Saturday 12 October 2013

Ozone depleting substances


Certain chemicals (such as chlorofluorocarbons, hydro- -chlorofluorocarbons and halons) are recognized as ozone-depleting substances (ODS) because they breakdown in the stratosphere and release chlorine or bromine, which destroy the stratospheric ozone layer. Most ODS are also

  greenhouse gases.


 Ozone depleting substances controlled by Montreal Protocol include: CFC's , Halon , Carbon Tetrachloride , Methyl Chloroform , Hydrobromofluorocarbons , Hydrochlorofluorocarbons , Methyl Bromide , Bromochloromethane

There are other ozone depleting substances, but their ozone depleting effects are very small in comparison to these controlled substances.
The Commonwealth Ozone Protection and Synthetic Greenhouse Gas Management Act 1989 controls the manufacture, import and export of these ozone depleting substances in Australia.
All bulk imports of these substances (except HCFCs and methyl bromide) are banned into Australia. See Legislation and Regulations: Ozone and Synthetic Greenhouse Gases. 

The Ozone Depleting Substances (Regulation and  Control)

 

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