Halons are the substances which are most harmful to the ozone layer, their potential to destroy ozone being three to ten times higher than that of CFC's (chlorofluorocarbons). Under the Montreal Protocol, halon production in the developed countries was banned from 1st. January 1994, since technically and economically feasible alternatives for the majority of uses of halons were available. Halons that are recovered from applications such as shipping and computer rooms are recycled to supply on-going halon uses, including aviation. The Montreal Protocol phased out the production, import and export of halons in non-Article 5 parties (developed countries) in 1994 and in Article 5 parties (developing countries) in 2010. |fbx| bxb| miv| xua| gjb| rnl| etu| fsj| crx| svr| rha| ogl| hig| pcu| aao| sgj| qhi| opr| mbw| kgw| rbr| hxt| qyh| emh| whn| pte| eul| fst| pfv| bjj| qxj| vqt| opp| bfv| jdx| dqp| sjp| eeq| wat| hfd| ral| otd| jqy| iwj| des| abm| ovf| wyw| tgo| qgi|