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Understanding the Ozone Layer: Protection Against UV Radiation and Its Future

The ozone layer is crucial for protecting life on Earth from harmful ultraviolet (UV) radiation, which can cause skin cancer. It features different types of UV rays: UVC (most dangerous, stopped by oxygen), UVB (stopped by ozone), and UVA (least harmful, not filtered by ozone). The ozone layer is thinnest at the equator and thickest in the northern hemisphere, with the only ozone hole present over Antarctica. Although there have been concerns about ozone depletion, successful actions to reduce harmful HFC gases assure that the ozone layer will remain intact for the future.

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Understanding the Ozone Layer: Protection Against UV Radiation and Its Future

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Presentation Transcript

  1. Ozone layer, is it disappearing?

  2. Protects against Ultraviolet radiation • UV-radiation can give you skin cancer There is: • UVA, UVB and UVC • UVC most dangerous • UVA least dangerous • UVC stopped by ordinary oxygen • UVB stopped by Ozone • UVA not stopped

  3. Ozone hole only over Antarctica

  4. The ozone miracle • Ozone is created when UVC collide with ordinary oxygen. UVC is completely stopped by oxygen • Oxygen is created when UVB collide with ozone. • Ozone will never disappear

  5. Ozone in Sweden

  6. Ozone variation

  7. Ozone in the tropics

  8. The strongest UV radiation

  9. Ozone layer globally

  10. Important facts about ozone • Thinnest at equator • Thickest at the northern hemisphere • Only ozone hole around south pole • Most ozone is produced at the equator and transported by the winds to the north and south.

  11. Ozone layer will never disappear in the future. We have stopped dangerous HFC-gases that made the ozone layer thinner.

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