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ARTICLE
Year : 2011  |  Volume : 34  |  Issue : 3  |  Page : 164-165

Ozone and Environment


1 Department of Prosthodontics, Faculty of Dental Sciences, CSM Medical University, Lucknow, India
2 Dhanvantri Charitable Hospital, Lucknow, India

Correspondence Address:
Bhaskar Agarwal
Department of Prosthodontics, Faculty of Dental Sciences, CSM Medical University, Lucknow
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0464.101690

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Each year for the past few decades during the Southern Hemisphere spring, chemical reactions involving chlorine and bromine cause ozone in the southern polar region to be destroyed rapidly and severely. This depleted region is known as the "ozone hole". Throughout the 20th century, discoveries and observations allow scientists to understand how human-made chemicals like chlorofluorocarbons create a hole in the ozone layer over Antarctica each spring.


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