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Warm Up Question – In your notebook

Warm Up Question – In your notebook. Here is the definition of water pollution: Water pollution is the introduction of chemical, physical, or biological agents into water that degrade water quality and adversely affect the organisms that depend on the water.

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Warm Up Question – In your notebook

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  1. Warm Up Question – In your notebook Here is the definition of water pollution: Water pollution is the introduction of chemical, physical, or biological agents into water that degrade water quality and adversely affect the organisms that depend on the water. • Would litter be considered water pollution?

  2. Point vs. Non-Point Source Pollution

  3. Point vs. Non-point Source Pollution Point Source Pollution Non-Point Source Many sources Difficult to identify origin “People pollution” Difficult to regulate • Pollution discharged from a single source • Source can be identified • Can be regulated by law

  4. Point Source Pollution • Examples: • Discharge from pipe • Leak at chemical plant or storage tank • Oil Spill (BP 2010)

  5. Point - Industrial

  6. Point – Leaking Underground Storage Tanks

  7. Point – Unlined Landfills

  8. Point – Leaking Septic Tanks

  9. Point – Acid Drainage from Mines

  10. Non-Point Source Pollution • Pesticides • Fertilizers • Animal Waste • Road Salt • Litter • Sediment Runoff • Oil and Gasoline

  11. Non-Point Pollution

  12. NonPoint – Acid Rain

  13. NonPoint – Salting Roads

  14. You may have seen this… • Rainbow stain is created when motor oil leaks from vehicles onto roadways

  15. People Pollution • Lawn fertilizers and pesticides

  16. When nobody’s looking…

  17. When nobody’s looking…

  18. Why are they bad? • Road Salt- changes salinity of freshwater • Pesticides- chemicals designed to kill • Fertilizers- eutrophication • Litter- wildlife, aesthetics ruined • Sediment- suffocates, blankets riverbed • Oil- affects oxygen levels, wildlife

  19. Controlling Pollution • Point Sources: • Industrial discharges are regulated by the NJ Dept. of Environmental Protection (NJDEP) or EPA • Monitored discharges • Cannot exceed certain limits on pollution • Once source is identified, we know who to blame • Fines $$$

  20. Non-Point Regulation • More difficult to monitor/regulate because we don’t know the source • Watershed Management, Education, Outreach • Impose Restrictions, Fines, Penalties • Silt fences for construction sites • Fines for littering, pet waste, illegal dumping • Farms have laws to regulate livestock waste

  21. Watershed Management • Land Use affects water quality • Rain washes pollutants from watershed into water bodies • As urbanization increases, NPS pollution increases

  22. NonPoint – Urban Run-Off

  23. Storm water Management Storm drains bring storm water directly to local waterways, NOT a Treatment plant!

  24. The Storm Water Dilemma • As urbanization increases • Impervious surfaces increase • More storm water is sent down drains at a faster rate • Localized flooding increases • Constant problem in NJ

  25. Silt fences- keeps sediments ON SITE

  26. Farms- Riparian “buffer zones” • Riparian vegetation = “near water” • Having native vegetation near streams and rivers catches sediments and nutrients (N&P) before they reach the water

  27. What can you do? • Non-point pollution prevention starts at home! • Don’t Litter! • Pick up after pets • Limit fertilizer/pesticide usage at home • Bring waste oil to auto body shop • Maintain your vehicle

  28. Wrapping Up… • What is the difference between point and non-point source pollution? • Name three examples of non-point source pollution. • What is the purpose of a riparian buffer zone?

  29. Extra Information • “The Clean Water Book” http://www.nj.gov/dep/watershedrestoration/waterbook_tble.html

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