Content Introduction Types of air pollution Outdoor air pollution Indoor air pollution Cause of air pollution Health Effect Preventions

1. AIR POLLUTION
Presented By: PRASENJIT BHOWMICK

2. CONTENT
 Introduction
 Types of air pollution
 Outdoor air pollution
 Indoor air pollution
 Cause of air pollution
 Health Effect
 Preventions

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

4. TYPES OF AIR POLLUTION
 There are several types of air pollution, Mainly
Indoor Air Pollution and Out Door Air Pollution.
These include smog, acid rain, the green house
effect and hole in the ozone layer.
 One type of air pollution is the release of particles
into the air.
 Another type of pollution is the release of
poisonous gases.

5. OUTDOOR AIR POLLUTION : SMOG
Smog is a type of large scale outdoor
pollution. It is caused by chemical
reactions between pollutants derived
from different sources.
Outdoor air pollution is a complex mixture of pollutants
originating from natural and anthropogenic sources,
• transportation, power generation, industrial activity, biomass
burning, domestic heating and cooking.
Commonly measured as particulate matter (PM2.5, PM10),
nitrogen dioxide, and sulfur dioxide.

6. SMOG
 Two types of smog : sulfurous smog and photochemical
smog.
 Sulfurous smog or “London smog,” results from a high
concentration of sulfur oxides from sulfur-bearing fossil
fuels particularly coal.
 Photochemical smog or "summer smog", is the chemical
reaction of sunlight, nitrogen oxides and volatile organic
compounds in the atmosphere, which leaves airborne
particles and ground-level ozone.

7. INDOOR AIR POLLUTION
It is more dangerous than the outdoor pollution,
because we do everything in enclosed
environments where air circulation may be
restricted.
 SOURCES OF INDOOR AIR POLLUTION
 TABACCO SMOKE
 COOKING AND HEATING APPLIANCES
 VAPORES FROM BUILDING MATERIALS

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.

9. CAUSES OF AIR POLLUTION
 Smoke raised by burning of coal in powerhouses.
 Burning of wood, cow dung cakes, garbage etc.
 Germs from coughing and sneezing.

10. HEALTH EFFECT
 Air pollution affect our health with both short term and
long term effects.
 Many chemicals in the air affect human body in negative
ways.
• Older people are highly vulnerable to diseases induced
by air pollution. Those with heart or lung disorders are
under additional risk.
• Children and infants are also at serious risk.
• Air pollutants such as ozone, nitrogen oxides, and sulfur
dioxide also have harmful effects on natural ecosystems.
They can kill plants and trees by destroying their leaves,
and can kill animals, especially fish in highly polluted

11. PREVENTIONS
Car Pool: A car pool will reduce the number of cars, which
preventing air pollution by cutting down the use of fossil
fuels. It will sustainable use of fossil fuel and its
conservation for the future generations.
Vehicle Care: Timely servicing of the car helps to
minimizes fuel exhaust. Driving the car at an average
speed and turning off in traffic are the thumb rules to save
fuel. Using the unleaded petrol and regular pollution
checking can reduce to increase.

12. PREVENTIONS
Public Transport: Trying to travel by public transports in two
ways; prevents air pollution and increases public income. If
you are going to a nearby place, go by walking or use a
bicycle, instead of using your vehicle. The objective is to
minimize the use of fuels as far as possible.
Alternative Energy Sources: Another effective way to prevent
air pollution is to use alternative energy sources such as solar
energy, hydroelectric energy, and wind energy. Nowadays,
sophisticated technologies such as wind turbine, solar water
heaters are introduced to generate electricity and other
energy forms for household uses.

13. PREVENTIONS
Saving Energy: Saving energy will, of course, help to prevent
air pollution. Switch off the lights, fans, air conditioners,
televisions, and other appliances, when not in use. You can
also share a room with others when the air conditioner or fan
is on, instead of switching them on in every room.
Minimize Air Pollution: Always try to minimize smoke
emission, as it contributes a lot to air pollution. One way is to
compost dried leaves and kitchen waste, instead of burning
them. Composting will also give you organic fertilizer for your
garden. Other tips include replacing old wood stoves or gas
furnaces, avoiding solvents, and most importantly, do not
smoke in the home.

14. Recyclable Materials: Recycling is a simple approach to
reduce pollution in two ways; save energy which is required
for disposing and minimize the pollutants released during
manufacturing. The list of recyclable materials include plastic
bottles, aluminum cans and utensils, paper, craft papers,
cardboard and glass bottles.
Smart Purchasing: Remember to carry paper bags and
minimize using plastic bags. While buying the products,
always choose airfriendly and recyclable products that will
minimize the emission of pollutants. Also, shop for only
energy-efficient appliances that use less packaging.