The document discusses air quality, including definitions and examples of natural and unnatural pollutants, as well as the Air Quality Index (AQI) which indicates health concerns based on pollutant levels. Major pollutants include carbon monoxide, sulfur dioxide, nitrogen dioxide, particulate matter, and ground-level ozone, each with specified health impacts. Strategies for reducing pollution, such as biking, carpooling, and public transportation, are also suggested.

1. Nibras Al Haq
Grade: 9
SMIS
No of Slides: 29

3. Nibras Al Haq C.M

4. •Any visible or invisible particle or
gas found in the air that is not part
of the original, normal composition.
Nibras Al Haq C.M

5. Natural: forest fires, pollen, dust storm
Unnatural: man-made; coal, wood
and other fuels used in cars, homes,
and factories for energy
Nibras Al Haq C.M

6. Nibras Al Haq C.M

7. AQI: Air Quality Index
•Indicates whether pollutant levels in air may
cause health concerns.
•Ranges from 0 (least concern) to 500 (greatest
concern)
Nibras Al Haq C.M

8. 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 101-150 Active children and adults, and people
Sensitive Groups 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
excretion.
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.
Nibras Al Haq C.M

9. Nibras Al Haq C.M

10. ajor Poll utants:
5 M
arbon M onoxide
1..) C
Dioxide
2.) Sulfur
Dioxide
3.) Nitrogen
articula te Matter
4.) P
5.) Groun d Level
Ozone
Nibras Al Haq C.M

11. Carbon Monoxide
•colorless, odorless
•produced when carbon does not
burn in fossil fuels
•present in car exhaust
•deprives body of O2 causing
headaches, fatigue, and impaired
vision
Nibras Al Haq C.M

12. Sulfur Dioxide
•produced when coal and fuel
oil are burned
•present in power plant
exhaust
•narrows the airway, causing
wheezing and shortness of
breath, especially in those
with asthma
Nibras Al Haq C.M

13. Nitrogen Dioxide
•reddish, brown gas
•produced when nitric
oxide combines with
oxygen in the atmosphere
•present in car exhaust and
power plants
•affects lungs and causes
wheezing; increases chance
of respiratory infection
Nibras Al Haq C.M

14. Particulate Matter
•particles of different sizes and
structures that are released into
the atmosphere
•present in many sources
including fossil fuels, dust, smoke,
fog, etc.
•can build up in respiratory system
•aggravates heart and lung
disease; increases risk of respiratory
infection Nibras Al Haq C.M

15. Ground Level Ozone
•at upper level, ozone shields Earth from
sun’s harmful UV rays
•at ground level, ozone is harmful
pollutants
•formed from car, power and chemical
plant exhaust
•irritate respiratory system and asthma;
reduces lung function by inflaming and
damaging lining of lungs
Nibras Al Haq C.M

16. Nibras Al Haq C.M

17. Nibras Al Haq C.M

18. •Combination of gases with water vapor
and dust
•Combination of words smoke and
fog
•Forms when heat and sunlight
react gases (photochemical smog)
•Occurs often with heavy traffic,
high temperatures, and calm
winds
Nibras Al Haq C.M

19. Nibras Al Haq C.M

20. •1st smog related deaths were in
London in 1873; death toll 500
people; can you imagine how much
worse the atmosphere is now?!
•Limits visibility
•Decreases UV radiation
•Yellow/black color over cities
•Causes respiratory problems and
bronchial related deaths
Nibras Al Haq C.M

21. Nibras Al Haq C.M

22. Nibras Al Haq C.M

23. Nibras Al Haq C.M

24. Nibras Al Haq C.M

25. Nibras Al Haq C.M

26. Nibras Al Haq C.M

27. Nibras Al Haq C.M

28. •Ride your bike
•Tell your friends and family about
pollution
•Make sure that your car has a Catalytic
Converter fixed to it.
•Make sure your parents get pollution
checks on their cars.
•Travel in public vehicles like bus, train etc.
Nibras Al Haq C.M

29. •Learn more; stay up to date
•Join a group to stop pollution
•Encourage your parents to carpool
to work
•Switch off lights, fan, heat, etc. Nibras Al Haq C.M

31. Nibras Al Haq C.M

32. 1. Wikipedia
2. Ask.com
3. p4pollution.wikispaces.com
4. YouTube
5. Slideshare.com
6. ibrary.thinkquest.org
7. www.sciencedaily.com
8. wunderground.com
9. ecopics.com
10. factmonster.com
11. Google images
12. photo bucket
13. Facebook