1. Week 28
• Explain that ozone is continuously being formed and broken down in the stratosphere by ultraviolet radiation.
• Describe, using equilibria, how the ozone concentration is maintained in the ozone layer, including the role of ultraviolet radiation.
• Outline the role of ozone in the absorption of harmful ultraviolet radiation and the resulting benefit for life on Earth.
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2. Week 28 Ozone, O3 © Pearson Education Ltd 2008
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3. Ozone in the atmosphere
Week 28
Ozone in the atmosphere
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4. Absorption of UV radiation by the ozone layer
Week 28
Absorption of UV radiation by the ozone layer
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5. Week 28
• Understand that radicals from CFCs and NOx may catalyse the breakdown of ozone.
• Explain that apparent benefits may be offset by unexpected and detrimental side effects.
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