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Published byDorcas Hawkins Modified over 9 years ago
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Water Pollution 7SCIENCE
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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 being dumped into: Oceans, lakes, rivers and groundwater – Ex: 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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