Key Facts about: Ozone Depletion
Atmospheric concentrations of major man-made ozone-depleting substances at Mace Head: 1987-2006
The Montreal Protocol has brought about significant reductions in the production and consumption of ozone depleting substances.
Measurements at Mace Head in Ireland show that background atmospheric concentrations of the principal ozone-depleting CFCs, CFC-11 and CFC-113, and carbon tetrachloride (CCl4), are now slowly declining, whilst ethyl chloroform (CH3CCl3) is declining at a faster rate.
Mace Head is in the Republic of Ireland. Its location on the Atlantic Coast allows relatively unpolluted air blown in from the Atlantic to be analysed to give baseline concentrations of substances in the atmosphere.
In Detail:
- Understanding Stratospheric Ozone Depletion
- Stratospheric Ozone Depletion and Possible Impacts of Ozone Depletion in the UK
- Agreements to limit Ozone Depleting Substances
Further Information:
- Source:
- University of East Anglia, University of Bristol
Data Tables:
Download Chart Data: Microsoft Excel
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Page last modified: 6 November 2007
Page published: 10 September 2003