2. Topics to be discussed-
•What is Air Pollution?
•How is it measured?
•Five major pollutants.
•Smog and its effects.
•The other problems…
•What should we do to reduce it?
3. 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.
What is AirPollution?
4. Natural: forest fires, pollen,
dust storm
Unnatural: man-made; coal,
wood and other fuels used in
cars, homes, and factories for
energy
Its types…
5.
6. AQI: Air Quality Index
•Indicates whether pollutant levels in air may cause
health concerns.
•Ranges from 0 (least concern) to 500 (greatest
concern)
7. Air Quality Air Quality Index Protect Your Health
Good 0-50 No health impacts are expected
when air quality is in this
range.
Moderate 51-100 Unusually sensitive people
should consider limiting
prolonged outdoor exertion.
Unhealthy for
Sensitive Groups
101-150 Active children and adults, and
people with respiratory disease,
such as asthma, should limit
prolonged outdoor exertion.
Unhealthy 151-200
Active children and adults, and
people with respiratory disease,
such as asthma, should limit
prolonged outdoor exertion,
everyone else, especially
children should limit prolonged
outdoor exertion.
Very Unhealthy
(Alert)
201-300 Active children and adults, and
people with respiratory disease,
such as asthma, should limit
prolonged outdoor exertion
everyone else, especially
children, should limit outdoor
exertion.
11. •Combination of gases with water vapor
and dust
•Combination of words smoke and fog
•Forms when heat and sunlight react
with gases (photochemical smog)
•Occurs often with heavy traffic,
high temperatures, and calm winds
12.
13. • 1st
smog related deaths were in
London in 1873; death toll 500
people..
• Limits visibility
• Decreases UV radiation
• Yellow/black color over cities
• Causes respiratory problems and
bronchial related deaths
14.
15.
16.
17.
18.
19.
20.
21. •Ride your bike instead of riding a car.
•Tell your friends and family about
pollution. Spread awareness.
•Make sure your parents get pollution
checks on their cars
•Join a group to stop pollution.
•Switch off lights, fan, heat, etc. when
you leave the room
•Remember to carry paper bags and
minimize using plastic bags.
22. •Alternative Energy Source: use
alternative energy sources such as
solar energy, hydroelectric energy,
and wind energy.
•Minimize smoke emission, as it
contributes a lot to air pollution.
