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Stratospheric Ozone Depletion

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The catalytic destruction reactions described so far,<br />

together with the Chapman cycle, account for the<br />

observed average levels of stratospheric ozone, they<br />

are unable to account for the ozone hole over<br />

Antarctica.<br />

The ozone depletion in the Antarctica is limited both<br />

regionally and seasonally. The depletion is too great<br />

and too sudden. These observations can not be<br />

explained by catalytic O 3 destruction by ClOx alone.

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