Water pollution
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Water pollution

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Water pollution Presentation Transcript

  • 1. Water Pollution
    7SCIENCE: Wed. Feb. 16
  • 2. What are some types of water pollution?
    Bacteria and viruses
    Untreated sewage and garbage
    Radioactive waste
    Chemicals like pesticides, fertilizers, herbicides
    Oil from cars
    Soaps
  • 3. What are some causes of water pollution?
    Humans and other organisms produce much of this pollution that can end up in: Oceans, lakes, rivers and groundwater
    Illegal management of waste:
    Dumping chemicals and garbage into water
    These pollutants can cause birth defects and health problems such as cancer and liver damage in humans and animals
  • 4. How can we manage this water pollution?
    Water treatment facilities
    Water is treated (cleaned) and returned for human use
    The large pollutants are filtered through many different processes
    Reducing water pollution by working together:
    Countries must try and keep water (for drinking and other uses) clean and safe!
  • 5. Example: Water treatment system
  • 6. How can we remove this pollution?
    Bioremediation
    Bio = life, remediation = fixing a problem
    This process uses living organisms to make a substance that is harmful or dangerous into one that is harmless or safe
    Bacteria break down the harmful wastes
    Can be used for many resources: soil and many types of water
    How can we reduce water pollution?
  • 7. Video about Garbage in the Pacific Ocean