final exam tuesday may 7 7 - 10 pm foellinger auditorium conflict exam: thursday may 9 sign up with...
TRANSCRIPT
Final Exam
Tuesday May 7
7 - 10 pm
Foellinger Auditorium
Conflict exam: Thursday May 9
sign up with Karin Nelson
EEE 105
http://www.life.uiuc.edu/animalbiology/105/Name: eee105 Password: prAIRie
7 - 10 pm
Final Exam
Tuesday May 7
7 - 10 pm
Foellinger Auditorium
Review: Sunday May 5
5 pm 112 Gregory
EEE 105
http://www.life.uiuc.edu/animalbiology/105/Name: eee105 Password: prAIRie
Final Exam
Tuesday May 7
7 - 10 pm
Foellinger Auditorium
Coverage: cumulative with special emphasis on March 4, 8, 11 & April 10 - May 1
EEE 105
http://www.life.uiuc.edu/animalbiology/105/Name: eee105 Password: prAIRie
Air PollutionAir Pollution Chapter 17
Acid RainAcid Rain
• SO2 - sulfur dioxide• coal burning
• NOx -- nitrates• traffic • Hydrocarbons•
solvents and trees• CO -- carbon monoxide
Acid RainAcid Rain
Acid RainAcid Rain
• Acidification of Lakes
• Erosion of limestone
Acid RainAcid Rain
• Acidification of Lakes
• Erosion of limestone
Acid RainAcid Rain
• Acidification of Lakes
• Erosion of limestone
• Stress on forests
Acid RainAcid Rain• The worst example:
Sudbury, Ontario
Nickel smeltingNickel smelting
world’s largest SOworld’s largest SO22 emitter emitter
Inco, Ltd.
Acid RainAcid Rain• The worst example:
Sudbury, Ontario
killed vegetation & lakeskilled vegetation & lakes
now capture SOnow capture SO22 and make sulfuric acid and make sulfuric acid
Acid RainAcid Rain• The worst example:
Sudbury, Ontario
(1/23/2001) Canadian Smelters Pumping 2.3 Million Pounds of Toxic Heavy Metals - Arsenic, Mercury, Lead - Into Environment Each Year.
The Canadian Environmental Defense Fund said mining smelters in Canada released more than 2.3 million pounds of heavy metals in 1998, including arsenic, mercury, lead and nickel compounds, all highly poisonous and harmful to people's health and the environment. The fund said the worst polluter was Inco Ltd., the western world's largest nickel miner, which released 1.1 million pounds of heavy metal into the environment from its facilities in Ontario and Manitoba.
Photochemical smogPhotochemical smog
Photochemical smogPhotochemical smog
NO + O2 NO2
smog
UV
NO + O
O2
O3ozone
Photochemical smogPhotochemical smog
Photochemical smogPhotochemical smog
OzoneOzone
OzoneOzone
Air PollutionAir Pollution
• Public health consequences
Asthma
Air PollutionAir Pollution
• Public health consequences
Asthma
Air PollutionAir Pollution
• Public health consequences
• Deaths - US estimates of annual deaths = 7,000 -180,000. If include indoor air pollution, 150,000 - 350,000.
• Costs - According to EPA and American Lung Association, air pollution costs US minimum of $150 Billion annually in health care and lost worker productivity, with $100 Billion of that related to indoor air pollution.
Air PollutionAir Pollution
• Public health consequences
Stratospheric OzoneStratospheric Ozone
absorbs UV light
Stratospheric OzoneStratospheric Ozone
Stratospheric OzoneStratospheric OzoneUVUVUVUV
Stratospheric OzoneStratospheric Ozone
C B A
Stratospheric OzoneStratospheric Ozone• Erythemal Response Spectrum
Stratospheric OzoneStratospheric Ozone• Erythemal Response Spectrum
Stratospheric OzoneStratospheric OzoneUV-b UV-a
Stratospheric OzoneStratospheric Ozone
Stratospheric OzoneStratospheric Ozone
Stratospheric OzoneStratospheric Ozone
1974: chloroflurocarbons responsible
Properties
– Developed in 1930’s
– Chemically stable
– Odorless
– Non-flammable
– Non-corrosive
– Cheap
CFCs Uses
– Appliance coolants
– Spray propellants
– Styrofoam building blocks
Stratospheric OzoneStratospheric Ozone
1974: chloroflurocarbons responsible
1987 & 1989:
Industrialized countries pledge phase-out
Stratospheric OzoneStratospheric Ozone
1974: chloroflurocarbons responsible
1987 & 1989:
Industrialized countries pledge phase-out
Stratospheric OzoneStratospheric Ozone
1974: chloroflurocarbons responsible
1987 & 1989:
Industrialized countries pledge phase-out
Stratospheric OzoneStratospheric Ozone
1974: chloroflurocarbons responsible
1987 & 1989:
Industrialized countries pledge phase-out
It will take many years for CFC reduction to improve the ozone shield
Artic ozone is also thinning
Global warmingGlobal warming
1997 was the warmest year
Global warmingGlobal warming
Global warmingGlobal warming
Global warmingGlobal warming
Oct 26, 2000 Intergovernmental Panel on Climate Change concludes that global warming is worse than realized
World could warm 11 F over next 100 years
Anthropogenic greenhouse gas emissions are causing global warming
GREENHOUSE GASES
– Carbon Dioxide - fossil fuel burning, land clearing/burning.
– Chlorofluorocarbons - refrigerants.
– Methane - Breakdown of organic material by anaerobic bacteria.
– Nitrous Oxide - Biomass burning, breakdown of nitrogen-rich products.
Global warmingGlobal warming