2. WHAT IS AIR POLLUTION??
Air pollution is the introduction of chemiclas, 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 IndoorAir Pollution and Outdoor Air
Pollution.These include smog, acid rain, the green house effect and hole in ozone layer.
One type of air pollution 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 more dangerous than outdoor air pollution because we do everything in enclosed
environment where air circulation may be restricted.
Sources of IndoorAir Pollution
Tobacco smoke
Cooking and heating appliances
Vapoures 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. 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.
9. EFFECT OF AIR POLLUTION
Trees play an important role in producing oxygenfrom carbon dioxide.
Pollutants such as sulfur dioxide, nitrogen oxides,ozone and peroxyacl
nitrates (PANS), cause direct damage to leaves of crop plants and
trees when they enter leaf pores
10. AIR POLLUTION CONCECUENCES
HOLE IN OZONE LAYER
Holes in the ozone layer in the atmosphere above Antarctica and the arctic
,coupled with growing evidence of global ozone depletion.
It is another result of air pollution.
Release of CFC from heating, aerosol cans, refrigerator equipments
remove some of the ozone, causing “Holes”.
Increase the amount of ultraviolet radiation reaching the earth.
Can lead to skin cancer and cataracts.
11. PREVENTIONS
Vehicle care
Public transport
Alternative energy sources
Saving energy
MinimizeAir Pollution
Recyclable materials
