Its a simple presentation about air pollution. Here i try to present the definition, effect, reason and the control measure.

1. Topic of presentation
Air Pollution
Prepare by
Rowshan Tahia Chowdhury

2. The concept of Air Pollution
• Air pollution is contamination of
the indoor or outdoor
environment by any chemical,
physical or biological agent that
modifies the natural
characteristics of the
atmosphere. ...

3. Reason of air pollution
The Burning of Fossil Fuels
Agricultural Activities
Waste in Landfills
Exhaust From Factories and
Industries
Mining Operations
Indoor Air Pollution
Natural Events

4. Effect of air pollution
• Global Warming.
• Climate Change.
• Acid Rain.
• Smog effect.
• Deterioration of fields.
• Extinction of animal species.
• Respiratory health problems.
• Deterioration in building materials.

5. Let’s discuss the effects in
details

6. Global Warming
Global warming is a gradual
increase in the earth's
temperature generally due to
the greenhouse effect caused
by increased levels of
carbon dioxide, CFCs, and
other pollutants

7. Acid Rain
Acid rain results when SO2) and NOX are
emitted into the atmosphere and
transported by wind and air currents. The
SO2 and NOX react with water, oxygen
and other chemicals to form sulfuric and
nitric acids.

8. Smog Effect
Photochemical smog is produced when
sunlight reacts with nitrogen oxides and
at least one volatile organic compound
(VOC) in the atmosphere. When sunlight
hits these chemicals, they form airborne
particles and ground-level ozone—or
smog.

9. Effect on animal
air pollution is a death warrant
for plants and animals. Acid
rain resulting from air pollution
makes waters and soil more
acidic, killing wildlife outright.

10. Health hazards
Exposure to high levels of air
pollution can cause a variety of
adverse health outcomes. It
increases the risk of respiratory
infections, heart disease and lung
cancer.

11. Death Rate due to Air Pollution
58
70
84
90
93
0
10
20
30
40
50
60
70
80
90
100
2005 2006 2007 2008 2009
Series 1

12. deterioration on building
material
The materials most sensitive to
pollutants are calcareous building
stones and ferrous metals.
Manifestations of damage include
losses of mass, changes in porosity,
discoloration and embrittlement.

13. effective steps to control air pollution
 Use public mode of transport
 Conserve energy
 Planting more trees
 Reduce waste and reuse
 Try to walk or cycling