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Water pollution


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Water pollution

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