1 / 10

Eutrophication

Eutrophication. To Much Nutrients!. Definition & Types. Eutrophication = Increase in algal bloom as a reaction to increased levels of nutrients in a body of water Eutrophication : “Ecosystem response to the addition of artificial or natural substances to an aquatic environment ” Types :

alize
Télécharger la présentation

Eutrophication

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Eutrophication To Much Nutrients!

  2. Definition & Types • Eutrophication = Increase in algal bloom as a reaction to increased levels of nutrients in a body of water • Eutrophication : • “Ecosystem response to the addition of artificial or natural substances to an aquatic environment ” • Types : • Natural – natural increase in nutrients to body of water • Cultural – increase in nutrients to body of water due to unnatural causes

  3. Location • Gulf of Mexico • Black Sea • Baltic Sea • Chesapeake Bay • Long Island

  4. Pollution Causes • Fertilizer runoff • Farms, golf courses, or treated lawns. • Sewage contaminate • Unbalanced food web

  5. Environmental Consequences • Kill off marine populations • Disrupt natural order (food webs) • Promotes invading species • Decreased biodiversity • Toxicity

  6. Conservation Efforts • Introducing shellfish to body of water • Plant trees to hold solid soil • Farmers keep soil in fields and out of waterways • Protect groundwater resources • Teach the values of conservation in school

  7. Costs • 4.3 billion dollars a year spent on water clean up in U.S. • 44 million a year spent on prevention of nutrient pollution • Tiete river cleanup (4 billion dollars over 10 years) Brazil • England – 150 million spent a year • Dramatic decline in real estate (lake front property)

  8. Applicable Legislation • Surface Water Standards Act • Prevents bodies of water from become heavily polluted • Clean Water Act • Eliminating release of toxic substances into water • Prevention Policy • Regulates discharge of sewage into ecosystems • Shore Protection Act • Prevents transportation of waste over shorelines • Cleanup Enforcement Act • Requires parties responsible for damage to fund clean up

  9. Extra Facts • Estimated $17 million more per year spent on cleanup • (1990) 48% of North America’s freshwaters were effected by eutrophication • (1990) 54% of Asia’s freshwaters were effected by eutrophication • (1990) 53 % of Europe’s freshwaters were effected by eutrophication • (1990) 41 % of South America’s freshwaters were effected by eutrophication

  10. Literature Cited http://www.youtube.com/watch?v=UGqZsSuG7ao • Holt Environmental Science Textbook • http://en.wikipedia.org/wiki/Eutrophication • http://toxics.usgs.gov/definitions/eutrophication.html • http://www.nature.com/scitable/knowledge/library/eutrophication-causes-consequences-and-controls-in-aquatic-102364466 • http://www.sciencedaily.com/articles/e/eutrophication.htm

More Related