Transcription of What is Ozone? Timeline of Stratospheric Ozone Depletion ...
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What is Ozone? Timeline of Stratospheric Ozone Depletion ...
What is Ozone ? Ozone (O3) is a molecule made up of three atoms of oxygen (O), and is mostly found in the strato-sphere, where it protects us from the Sun s harmful ultraviolet (UV) radiation. Although it represents only a tiny fraction of the atmosphere, Ozone is crucial for life on in the stratosphere a layer of the atmosphere between 15 and 50 kilometers (10 and 31 miles) above us acts as a shield to protect Earth s surface from the sun s harmful ultraviolet radiation. With-out Ozone , the Sun s intense UV radiation would sterilize the Earth s surface. With a weakening of this shield, more intense UV-B and UV-A radiation exposure at the surface would lead to quicker sunburns, skin cancer, and even reduced crop yields in , near the surface where we live and breathe, Ozone is a harmful pollutant that causes dam-age to lung tissue and plants.
measure several other atmospheric constituents in addition to ozone.) ground-based instrument. Rayleigh-scattering (one of many) More UV-B is absorbed as it passes a 2. nd. time through the ozone. space-based instrument. o z o n e l a y e r Earth’s surfac e t o p o f t h e a t m o s p h ere. Some UV-B is absorbed by the atmosphere and the ...
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