I describe about what is a pollution. and what is air pollutans. Air primary pollutants. primary pollutants how cause pollution. primary pollutants cauiise pollution in different manners. pollution caused by these pollutants ius very svere. these pollutants effects are very adverse on health of humans. tomados( anything in svere condition) and man made sources causes pollution more and more. human interrupt natural sources and cause pollution.

1. •Air pollution
•RABIA

2. POLLUTION
• Pollution is the introduction of harmful substances or
products into the environment.

3. AIR POLLUTION
• It is defined as any atmospheric condition in which certain substances
are present in such concentrations that they produce undesirable
effects on humans and environment

4. COMPOSITION OF AIR

5. • Natural Sources
• Natural disasters
• Volcanoes
• Wildfires
• Tornados
• Man made Sources
Factories
• Automobiles
• Energy sources
WILD FIRE
TORNADOS
causes

6. Air Pollutant and their effects
Things that pollute a substance is called a pollutant.
•Air Pollutant
An air pollutant is a substance in the air that can have adverse effects
on humans and the ecosystem. The substance can be solid particles,
liquid droplets, or gases. A pollutant can be of natural origin or
manmade.
•Pollutants are classified as primary or secondary

7. Major Primary Pollutants
• Nitrogen Oxides (NOx)
• Carbon monoxide (CO)
• Sulphur Oxides (SOx)
• Heavy metals (As,Cd,Pb,Hg)

8. Nitrogen oxides
• Nitrogen oxides, particularly nitrogen dioxide, are expelled from high
temperature combustion, and are also produced during thunderstorms
by electric discharge.
• Nitrogen oxides (NOX) are emitted during fuel combustion, such as
by industrial facilities and the road transport sector. As with SO2,
NOX contributes to acid deposition.
• NO2 that is associated with adverse affects on health, as high
concentrations cause inflammation of the airways (wind pipe,layrnx).

9. Sulphur dioxide
fuels (coal and petroleum) contain Sulphur as an impurity; when fuels
are burnt, Sulphur is oxidized or burnt to SO2
• also emitted from volcanoes eruptions
•irritates the eyes and causes breathing difficulties causes
asthmatic problems.
•in the presence of a catalyst such as NO2 forms H2SO4 and results of
acid rain.

10. Co (carbon mono oxide)
•colorless and odourless,toxic gas
• comes from the incomplete combustion of fuel in vehicles.
• can be absorbed by haemoglobin in the blood, thus blood
can no longer absorb O2
• extra amounts of CO result in tiredness, headaches, heart
damage and small amounts can be lethal

11. Heavy metals
The heavy metals arsenic (As), cadmium (Cd), lead (Pb) mercury (Hg) and
nickel (Ni) are emitted mainly as a result o various combustion processes and
industrial activities.
•These chemicals are known as toxins and are linked to thyroid
disorders, cancer, women’s hormonal conditions, chronic
fatigue syndrome, fibromyalgia and other several illnesses &
symptoms includes.
• Fatigue
•Lung Cancer
•Cardiopulmonary diseases