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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
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
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!
Example: Water treatment system
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?