The Atmosphere

1
The Atmosphere

• Air Pollution

2
Most air pollution is the result ofburning
fossil fuels.

• Coal
• Oil
• Gasoline
• Diesel fuel

3

• ½ of the air pollution comes from cars that burn
  gas and diesel.
• ¼ comes from factories and power plants that burn
  coal and oil.

4
This forms 2 main types of air pollution
SMOG
and
ACID RAIN
5
SMOG

• Today most cities experience photochemical smog,
  caused by the action of sunlight on chemicals.

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How smog is formed..

• Nitrogen combines with Oxygen nitrogen oxides.
• Nitrogen oxides combine with hydrocarbons (from
  burning fossils fuels).
• In the presence of sunlight they form a mix of
  chemicals called photochemical smog.

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SMOG FORMATION
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Harmful Effects of Photochemical Smog

• Lung irritation-
• Harmful to plants
• Damages paint, rubber, and some plastics.
• Learn more!!EFFECTS

9
ACID RAIN

• Rain is naturally slightly acidic, but rain that
  contains more acid than normal is known as acid
  rain.

10
ACID RAIN

• The smoke and fumes from burning fossil fuels
  rise into the atmosphere and combine with the
  moisture in the air to form acid rain.
• The main chemicals in air pollution that create
  acid rain are sulfur dioxide and nitrogen
  oxides. 
• This forms a mild solution of sulfuric acid and
  nitric acid.
• Rainwater, snow, fog, and other forms of
  precipitation containing those mild acids fall
  to the earth as acid rain.

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ACID RAIN FORMATION
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Harmful Effects of Acid rain

• Damaging to buildings and statues.
• Harmful to plants, especially pine trees.
• Harmful to lakes and ponds. Acid rain can make
  water so acidic that plants, amphibians, fish,
  and insects can no longer survive in it.
• Can even be harmful to human health.

13
Damage done by Acid Rain
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In Conclusion

• Burning fossil fuels can create both
  photochemical smog and acid rain.
• They are both harmful to people and the
  environment.
• Click HERE to learn more from a short video.