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  2. Halogen lamp - Wikipedia

    en.wikipedia.org/wiki/Halogen_lamp

    Halogen bulbs operate at high temperatures and the tall height of the lamps can bring them near flammable materials, such as curtains. [29] Some safety codes require halogen bulbs to be protected by a grid or grille, especially for high-power (1–2 kW) bulbs used in theatre , or by the glass and metal housing of the fixture, to prevent ...

  3. Hazardous waste - Wikipedia

    en.wikipedia.org/wiki/Hazardous_waste

    Household Hazardous Waste (HHW), also referred to as domestic hazardous waste or home generated special materials, is a waste that is generated from residential households. HHW only applies to waste coming from the use of materials that are labeled for and sold for "home use". Waste generated by a company or at an industrial setting is not HHW.

  4. RoHS - Wikipedia

    en.wikipedia.org/wiki/RoHS

    RoHS and other efforts to reduce hazardous materials in electronics are motivated in part to address the global issue of consumer electronics waste. As newer technology arrives at an ever-increasing rate, consumers are discarding their obsolete products sooner than ever. This waste ends up in landfills and in countries like China to be "recycled".

  5. How hazardous are these household items?

    www.aol.com/news/2015-12-01-how-hazardous-are...

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  6. Soot - Wikipedia

    en.wikipedia.org/wiki/Soot

    Soot is considered a hazardous substance with carcinogenic properties. [2] Most broadly, the term includes all the particulate matter produced by this process, including black carbon and residual pyrolysed fuel particles such as coal , cenospheres , charred wood, and petroleum coke classified as cokes or char .

  7. These are the best — and worst — lightbulbs for the planet

    www.aol.com/lifestyle/best-worst-lightbulbs...

    While halogen bulbs, like incandescent, contain a filament made of the metal tungsten, they are, in this case, encased in a quartz envelope (as glass would melt from the heat); the gas inside is ...

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