All about Air Pollution

2. • A major source of air pollution results from the burning of fossil
fuels. Vehicle and factory emissions are common sources of this
type of air pollution.
• Air pollution contributes to respiratory problems such as
asthma, lung cancer, chronic bronchitis, and other lung
ailments.
• Nitrogen and sulfur oxides in the air contribute to acid rain,
which is a form of precipitation with a lower (more acidic) pH
than normal.
• Acid rain harms forests, species that live in water bodies, and
degrades outdoor statues, monuments, and buildings.

3.  Two categories
o Primary Air Pollutant
Harmful substance that is
emitted directly into the
atmosphere
o Secondary Air Pollutant
Harmful substance formed in the
atmosphere when a primary air
pollutant reacts with substances
normally found in the
atmosphere or with other air
pollutants

4. o Primary air pollutants (PAPs) are those that are
emitted directly into the air from sources.
Examples – Sulphur dioxide, nitrogen oxides,
carbon monoxide, volatile organic matter,
particulate matters, lead, ammonia etc.
o 5 Major Outdoor Air Pollutants
Ozone (O3)
Nitrogen Oxides (NOx)
Carbon Monoxide (CO)
Sulfur Dioxide (SO2)
Particulate Matter (PM10 and PM2.5)

5. o Secondary pollutants harm the
environment by making acid rain and
smog. Acid rain can dissolve hard
materials (rocks, buildings, metals). Smog
poses a human health hazard.
Greenhouse gases can result in global
warming, which can change many areas
around the world.
o 5 Major Outdoor Air Pollutants
Sulfur trioxide (SO3)
Nitric acid (HNO3)
Sulfuric acid (H2SO4)
hydrogen peroxide (H2O2)
SULFATE ION (SO4)
Trioxygen (O3)

6.  Short-term exposure to outdoor air pollutants can cause:
Aggravated asthma
Irregular heartbeat
Respiratory symptoms like coughing, wheezing or
difficulty breathing
 Long-term exposure to outdoor air pollutants can cause:
Development of asthma
Nonfatal heart attacks
Decreased lung function
Respiratory infections
Premature death in people with heart or lung disease

7. Transportation
Fuel Combustion
Industrial
processes
Miscellaneous
Nuclear plants
pesticide spraying

8.  Using public transports
 Turn off the lights when not in use
 Recycle and Reuse
 No to plastic bags
 Reduction of forest fires and smoking
 Use of fans instead of Air Conditioner
 Use filters for chimneys
 Avoid usage of crackers
 Avoid using of products with chemicals
 Implement Afforestation

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