8-30-2 Ozone Layer

8-30-2 Ozone Layer - The Ozone Layer The Earth's atmosphere...

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The Ozone Layer The Earth's atmosphere is divided into several layers. The lowest region, the troposphere, extends from the Earth's surface up to about 10 kilometers (km) in altitude. Virtually all human activities occur in the troposphere. Mt. Everest, the tallest mountain on the planet, is only about 9 km high. The next layer, the stratosphere , continues from 10 km to about 50 km. Most commercial airline traffic occurs in the lower part of the stratosphere. Source: World Meteorological Organization, Scientific Assessment of Ozone Depletion: 1998, WMO Global Ozone Research and Monitoring Project - Report No. 44, Geneva, 1998. As shown in the graph, most atmospheric ozone is concentrated in a layer in the stratosphere , about 15-30 kilometers above the Earth's surface. Ozone is a molecule containing three oxygen atoms. It is blue in color and has a strong odor. Normal oxygen, which we breathe, has two oxygen atoms and is colorless and odorless. Ozone is much less common than normal oxygen. Out of each 10 million air
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This document was uploaded on 09/16/2011.

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8-30-2 Ozone Layer - The Ozone Layer The Earth's atmosphere...

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