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Understanding Water Pollution: Sources, Effects, and Solutions

This document delves into the concept of water pollution, defining key terms such as pollutants, sources, and effects. It distinguishes between point sources, like coal-fired power plants and sewage treatment outfalls, and nonpoint sources, such as agricultural runoff and urban runoff. The material also highlights the importance of keeping storm drains clear, emphasizing that only water should enter these systems. Additionally, it discusses the pollutant of the day: plant nutrients, which can deplete oxygen in water bodies, leading to hypoxic "dead zones."

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Understanding Water Pollution: Sources, Effects, and Solutions

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Presentation Transcript

  1. “Water” you waiting for? Please get out a piece of paper for today’s work and read the board!

  2. Key ideas • Pollutant – something that doesn’t belong and causes harm • Source – place where pollution is created • Effect – what the pollutant does; the harm it causes

  3. Two types of sources • point sources – specific location that can be identified • nonpoint sources – spread out, may not be easy to identify. • For each of the following examples, POINT if it’s a POINT source!

  4. Coal-fired power plant

  5. Clear cut logging operation

  6. Agricultural fields: Point or non point?

  7. Outfall from sewage treatment plant

  8. CAFO/Feedlot: Point or non point?

  9. City streets

  10. Active or abandoned mine

  11. Mine tailings piles/gangue

  12. Golf course

  13. Factory effluent

  14. Petroleum refinery

  15. Suburban lawns

  16. Storm drains • Carry water from streets to local bayou/water way • ONLY WATER should go down these! • NO: • Litter • Leaves • Pet poop • Oil/paint

  17. Building drains go to the sewage treatment plantStorm drains go to the water way

  18. Key ideas • Pollutant – something that doesn’t belong and causes harm • Source – place where pollution is created • Effect – what the pollutant does; the harm it causes

  19. POLLUTANT OF THE DAY: PLANT NUTRIENTS (Nitrogen and phosphorus)

  20. Plant nutrients (nitrogen and phosphorus) commonly found in fertilizers

  21. Other sources of plant nutrients • Untreated sewage • Manure from livestock • Pet poop • Detergents

  22. Hypoxic zones “Dead zones” – form in the summer Gulf of Mexico

  23. Global dead zones

  24. PUZZLE TIME!

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