposal facility or part of a facility where hazardous waste is placed or on land and which is not a pile, a land treatment facility, a surface impoundment, an underground injection well, a salt dome formation, a salt bed formation, an underground mine, a cave, or a corrective action ...

  5. List of Superfund sites in Washington (state) - Wikipedia

    en.wikipedia.org/wiki/List_of_Superfund_sites_in...

    Soils contaminated by radiological and chemical waste from plutonium manufacture for the Manhattan Project and subsequent activities. Groundwater contaminated by strontium-90, carbon-14, tritium and hexavalent chromium and discharges into the Columbia River, which is the water supply for over 170,000 people. [33] June 24, 1988: April 10, 1989 –

  6. List of Superfund sites in Tennessee - Wikipedia

    en.wikipedia.org/wiki/List_of_Superfund_sites_in...

    This is a list of Superfund sites in Tennessee designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contaminations. [1]

  7. Chrome plating - Wikipedia

    en.wikipedia.org/wiki/Black_chrome

    Hexavalent chromium is the most toxic form of chromium. In the U.S., the Environmental Protection Agency regulates it heavily. The EPA lists hexavalent chromium as a hazardous air pollutant because it is a human carcinogen, a "priority pollutant" under the Clean Water Act, and a "hazardous constituent" under the Resource Conservation and ...

  8. Aircraft recycling - Wikipedia

    en.wikipedia.org/wiki/Aircraft_recycling

    Certain composites can be classified as hazardous waste depending on the chemicals that coat them such as hexavalent chromium so extra precautions must be made when recycling these materials. [1] Additionally, if a composite is carbon fiber , precautions must be taken when melting the material for recycling to avoid the release of electrically ...

  9. Garfield Groundwater Contamination Superfund site - Wikipedia

    en.wikipedia.org/wiki/Garfield_Groundwater...

    Exposure to hexavalent chromium can cause irritation and problems in the respiratory tract, stomach, and small intestine. It is linked to several cancers, such as lung cancer, oral cancer, and intestinal cancer. [11] During floods, the chromium contaminated groundwater would flood into local Garfield residences and businesses.

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