your notebook Here is the definition of water pollution The introduction of chemical physical or biological agents into water that degrade water quality and adversely affect the organisms that depend on the water ID: 655188
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Slide1
Warm Up Question – In your notebook
Here is the definition of water pollution:
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? Slide2
Point vs. Non-Point Source PollutionSlide3
Point vs. Non-point Source Pollution
Point Source Pollution
Pollution discharged from a single source
Source can be identified
Can be regulated by law
Non-Point Source
Many sources
Difficult to identify origin
“People pollution”
Difficult to regulateSlide4
Point Source Pollution
Examples:
Discharge from pipe
Leak at chemical plant or storage tank
Oil Spill (BP 2010)Slide5
Point - IndustrialSlide6
Point – Leaking Underground Storage TanksSlide7
Point – Unlined LandfillsSlide8
Point – Leaking Septic TanksSlide9
Point – Acid Drainage from MinesSlide10
Non-Point Source Pollution
Pesticides
Fertilizers
Animal Waste
Road Salt
Litter
Sediment RunoffOil and GasolineSlide11
Non-Point PollutionSlide12
NonPoint – Acid RainSlide13
NonPoint – Salting RoadsSlide14
You may have seen this…
Rainbow stain is created when motor oil leaks from vehicles onto roadwaysSlide15
People Pollution
Lawn fertilizers and pesticidesSlide16
When nobody’s looking…Slide17
When nobody’s looking…Slide18
Review- Point v
. Non-point Examples
POINT
Source
NON-POINT
SourceSlide19
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, wildlifeSlide20
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 $$$Slide21
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 wasteSlide22
Watershed Management
Land Use affects water quality
Rain washes pollutants from watershed into water bodies
As
urbanization
increases, NPS pollution increasesSlide23Slide24
NonPoint – Urban Run-OffSlide25
Storm water Management
Storm drains bring storm water directly to local waterways, NOT a
Treatment plant!Slide26
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 NJSlide27
Silt fences- keeps sediments ON SITESlide28
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 waterSlide29
What can you do to prevent non-point source pollution?Slide30
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 vehicleSlide31
How are watersheds
,
aquifers
(groundwater) and
surface water
all connected to point/non-point source pollution?Slide32
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?
Slide33
Extra Information
“The Clean Water Book”
http://www.nj.gov/dep/watershedrestoration/
waterbook_tble.html
“
Frogline
” Video on NPS Pollution-
http://youtu.be/HhlPtNX5XTM