1. AIR POLLUTION

2. Dirtiness
POLLUTION =
Degradation
Disease Contamination

3. A human can survive some days without
drinking, some weeks without eating, but
only some minutes without breathing.

4.  Air pollution isn’t a
today problem…

5. AIR POLLUTION SOURCES
 Natural Factors - result from biologic and
natural activity
 Solo, vegetation, animal, volcanoes, ocea
n…
 Human Factors – result from human activity
 Means of
transport, industries, combustion
processes, agriculture…

6. IMPACT OF HUMAN ACTIVITY ON AIR
QUALITY
Gases and particles emissions
 Acid rain
Urban smog
 The Ozone hole
 Climate changes

7. URBAN SMOG
 Smog comes from air pollution, especially in urban
areas, due to big levels of ozone and particles.
Some cities who are affected by
smog episodes:
•Peking
•Los Angeles
•London
•Paris
•Lisbon
Designation history:
smog = smoke + fog

8. URBAN SMOG
Effects
Health and human welfare
Vegetation
Material

9. Ozone in Europe
Nº of days with
values bigger than
the law permits, in
2007.

10. GLOBAL WARMING
 Global warming consists
on the increase of the
global temperature, that
causes climate changes.

11. Greenhouse gases
Global warming causes
Polluted gases emitted by:
 Vehicles;
 Industries;
 Energy production.

12. Global warming consequences:
Melting glaciers More floods
More dryness
Mean sea level rise

13. Put in danger human health
Damages biologic resources
and ecosystems
Damages material
Put in risk environmental values
Moscow, 6 Agosto 2010

14. CURIOSITIES
According to World Health Organization (WHO) 3
million of people die annually due air pollution.
Even if air pollution in the world has been
increasing since the 70’s, today it’s still possible to
breath pure air, especially outside of the big cities.
http://www.youtube.com/watch?v=UcWpkWB
X04E&feature=related

15. CONCLUSION
Even if we can’t see the air like you can see
water or a forest, it’s a natural resource that we
MUST protect. It’s up to us to preserve the air that
we breathe and there are small gestures that make
the difference: walking less by car, turn off the lights
when we don’t need them, consume less, etc. Just
with gestures of everybody we can avoid that air
pollution effects/problems continue to happen.