Transcript Document

Types of pollution are1.Air Pollution.
2.Water Pollution.
3.Noise Pollution.
4.Land Pollution.
1.Smoke from chimneys of factories.
The Police - Synchronicity 2 - YouTube
2.Smoke from Vehicles.
Discuss L.A, TORONTO, LONDON’S MOTHS , Beijing
3.Smoke from fires.
1. Car pooling.
2. get a regular pollution emissions check of our
vehicle. (RETIRE YOUR RIDE, CASH FOR CLUNKERS)
3. use a bicycle or public transit for going to near by
places.
4.Chimneys of factories should be fitted with filters to
prevent smoke from coming out into the atmosphere.
1.Factories throw their waste in water bodies.
2.People bathe and wash clothes in water bodies.
3.Some oil filled ships sink
4.Leeching of minerals into nearby water from
mining and construction
1.Factories should not throw their waste in water bodies.
Sydney Tar Ponds Featured on Today in America with Host Terry Bradshaw – YouTube
http://www.ctvnews.ca/w5/sydney-tar-ponds-have-been-cleaned-up-but-ghosts-of-toxic-pastremain-1.1533919
2.People should not bathe and wash clothes in rivers or lakes.
3.People should not take their animals to take baths in rivers or lakes.
1.Jet planes.
2.Loud speakers.
3.Jack hammers and blasting
4.Factories
5.Road traffic and horns
1.We should not use loud speakers.
2.Factories should be made out of the city.
3.There should be not more noise making
vehicles on the roads.
1. deforestation
2.Plastic (bags, bottles) is the main source of land
pollution (and sea).
3.People throw garbage on roads
4.Some industries and individuals throw their waste on
land (illegal dumping)
Water Pollution
Types and Sources of Water Pollution
#1 problem - Eroded soils
Organic wastes, disease-causing agents
Chemicals, nutrients
Radioactive waste
Point and Nonpoint Sources
NONPOINT SOURCES
Rural homes
Cropland
Urban streets
Animal feedlot
Suburban
development
POINT
SOURCES
Wastewater
treatment
plant
Factory
Major Problem: Drinking Water
 1/2 of world’s
people drink
polluted water
 Safe Drinking
Water
Legislation
 Major Issue :Walkerton Ontario,
Town water was ecoli infested
(bacteria)
Pollution of Surface Water: Streams
 D.O., B.O.D., fecal coliform bacteria count
Pollution of Surface Water: Lakes
Cultural eutrophication
 Slow
turnover
Accumulation
of nutrients,
excessive plant
growth, algae
blooms
Case Study: The Great Lakes
Mississippi
River Basin
Ohio
River
Missouri
River
Mississippi
River
LOUISIANA
Mississippi
River
Depleted
Oxygen
Dead Zone
Gulf of Mexico
Thermal Pollution
Suffocated
fish
Altered food web
Low
dissolved
oxygen
Decreased fish
population
Groundwater Pollution: Sources
 Cold temperatures
 Low flow rates
 Few bacteria
Hazardous waste injection well
Pesticides
Coal strip
mine runoff
De-icing
road salt
Pumping
well
Waste lagoon
Gasoline
station
Water pumping
well Landfill
Buried gasoline
and solvent tank
Cesspool
septic tank
Sewer
Leakage from faulty
casing
Accidental
spills
Discharge
Confined aquifer
Groundwater
flow
Groundwater Pollution Prevention
Monitoring aquifers - expensive
Leak detection systems
Strictly regulating hazardous waste
disposal
Protecting recharge areas
- aquifer classifications
Ocean Pollution: dumping and oil
Oil Spills: eg Exxon Valdez, BP Gulf of
Mexico
 Sources: offshore wells, tankers, pipelines and
storage tanks
 Effects: death of organisms, loss of animal
insulation and buoyancy, smothering
 Significant economic impacts
 Short-term cleanup problems - beaches, wildlife
 Long-term cleanup problem - persistence
(decades)
Technological Approach: Sewage Treatment
Mechanical and biological treatment
Technological Approach: Septic Systems
Require suitable soils and maintenance
Air Pollution
 Harmful to life or materials
 Materials - soiled, corrosion of metals
 Plants - stunting, damage (crops, forests)
 Animals - respiratory, nervous system damage
 Humans - eye irritation, headache, dizziness,
bronchitis, emphysema, cancer
- young, old, heart and lung patients susceptible
Air Pollution
 Primary pollutants
 Secondary pollutants
Natural Sources - most primary
pollutants
Decay processes, winds, volcanic
eruptions, sea spray
Widely dispersed
- do not reach harmful levels
Human Sources - more important
Concentrated where the people are
1) Stationary fuel
combustion
2) Industry
3) Transportation
Air pollution problems influenced
by:
Topography (thermal inversions
between valleys cause smog like
Mexico City)
Temperature Inversions
Especially in valleys
Los Angeles, Denver, Mexico City
Industrial Smog
Cool, moist
Primary
pollutants
Worst in winter,
at night
Chicago, London
Photochemical Smog
 Warm, dry
 Secondary
pollutants
 Worst in
summer, midday
Los Angeles
NO from cars
Widespread Secondary Air Pollution: Acid
Deposition
Acid Deposition in the U.S.
Acid Deposition and Aquatic Systems
 Fish declines
 Undesirable
species
 Aluminum
toxicity
 Acid shock
Acid Deposition, Plants, and Soil
 Nutrient
leaching
 Heavy metal
release
 Weakens trees
Industrial Smog Control sulfur dioxide and particulates
Burn less fossil fuels
Use alternative energy sources
Burn low-sulfur coal
Remove sulfur from coal (chemicals)
Photochemical Smog Control - nitrous oxide
emissions
Use mass transit
Develop new engines like electric
fuel cell, biodiesel, hyrdrogen
Develop new fuels
Develop new emission controls
Sanitary Landfill
Changing Landfills
Filling up rapidly
Difficult finding new sites
- restrictions
- NIMBY - NOT IN MY BACK YARD!
Recycling
Easily isolated
from other
wastes
Large
quantities (6080% of wastes)
Valuable
IN THE NEWS JANUARY 2013
•
Liberal environment critic Andrew Younger says the absence of compact fluorescent
light bulb (CFL) recycling regulations is alarming, considering federal regulations will
effectively ban the sale of standard incandescent bulbs.
"Right now CFLs are being put right into our landfills," said Younger. "Federal
regulations will mean more of these bulbs are purchased and will require appropriate
disposal.” Younger says he’s repeatedly called for the government to implement
regulations in Nova Scotia but the NDP ignored the calls while each day more mercury
enters Nova Scotian landfills.
Younger notes a recent Environment Canada report that warns of the dangers of
continuing without a recycling plan in place - something the Liberal Caucus has been
warning of for over two years. “Provinces such as Alberta and Ontario have
implemented programs and regulations to recycle light bulbs of all kinds, creating jobs,
reducing waste, and protecting waste water,” says Younger. “In Nova Scotia, light bulbs
can be simply tossed into landfills, both from residential and commercial properties.
This means mercury, which does not degrade in the environment and accumulates
overtime may leach into the surrounding groundwater.”
Younger says with less than a year to act, the need for action is urgent.“This government
takes a long time developing and releasing strategies, but, in this case, we don’t have a
lot of time,” says Younger. “Reducing energy usage for residential and commercial
properties is an important tool in energy conservation but little has been done to address
the issue of disposal.”
"We have companies in Nova Scotia that can handle the disposal of these light bulbs. It's
time for the Dexter government and the environment minister to stop dilly dallying and
tell Nova Scotians his plan for disposal of these products."
Recycling Aluminum, Wastepaper, and Plastics
40% of aluminum recycled in US
Recycled aluminum uses over
90% fewer resources
10% or less of plastic recycled in US
Plastics can be very difficult to recycle
Burning Wastes
Mass burn incineration
Air
pollution
Waste to
energy
ENVIRONMENT CANADA
HANDLES THIS IN CANADA
• TAR PONDS-steel making process
remnants, carcinogens
• HALIFAX HARBOUR-sewage treatment
• NIMBY-EXAMPLES?
• TAR SANDS TAILING PONDS
• Lake Athabaska Pollution due to Oil
Industry
Trans Canada Keystone XL Pipeline to
be approved by Obama Administration?
•
“Since only 3% of oil sands oil has been used to date
…”game over” for environment if we burn it all.”
-Keystone xl rejected by State dept and Obama
- “Big Oil’s” first REAL loss usually $ talks
• Obama says still wants US to move away from foreign oil
-Environmentalists, scientists and native groups won.
-Republicans demanded a decision before November
election and forced Obama to rush-play to his constituents
• Trans Canada can reapply. Harper unhappy. Will sell to
China if Obama does not approve deal.
Ezra Levant Ethical Oil Versus Conflict Oil - YouTube
• http://www.theglobeandmail.com/report-onbusiness/industry-news/energy-and-resources/to-harpersprofound-disappointment-obama-rejectskeystone/article2306625/
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Air Pollution – YouTube
Los Angeles Skyline with freeway smog – YouTube
Bill Maher on Los Angeles Smog – YouTube
Johnny talks about the current smog conditions in Los Angeles – YouTube
Heavy Smog, Called "Fog" Covers Beijing – YouTube
Acid rain – YouTube
Acid Rain Eating Washington, D.C. – YouTube
Rachel Carson Introduction – YouTube
RACHEL CARSON AND DDT BAN – YouTube
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Tar Pond Song -Sydney NS Terminal Drive – YouTube
Rick Mercer Report : Save the Sydney Tar Ponds – YouTube
How the Sewage Plant Broke – YouTube
Biosolids cause stink in HRM - Nova Scotia - CBC News
Water Pollution: Saving the water – YouTube
Pacific Garbage Dump- Nightline – YouTube
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HouseSmarts Green Piece "Noise Pollution" Episode 111 – YouTube
Campaigners fight noise pollution in bustling Mumbai – YouTube
Light pollution, the problem – YouTube
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Joni Mitchell Big Yellow Taxi Lyrics - YouTube
Michael Jackson - Earth Song - YouTube