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Eutrophication ppt

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1. Eutrophication is the process by which excessive nutrients like nitrogen and phosphorus cause excessive growth of algae and plants in bodies of water, reducing oxygen levels. 2. Humans can exacerbate eutrophication through point sources like sewage and industrial discharges, and non-point sources like agricultural and urban runoff. 3. The results of eutrophication include algal blooms, fish kills from lack of oxygen, and in extreme cases "blue baby syndrome" in infants exposed to high nitrate levels in drinking water.

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Eutrophication ppt
Eutrophication ppt
Eutrophication ppt
…..EUTROPHICATION
Eutrophication ppt
Eutrophication ppt
Compare these 2 ponds, the bottom one experiencing eutrophication.
When lakes, streams and estuaries are over fertilized, excessive production of aquatic organic matter can become a water quality problem and as a result the Eutrophication process can be enhanced!
However, humans in their everyday activities can exacerbate the process: Point sources (can locate the cause)  Sewage treatment plant discharges  Storm sewer discharges  Industrial discharges Non-point sources (can’t locate the cause, it’s everywhere)  Atmospheric deposition  Agricultural runoff (fertilizer, soil erosion)  Septic systems
Eutrophication ppt
Eutrophication ppt
1. Fertilizer flows into water causing…. 2. Increased plant growth on the surface of water, causing….. 3. Decreased light in lower levels of water, causing… 4. Plants in lower levels of water to die, causing…. 5. Decay using up O2 and increasing CO2,causing…... 6. Death of fish and other animals. STEPS OF EUTROPHICATION
Eutrophication ppt
LACK OF OXYGEN GROWTH OF BACTERIA DEATH OF PLANTS SUFFOCATION GROWTH OF PLANTS ADDITION OF NITRATES Eutrophication process in 6 stages
Before increases in nutrients:Before increases in nutrients:
Acceleration of Eutrophication :
Results of Eutrophication :
These fish died due to Eutrophication removing the oxygen.
Eutrophication ppt
Photo 1: Algal bloom in a lake. Algal bloom in a lake.
Fish mortality due to lack of oxygen in an Indonesian lake. Algal blooms, otherwise called "nuisance algae" or "harmful algal blooms", are toxic to plants and animals
Eutrophication ppt
Blue Baby Syndrome - An illness that begins when large amounts of nitrates in water are ingested by an infant and converted to nitrite by the digestive system. He nitrite then reacts with ox hemoglobin (the oxygen-carrying blood protein) to form metheglobin, which cannot carry oxygen. If a large enough amount of metheglobin is formed in the blood, body tissues may be deprived of oxygen, causing the infant to develop a blue coloration of their mucous membranes and possibly digestive and respiratory problems. This condition is also known as methemoglobinemia.
: Overgrowth of floating aquatic plants.
Eutrophication can be avoided by using minimal required amounts of chemical fertilizers or better still do away with them and use natural ones instead. Be sure not to have the fields close to the water bodies. Take extra care while using fertilizers during monsoons as due to run - off, they get transmitted to the water bodies. Then , they can cause blockage of water ways, death of marine life n breakage of food chain.
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Eutrophication ppt

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Eutrophication ppt

  • 7. Compare these 2 ponds, the bottom one experiencing eutrophication.
  • 8. When lakes, streams and estuaries are over fertilized, excessive production of aquatic organic matter can become a water quality problem and as a result the Eutrophication process can be enhanced!
  • 9. However, humans in their everyday activities can exacerbate the process: Point sources (can locate the cause)  Sewage treatment plant discharges  Storm sewer discharges  Industrial discharges Non-point sources (can’t locate the cause, it’s everywhere)  Atmospheric deposition  Agricultural runoff (fertilizer, soil erosion)  Septic systems
  • 12. 1. Fertilizer flows into water causing…. 2. Increased plant growth on the surface of water, causing….. 3. Decreased light in lower levels of water, causing… 4. Plants in lower levels of water to die, causing…. 5. Decay using up O2 and increasing CO2,causing…... 6. Death of fish and other animals. STEPS OF EUTROPHICATION
  • 14. LACK OF OXYGEN GROWTH OF BACTERIA DEATH OF PLANTS SUFFOCATION GROWTH OF PLANTS ADDITION OF NITRATES Eutrophication process in 6 stages
  • 15. Before increases in nutrients:Before increases in nutrients:
  • 18. These fish died due to Eutrophication removing the oxygen.
  • 20. Photo 1: Algal bloom in a lake. Algal bloom in a lake.
  • 21. Fish mortality due to lack of oxygen in an Indonesian lake. Algal blooms, otherwise called "nuisance algae" or "harmful algal blooms", are toxic to plants and animals
  • 23. Blue Baby Syndrome - An illness that begins when large amounts of nitrates in water are ingested by an infant and converted to nitrite by the digestive system. He nitrite then reacts with ox hemoglobin (the oxygen-carrying blood protein) to form metheglobin, which cannot carry oxygen. If a large enough amount of metheglobin is formed in the blood, body tissues may be deprived of oxygen, causing the infant to develop a blue coloration of their mucous membranes and possibly digestive and respiratory problems. This condition is also known as methemoglobinemia.
  • 24. : Overgrowth of floating aquatic plants.
  • 25. Eutrophication can be avoided by using minimal required amounts of chemical fertilizers or better still do away with them and use natural ones instead. Be sure not to have the fields close to the water bodies. Take extra care while using fertilizers during monsoons as due to run - off, they get transmitted to the water bodies. Then , they can cause blockage of water ways, death of marine life n breakage of food chain.