Sentences with phrase «depleting halons»
Not exact matches
The Montreal Protocol agreement beginning in 1987 regulated ozone depleting substances, such as chlorine - containing chlorofluorocarbons and bromine - containing halons.
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Firefighters have called on the world's users of halons not to destroy the ozone - depleting chemicals — or worse, release them into the air — as old fire - extinguishing systems are junked.
Some halon abundances will also grow in the future while current halon reserves are being depleted.
Other classes of GHGs are included in the Montreal Protocol for Substances that Deplete the Ozone Layer and its subsequent amendments and are the chlorofluorocarbons (CFCs), halons, and chlorine - and bromine - containing (halogenated) solvents (methyl chloroform (CH3CCl3), carbon tetrachloride (CCl4), bromochloromethane (CH2BrCl), etc.).
The stratospheric ozone layer has become substantially depleted throughout much of the globe since the 1980s because of enhanced human production and use of ozone - depleting chemicals, such as chlorofluorocarbons, halons, and others, during the 20th century.
The discovery that CFCs — as well as halons, carbon tetrachloride, methyl chloride, methyl chloroform, and methyl bromides (collectively grouped as ozone depleting substances [ODS]-RRB--- were so damaging to the ozone, made worldwide headlines.