Air Pollution - Southern New Hampshire University

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Transcript Air Pollution - Southern New Hampshire University

ESL Level 5
Presenter: Pornpimon, Oh
Instructor: Lyra Riabov
What is air pollution?
Air pollution problems
Health Effects
Reducing of air pollution
What is air pollution?
Air supplies us with oxygen which is essential for our
bodies to live. Air is 99.9% nitrogen, oxygen, water vapor
and inert gases
Air pollution is the release of particles into the air from
burning fuel in automobiles, homes, and industries.
It is also the release of gases. These can take part in
some chemical reactions once they are in the
atmosphere, forming smog and acid rain.
Formation of Air Pollutant
Indoor Air Pollution
Sources of indoor air pollution
 Tobacco smoke
 Cooking and heating appliances
 Vapors from building materials, paints, furnices, etc.
What can you do about Indoor Air Pollution?
Use Products safely
Restrict Smoking
Use Appliances Property
Select Building Material Carefully
Practice Good Housekeeping
Provide Adequate Ventilation
Outdoor Air Pollution
Acid Rain
The result of chemical reactions
between pollutants derived from different
sources, automobile exhaust and industrial
emissions and moisture in the air.
Cities are often centers of these types
of activities, and many people suffer from
the effects of smog, especially during the
warm months of the year when the humidity
is high.
In Los Angeles
In St. Louis
In China
In Hong Kong
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
It damages plants by destroying their leaves; it poisons
the soil, and it changes the chemistry of lakes and
Damage due to acid rain kills trees and harms animals,
fish, and other wildlife.
Acid Rain
 This picture shows what a long
term exposure to acid rain can do.The
first picture is the original sculpture,
the second one is how it looks right
 How the trees have become leafless
and dead because of their being
exposed to acid rain.
 The main pollutant that causes acid
rain,comes from industries,which eject
Sulphur Dioxide and Nitrogen Oxide
into the atmosphere, that become part
of the clouds and form acid rain
Health Effect
Short term
Long term
Short-term effects
Irritation to the eyes, nose and throat.
Upper respiratory can be infected and cause such
disease as bronchitis and pneumonia.
Other symptoms can include headaches, nausea, and
allergic reactions.
Short-term air pollution can aggravate the medical
conditions of individuals with asthma and emphysema.
In the great "Smog Disaster" in London in 1952, four
thousand people died in a few days due to the high
concentrations of pollution.
Long-term health effects
Chronic respiratory disease such as lung cancer,
heart disease
Damage to the brain, nerves, liver, or kidneys.
Continual exposure to air pollution affects the lungs
of growing children and may aggravate or complicate
medical conditions in the elderly.
It is estimated that half a million people die
prematurely every year in the United States as a
result of smoking cigarettes.
Reducing air pollution ( By people)
By driving a car that gets at least 35 miles a gallon,
drive fewer miles, walk, bicycle or use mass transit
when it is possible
Replace luminous light bulbs with compact fluorescent
Make your home energy efficient. Recycle newspaper,
aluminum, and other materials
Plant trees
Avoid purchase products such as Styrofoam that
contain CFCS
Reducing air pollution ( By Government)
The government should make stricter clean air
Enforcement and Development of International
contracts to reduce ozone depletion and slow
global warming.
The Earth is everybody’s home and
nobody likes living in a dirty home.
Together, we can make the Earth
a cleaner, healthier and more
pleasant place to live.