Friday 16 September 2011


So what exactly is eroding the ozone layer? Free radical catalysts like nitric oxide, nitrous oxide, hydroxyl, atomic chlorine and atomic bromine are the naturally occurring elements/compounds that cause the depletion of ozone. But the cause of the drastic degradation of ozone are man-made organohalogens- chlorofluorocarbons and bromofluorocarbons. Being highly stable, these compounds rise to the stratosphere where their reactions with UV rays liberate chlorine and bromine radicals. Each free radical initiates and catalyzes a chain reaction capable of breaking down over hundred thousand ozone molecules.

Here's a tribute to the ozone layer on ozone day.

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This work by Rohan Chakravarty is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.