1 / 22

What types of pollution exist in our water?

What types of pollution exist in our water?. Pathogens. Disease causing organisms such as bacteria, viruses, protazoa and parasitic worms. Don't Drink the Water!!!. Organic Matter: Where did they come from?. Agricultural Run-off. Nutrients/Organic Matter  Eutrophication. Acid Rain.

kalila
Download Presentation

What types of pollution exist in our water?

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. What types of pollution exist in our water?

  2. Pathogens Disease causing organisms such as bacteria, viruses, protazoa and parasitic worms

  3. Don't Drink the Water!!!

  4. Organic Matter: Where did they come from?

  5. Agricultural Run-off

  6. Nutrients/Organic Matter  Eutrophication

  7. Acid Rain

  8. Salting Roads

  9. Thermal Pollution • Changed dissolved oxygen • Alters distribution of organisms among major and minor communities. • Death of some types of animals • Changes to reproductive powers and increased susceptibility to disease • Changes in migration time and pattern may be affected. • Decrease in productivity of the water body . • Economic and environmental damage

  10. Toxic Substances - Cadmium • From Mining • From Burning Fossil Fuels • From Leaking Batteries • Known Carcinogen

  11. Toxic Substances - Lead Corrosion of household plumbing systems Short term exposure: Gastrointestinal distress Long term exposure: Liver or kidney damage

  12. Toxic Substances - PCBs • http://www.youtube.com/watch?v=AlWLBRQo278

  13. Toxic Substances – Agent Orange • Used as an herbicide in Vietnam– military strategy • Killed hundreds of thousands of Vietnamese people • Caused major birth defects in hundreds of thousands of Vietnamese children • Biomagnifies through the food chain • Carcinogenic

  14. Toxic Substances - Mercury

  15. Toxic Substances - Mercury

  16. Toxic Substances - Mercury • Link to Eating Mercury Safe Fish Pocket Guides by Region

  17. Toxic Substances - DDT • Pesticide used largely in 40’s and 50’s to kill insects that carried diseases like Typhus and Malaria (efforts were unsuccessful) • Health Effects exposed in Rachel Carson’s “Silent Spring” – helped lead to its ban in 1972

  18. Toxic Substances - DDT • Biomagnifies - putting top predators most at risk (especially predatory birds) • Thins shells of birds • Linked to decline of Bald Eagle, Brown Pelican, Peregrine Falcon and Osprey • Also linked to reproductive problems and endocrine problems in humans

More Related