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Unformatted text preview: 3 + h v O 2 + O o O 2 >O 3 > O abundance o O 2 <O 3 <O o O and O 3 are interconverting very quickly o Catalyst for O 3 loss NO + O 3 N 2 O+ O 2 N 2 O + O NO+2O 2 Net: O+ O 3 2O 3 NO x is a catalyst for O3 loss but is not the only one. o CFC’s and Greenhouse gases have been increasing due to human activity. o Predicted in 1972 that ozone was going to be lost due to CFC’s, before the problem was actually observed. o Big disparity between O3 observed in August (more) and October in the spring(less). o Chlorine levels shooting up during ozone hole season. o Antarctic is far colder in the winter than the arctic- why ozone hole is in the so. Hem. o In arctic there is more land mass and mountains breaking up the air flow (polar stratospheric clouds). o Ozone levels have declined around the world in nonpolar regions....
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- Atmosphere, Ozone depletion, O3 N2O+ O2