from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Plural form of halon.


Sorry, no etymologies found.


  • In addition to CFCs, the protocol covers substances such as halons, carbon tetrachloride, methyl chloroform, hydrochlorofluorocarbons (HCFCs), methyl bromide and bromochloromethane.

    Global Environment Outlook (GEO-4)~ Chapter 2

  • The reclassification implied that the status quo on ODPs already phased out, such as halons, CFCs and carbon tetrachloride, would be unchanged.

    ANC Daily News Briefing

  • The loss comes despite the U.N. ozone treaty, known as the 1987 Montreal Protocol, which has resulted in cutbacks in ozone-damaging chemicals, such as chlorofluorocarbons, halons and other, that were used in the making of refrigerators, air conditioners, fire extinguishers and even hairspray.

    Ozone layer faces record loss over Arctic

  • By using ceiling fans and a heat chimney to promote air movement, the building requires no air conditioning, lowering energy needs and eliminating emissions of CFCs and halons.

    Doing Business in a Green Office Building

  • The HO, O1D or Cl, or Br from photodissociation of halons, reacts with methane, CH4, to produce methyl radicals, CH3.

    Passing Gas

  • Growth and distribution of halons in the atmosphere.

    Factors affecting arctic ozone variability in the Arctic

  • Parties to the Montreal Protocol agreed to phase out CFCs, halons and carbon tetrachloride by 2000, and methyl chloroforms by 2005.

    Threats to atmospheric resources in Africa

  • Although consumed in much smaller quantities than CFCs, halons posed, molecule-for-molecule, an even greater threat to the ozone layer.

    Science, diplomacy, and the Montreal Protocol

  • And achieving this gradual recuperation -- a process that would in any event take decades -- would require eliminating all CFCs, halons, methyl chloroform, and carbon tetrachloride, as well as strictly limiting future reliance on the HCFCs.

    Science, diplomacy, and the Montreal Protocol

  • The scientists concluded that unless rapidly growing CFC 113 and the highly potent halons were also included, their emissions would lead to major depletion of stratospheric ozone.

    Science, diplomacy, and the Montreal Protocol


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