2. Introduction
Types Of Air Pollution
Causes Of Air Pollution
Impacts Of Air Pollution
Conclusion
3. Air pollution is the pollution of air by smoke and harmful
gases, mainly oxides of carbon, sulpher and nitrogen.
Air pollution occurs when gases, dust particles, fumes
(smoke) are introduced into the atmosphere in a way that
makes it harmful to humans, animals and plant. This is
because the air becomes dirty (contaminated or unclean).
4. Air pollution is a pressing concern among
the different environmental issues that are
prevalent in the world.
There are several types of air pollution, Mainly
Indoor Air Pollution and Out Door Air Pollution.
5. Outdoor air is often referred to as ambient air.
The common sources of outdoor air pollution are
emissions caused by combustion processes from
motor vehicles, solid fuel burning and industry.
6. Smog is a type of large-scale
outdoor pollution. It is caused
by chemical reactions between
pollutants derived from different
sources, primarily automobile
exhaust and industrial
emissions. Cities are often
centers of these types of
activities, and many suffer from
the effects of smog, especially
during the warm months of the
year.
7. Another consequence of outdoor air
pollution is acid rain.
When a pollutant, such as sulfuric
acid combines with droplets of water
in the air, the water (or snow) can
become acidified.
The effects of acid rain on the
environment can be very serious
even. It damages plants by
destroying their leaves, it poisons
the soil, and it changes the
chemistry of lakes and streams if
even if the changes are small.
Damage due to acid rain kills trees
and harms animals, fish, and other
wildlife that are not adapted to the
new acid levels.
8. Ozone depletion is another result of
pollution.
Chemicals released by our activities
affect the stratosphere , one of the
atmospheric layers surrounding earth.
The ozone layer in the stratosphere
protects the earth from
harmful ultraviolet radiation from the
sun.
Release of chlorofluorocarbons(CFC’s)
from aerosol cans, cooling systems and
refrigerator equipment removes some of
the ozone, causing “holes”; to open up
in this layer and allowing the radiation
to reach the earth.
Ultraviolet radiation is known to cause
skin cancer and has damaging effects on
plants and wildlife.
9. Air pollution is not only on the outside.
It is more dangerous than the outdoor pollution, because we
do everything in enclosed environments where air circulation
may be restricted.
Many things which humans use every day can pollute the air.
Homes, schools, and buildings can also have air pollution.
Sometimes the air inside a building is even worse than the air
outside.
Detergents and household cleaners, aerosol sprays, shoe
polish, hair wax, paints, and glues are just a few of the
everyday chemicals that can release air pollution into your
home.
10. In buildings where the windows are tightly shut to stop air
leaks, the air inside can be polluted more than the air
outside.
Compounds inside carpets, paints, building materials
and furniture also pollute the air, especially when they are
new.
11. Air pollution is caused when air in the atmosphere is filled
with particulate matter.
The largest source air of pollution in cities is from vehicle
exhaust fumes.
Carbon monoxide is a poisonous, colorless gas that is formed
when burning fossil fuels such as coal, petroleum and natural
gas.
Filters that are not changed regularly in your air conditioning
units will accumulate dirt and cause the spread of pollutants
in the air you breathe inside your home.
12. Chemicals and toxic pollutants likes sulfur dioxide, nitrogen
oxides and carbon dioxide react with water molecules in the
atmosphere to produce acid rain. These pollutants come
from factories, automobiles and any industrial or
manufacturing plants.
Using household chemicals without adequate ventilation is a
major source of indoor air pollution.
Volcanoes, dust storms, and forest fires are causes of natural
air pollution.
Smoke from forest fires.
13. Air pollution causes irritation in the throat, nose, lungs
and eyes. It causes breathing problems and aggravates
existing health conditions such as emphysema and
asthma.
Contaminated air reduces the body’s defenses and
decreases the body’s capacity to fight other infections
in the respiratory system.
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 rivers.
14. People who exercise outdoors are susceptible to the adverse
effects of air pollution because it involves deeper and faster
breathing.
Acid rain contains hydrogen ions, which can damage trees,
crops, harm marine animals and induce corrosion in metals.
Smog causes harmful health effects in humans and animals.
People afflicted with heart disease, children and older people
are more sensitive to air pollution.
15. Air pollution has long been a serious problem
in the world.
Without air, Earth would be unable to sustain
life & spread the Word.
