ozone layer depletion

The fragile shield of ozone is been damaged by chemicals released on earth. The main chemicals that are depleting stratospheric ozone are chlorofluorocarbons which are used in refrigerators, aerosols, and as cleaners in many industries, and halons, which are used in fire extinguishers. The damage is caused when these chemicals release highly reactive forms of chlorine and bromine. Over the past 30 years ozone levels over parts of Antarctica have dropped by almost 40% during some months and a hole in ozone concentrations is clearly visible in satellite observations. (Source: WRIGHT)



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Displaying results 1 - 3 of 3 record(s) tagged with this keywordClick/tap on any title to see full details of the record
Zunckel M, Venjonoka K, Pienaar JJ, Brunke E-G, Pretorius O, Koosialee A, Raghunandan A, van Tienhoven AM 2004. Surface ozone over southern Africa; synthesis of monitoring results during the cross border air pollution impact assessment project. Atmospheric Environment 38 (36) 6139 - 6147
Downloadable files:
Attachment Size
Surface ozone over southern Africa.pdf 297.31 KB
Zunckel M, Koosailee A, Yarwood G, Maure G, Venjonoka K, van Tienhoven AM, Otter L 2006. Modelled surface ozone over southern africa during the cross border air pollution impact Assessment project. Environmental modelling and software 21 (7) 911 - 924
United Nations Environment Programme (UNEP) 2001. The Vienna Convention for the Protection of the Ozone Layer.
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Vienna Convention for the Protection of the Ozone Layer.pdf 74.57 KB