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Welcome to the Air Cleaning Department

Join us on the GEN.club site as we investigate air cleaning eco-services and learn about the composition of air, the effects of air pollution on plants, and the role of trees in purifying the air. Discover how we can help maintain clean air on Garden Earth.

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Welcome to the Air Cleaning Department

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  1. Welcome to the Air Cleaning Department

  2. Every place on Earth is an ecosystem, includingour club site.

  3. In today’s GEN club adventure, we will investigate air cleaning eco-services…

  4. …on our club site.

  5. What is in the Air Around Us? Gases: • Nitrogen: 79% • Oxygen: 21% • Carbon dioxide: 0.03% • Trace amounts of many other molecules

  6. What is in the Air Around Us? Particulates: • Dust • Salt spray • Material from volcanoes • Soot from forest fires

  7. Earth’s Early Atmosphere Volcanic activity produced a methane-rich atmosphere

  8. Earth’s Early Atmosphere Bacteria that used methane as a carbon source changed composition of air

  9. Earth’s Early Atmosphere • Later, new species of bacteria developed which could use sunlight for energy. • Photosynthesis • Oxygen is made!

  10. How do plants change the composition of the air? Gas exchange in leaves Stomata • Special cells that allow gas to move in and out of the leaf.

  11. Gas Exchange in Leaves Once inside the leaf, gases undergo chemical reactions with the plant’s cells Guard cells

  12. Let’s take a moment and thank trees for the oxygen they give us. • Everyone stand up and hold your arms out like the limbs of a tree. • Close your eyes and imagine yourself as a tree. • Take a deep breath in, then out. • Take a moment to thank trees and other plants for their gifts to us.

  13. What other things are in the air? Man-made pollutants • Sulfur dioxide • Nitrogen oxides • Carbon monoxide • Ozone

  14. Effects of Air Pollution on Plants • Damage to leaves • Poor growth • More sensitive to disease and pests • Root ecosystem effects Gene Daniels, U.S. EPA

  15. Can some plants withstand air pollutions? Can some plants rid the air of pollutants? • Spider plants • Pothos • Philodendron

  16. Let’s meet some of the other workers in the Air Cleaning Department Redbud Longleaf Pine Eastern Red Cedar White Oak

  17. What threatens Air Purification on Garden Earth? Deforestation

  18. What threatens Air Purification on Garden Earth? • Deforestation • Exhaust from cars

  19. What threatens Air Purification on Garden Earth? • Deforestation • Exhaust from cars • Exhaust from power plants

  20. What threatens Air Purification on Garden Earth? • Deforestation • Exhaust from cars • Exhaust from power plants • Acid rain

  21. How does Air Pollution hurt organisms? Species Vulnerability • Plants • Lichens • Mosses • Oaks • Firs

  22. How does Air Pollution hurt organisms? Species Vulnerability • Animals • Invertebrates • Fish

  23. How does Air Pollution hurt organisms? Species Vulnerability • Animals • Amphibians • permeable skin is sensitive to chemicals

  24. What will we do? To learn about the Air Cleaning Department, we’ll… • meet Old Man Spruce and his workers. • extract pigments from leaves.

  25. What will we do? • To learn about the Air Cleaning Department, we’ll… • explore the trees around us and see how they • clean the air. • discover how trees are • protected and cared for • around the globe.

  26. How can we help Garden Earth maintain clean air? • Plant trees • Use cars wisely • Combine trips • Choose fuel efficient vehicles when replacing cars • Conserve energy in your home and school

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