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Water pollution - PowerPoint PPT Presentation


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Water pollution. Water Pollution. CAUSES 1. Industrialization 2. Rapid human population growth. Water Pollution. Pollution discharged from a single source is called POINT SOURCE POLLUTION Factory dumping Oil spill Hot water. Water Pollution.

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Water pollution


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    Presentation Transcript
    1. Water pollution

    2. Water Pollution CAUSES 1. Industrialization 2. Rapid human population growth

    3. Water Pollution • Pollution discharged from a single source is called POINT SOURCE POLLUTION • Factory dumping • Oil spill • Hot water

    4. Water Pollution • Pollution discharged from many sources is called NON-POINT SOURCE POLLUTION • Dumping into the water (cruise ships, cargo ships) • Dumping chemicals down the drain

    5. Non-point Source Pollution • Farms: herbicides, pesticides, fertilizers, feces • Chemicals added to roads • Oil and gasoline

    6. 1. Thermal Pollution • Pollution caused by the heating of a body of water affecting the organisms that live there

    7. Salton Sea • Inland saline sea in California

    8. 2. Groundwater Pollution • Pollution caused by chemicals seeping into the groundwater supply • Pesticides • Herbicides • Fertilizers

    9. Love Canal, Niagara • 1900’s • 1950’s • Asthma, miscarriages, mental retardation • 1970’s • 56% of the children in the area were born with birth defects • 1980’s

    10. 3. Ocean pollution • Pollutants being dumped into the ocean • Oil spills • Cruise ship garbage

    11. Bikini Atoll • 1946 to 1958 • Hydrogen bomb test site

    12. Effects of Pollution

    13. 1. Biomagnification • The accumulation of pollutants in a food web • Pollutant levels increase as you go up the food chain

    14. 2. Artificial Eutrophication • In imbalance of nutrients in an aquatic ecosystem • Causes overgrowth of algae

    15. 3. Diseases • Caused by water borne bacteria • Cholera • Typhoid • Schistosomiasis

    16. 4 million children die each year from diarrhea caused by contaminated water

    17. 4. Clean Up Costs • Takes a lot of money, time and resources to clean up water pollution

    18. Clean up Costs • Exxon Valdez • $2 billion in clean up • $1 billion in legal fees • Deepwater Horizon • $20 billion

    19. Deepwater Horizon Oil Spill • 8,332 species • 1,200 fish • 200 birds • 1,400 mollusks • 1,500 crustaceans • 4 sea turtles • 29 marine mammals • 6,814 dead animals have been collected • 6,104 birds • 609 sea turtles • 100 dolphins and other mammals • 1 reptile

    20. 5. Acid Rain • Acidic material deposited when it rains • Erodes buildings, and harms vegetation

    21. What can we do?? 1. Educate People

    22. 2. Enforce pollution regulations

    23. 3. Recycling materials

    24. 4. Pack it in-Pack it out