Water pollution
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Transcript of Water pollution
![Page 1: Water pollution](https://reader036.fdocuments.net/reader036/viewer/2022081519/556d30dcd8b42aa95c8b45a1/html5/thumbnails/1.jpg)
Water Pollution7SCIENCE: Wed. Feb. 16
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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
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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
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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!
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Example: Water treatment system
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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?
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Video about Garbage in the Pacific Ocean