Transcript Air Pollution Video  http://www.unitedstreaming.com/search/a ssetDetail.cfm?guidAssetID=17C65059C480-4CD9-9289-43EEA4F98CB6 Air and Water Resources Chapter 5 Air Pollution Guiding Questions        What is air pollution and how is it dangerous? What causes.

Air Pollution Video

http://www.unitedstreaming.com/search/a
ssetDetail.cfm?guidAssetID=17C65059C480-4CD9-9289-43EEA4F98CB6
Air and Water Resources
Chapter 5
Air Pollution
Guiding Questions
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What is air pollution and how is it dangerous?
What causes photochemcial smog?
How does the ozone layer protect people?
What happens during a temperature inversion?
Give three examples of indoor air pollutants and
why are they dangerous.
What is the greenhouse effect and how does it
help us?
Why is global warming dangerous?
Main Ideas
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Air pollution is a change to the atmosphere
that has harmful effects . Substances that cause
pollution are called pollutants.
Main Ideas
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Photochemical smog is a thick brownish haze formed
when certain gases in the air react with sunlight.
The major sources of photochemical smog are the gases
emitted by motor vehicles
Main Ideas
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A temperature inversion
is when a layer of warm air
prevents the rising air from
escaping. The polluted air is
trapped and held close to
Earth’s surface. The smog
becomes more concentrated
and dangerous.
Main Ideas
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Sources of indoor air pollution include smoke,
dust, pet hair, and asbestos. Two dangerous
pollutants that are very difficult to detect are
carbon monoxide and radon.
Main Ideas
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The ozone layer is a layer of
the upper atmosphere about 30
kilometers above Earth’s
surface. Yet even the small
amount of ozone in the ozone
layer protects people from the
effects of too much ultraviolet
radiation.
Ozone is the major, toxic
chemical found in smog
Gases containing CFC
(chlorofluorocarbons) create
a hold in the ozone layer. Why is
this bad?
Main Ideas
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Precipitation in an acidic form is called
acid rain. It is produced by heavy
pollution in the air.
Main Ideas
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Gases in the Earth’s
atmosphere such as
water vapor and carbon
dioxide prevent heat
from escaping back into
space. This is called the
greenhouse effect.
Main Ideas
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Global warming is the theory that predicts that
carbon dioxide will cause the average
temperature to continue to rise. What problems
could this cause.
Clean Air Challenge Quiz
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http://www.cleanairprogress.org/clean-airpollution/air-pollution-lesson-plan.asp