Air pollution is the introduction of chemicals, particles or biological materials into the atmosphere that can harm humans, other living things, or the environment. There are different types of air pollution including smog, acid rain, the greenhouse effect, and depletion of the ozone layer. Indoor air pollution from activities like smoking, cooking and building materials can be more dangerous than outdoor sources of air pollution. Acid rain forms when air pollutants combine with water droplets and can seriously damage the environment by acidifying lakes and streams and damaging trees and structures. The release of pollutants like CFCs into the atmosphere also contributes to the formation of holes in the ozone layer.

1. AIR
POLLUTION

2. WHAT IS AIR POLLUTION?
Air pollution is the introduction
of chemicals , particular matter
or biological materials that
cause harm to discomfort
to humans or other living
organisms , or cause damage to
the natural environment or built
environment, into the atmosphere.

3. TYPES OF AIR POLLUTION
• There are several types of air pollution, mainly indoor air
pollution and outdoor air pollution. These include smog,
acid rain, the green house effect and hole in ozone layer.
• One type of air pollutant is the release of particles into
the air.
• Another type of air pollution is the release of poisonous
gases.

4. OUTDOOR AIR POLLUTION
SMOG
smog is a type of large scale out pollution. It is
caused by chemical reaction between pollutants derived
from different sources

5. INDOOR AIR POLLUTION
It is more dangerous than outdoor air pollution because
we do everything in enclosed environment where air
circulation may be restricted.
Sources of indoor air pollution
Tobacco smoke
Cooking and heating appliances
Vapours from building materials

6. ACID RAIN
• It is caused when pollutant combines with droplets of
water in the air.
• The effects of acid rain on the environment can be
serious.

7. EFFECTS OF ACID RAIN
 Acid rain causes acidification of lakes and
streams
 It contributes to the damage of trees and many
sensitive forest soils.
 It accelerates the decay of building materials
and paint, including irreplaceable building,
statues.

8. HOLE IN OZONE LAYER
• It is another result of air pollution.
• Chemicals releases by our activities affect the
stratosphere.
• Release of CFC from heating, aerosal cans, refrigerator
equipments remove some of the ozone, causing “holes”.

9. CAUSES OF AIR POLLUTION
• Dust raised on the ground during dust storms.
• Stone dust raised by crushing of stones in
quarries.
• Smoke emitted by vehicles.
• Smoke from forest fires.
• Smoke raised by burning of coal in powerhouses.
• Burning of wood, cow dung cakes, garbage etc.

10. PREVENTIONS
Vehicle care
Public transport
Alternative energy sources
Saving energy
Minimize air pollution
Recyclable materials

11. A QUOTE
“ LOVE IS IN THE AIR BUT THE AIR IS
HIGHLY POLLUTED”
Thank you