Air Quality - Pollution

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Air Quality - Pollution

• Section 16.2

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Greenhouse Effect

• GH Gases
• .
• 2. .
• 3. .
• .
• .
• Radiation from sun is trapped as heat in our
  atmosphere.

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Greenhouse Mechanism

• Radiation is converted to
• heat energy by __________
• ________(friction in electrons).

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Humans Impacting Greenhouse

• Burning __________ Fuels
• (transportation/coal-burning
  power/manufacturing)
• Deforestation (less cycling)

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Our Atmosphere

• ______________ (N2) 78
• ________________ (O2) 20
• _______________(O3) trace
• protects us from harmful radiation (UV and
  higher frequency)
• ______________________(CO2) .05
• ________________ (CH4) trace

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Greenhouse Effect

• Radiation from sun enters atmosphere and is
  filtered so we dont burn up.
• Heat trapped during daytime, sustains us at night

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Why Greenhouse Effect is Good

• ________ we would burn up
• _________ freeze to death
• Without the atmosphere
• No CO2 for plants
• No H20 for organisms weather
• No O2 for humans, animals

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CO2 (greenhouse gas) and ___________ (direct or
indirect relationship?)
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CO2 (greenhouse gas) and temperature
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Make a connection to .
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Global Warming consequences

• Trend of warming climate increase of __
  _____º F in last _____ years
• POSSIBLE EFFECTS ________________
• ___________________________________
• Climate change (deserts-rain forests)
• Ecosystems destroyed
• Loss of species
• Epidemics of parasites/disease

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Global warming consequences
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Ozone Earths Sun Block

• ________ air pollution compounded by the
  interaction with sunlight. Gound level ozone
  formed when NO2 reacts with O2
• To form O3 -harmful to organisms
  (lungs/sensitive tissues)
• Stratosphere O3 Protects us from _______rays.

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Ozone Depletion

• __________(chlorofluorocarbons) group of
  chemicals.
• Used as propellants and refrigerants.
• React and permanently disable ozone.

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Acid RainCauses

• _______________________________
• Releasing Nitrogen and Sulfur oxides
• (impurities). Form acid rain.
• _______ (Sulfuric acid)
• _________(nitric acid)

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Acid Rain

• pH lt __ pH units

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pH scale (pH units)

• Change in .1 is x10 on scale
• ____ is ten times more acidic than _____
• Life exists in range of ______ pH units

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Mechanism

• OH- H H2O
• OH- gtH BASE
• OH-ltH ACID

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Acid Rain Damage

• Bio-___________- sensitive creatures to change
  (aquatic insect/amphibians/trout)
• Reproduction in ________.

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Pollution Producers

• ________ generation
• Population centers
• _______________
• Industrial ________

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Movement of pollution
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______________Areas
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Buffers Natures protection

• _______________(CaCO3) neutralizes the pH.

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Strategies to stop Acid Rain

• Electrostatic Precipitators (___________)
• Low _________coal have to burn more (less
  energy).
• Alternative energy
• Source reduction