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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
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?



Point vs non point source pollution1
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


Point source pollution
Point Source Pollution

  • Examples:

    • Discharge from pipe

    • Leak at chemical plant or storage tank

    • Oil Spill (BP 2010)







Non point source pollution
Non-Point Source Pollution

  • Pesticides

  • Fertilizers

  • Animal Waste

  • Road Salt

  • Litter

  • Sediment Runoff

  • Oil and Gasoline



Nonpoint acid rain
NonPoint – Acid Rain


Nonpoint salting roads
NonPoint – Salting Roads


You may have seen this
You may have seen this…

  • Rainbow stain is created when motor oil leaks from vehicles onto roadways


People pollution
People Pollution

  • Lawn fertilizers and pesticides




Why are they bad
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


Controlling pollution
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 $$$


Non point regulation
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


Watershed management
Watershed Management

  • Land Use affects water quality

  • Rain washes pollutants from watershed into water bodies

  • As urbanization increases, NPS pollution increases


Nonpoint urban run off
NonPoint – Urban Run-Off


Storm water management
Storm water Management

Storm drains bring storm water directly to local waterways, NOT a

Treatment plant!


The storm water dilemma
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



Farms riparian buffer zones
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


What can you do
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


Wrapping up
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?


Extra information
Extra Information

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


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