The document discusses air pollution, defining it as the discharge of foreign substances into the air that adversely affect air quality and harm human, plant, and animal life. It classifies air pollutants, sources of pollution, effects of pollution, and methods for controlling pollution. Key topics include primary and secondary air pollutants, natural and man-made pollution sources, impacts on health, animals, plants, materials and climate, and devices like cyclone collectors and electrostatic precipitators that can remove particulates from industrial emissions.
Air pollution: its causes,effects and pollutantsMaliha Eesha
This presentation gives the complete detail of air, air pollution, air pollutants and their types, each pollutant in detail and its causes and effects, acid rain, methods of prevention,smog,acidification,indoor pollution and so on. It is a complete package and I hope it'll be helpful in school! :)
Air pollution: its causes,effects and pollutantsMaliha Eesha
This presentation gives the complete detail of air, air pollution, air pollutants and their types, each pollutant in detail and its causes and effects, acid rain, methods of prevention,smog,acidification,indoor pollution and so on. It is a complete package and I hope it'll be helpful in school! :)
This a presentation about the Air pollution and its causes & effects for the educational uses
It describe the definitions, types, info diagrams, sources, effects, and their controls
I hope this science could be a benefit for anyone who search the information
: Air pollution is the presence of substances in ambient atmosphere, generally resulting from the activity of man in sufficient concentration, present for sufficient time and cause harmful effect on humans, plants and animals.
What is Air? What is atmosphere ?
Definition of Air Pollution.
Types of Air Pollution.
Sources of Air pollution.
Effects of Air pollution.
Prevention of Air pollution.
Solving Ideas
Conclusion.
Air pollution occurs when harmful substances released in or excessive quantities including gases, particles, and biological molecules to Earth's atmosphere. Life expectancy has gone down by 2.6 years due to air pollution. Delhi, Mumbai, Gurugram comes under most polluted cities of the world.
Effects of Air Pollution on human beings, plants and animals and Properties. Global
effects-Green house effect, Ozone depletion, heat island, dust storms, Automobile pollution sources and control, Photochemical smog, Future engines and fuels
Definition, Composition of atmospheric air, Classification and sources of air
pollutants. Effects of air pollution on human, plant and material, Air pollution control methods, equipment and safety.
This a presentation about the Air pollution and its causes & effects for the educational uses
It describe the definitions, types, info diagrams, sources, effects, and their controls
I hope this science could be a benefit for anyone who search the information
: Air pollution is the presence of substances in ambient atmosphere, generally resulting from the activity of man in sufficient concentration, present for sufficient time and cause harmful effect on humans, plants and animals.
What is Air? What is atmosphere ?
Definition of Air Pollution.
Types of Air Pollution.
Sources of Air pollution.
Effects of Air pollution.
Prevention of Air pollution.
Solving Ideas
Conclusion.
Air pollution occurs when harmful substances released in or excessive quantities including gases, particles, and biological molecules to Earth's atmosphere. Life expectancy has gone down by 2.6 years due to air pollution. Delhi, Mumbai, Gurugram comes under most polluted cities of the world.
Effects of Air Pollution on human beings, plants and animals and Properties. Global
effects-Green house effect, Ozone depletion, heat island, dust storms, Automobile pollution sources and control, Photochemical smog, Future engines and fuels
Definition, Composition of atmospheric air, Classification and sources of air
pollutants. Effects of air pollution on human, plant and material, Air pollution control methods, equipment and safety.
This presentation helps us get to know about the harm we are causing to earth and also about the harm we are causing to our selves. All pollutants are explained in detail.This is helpful for students in class 9
In this presentation what is air, composition of air, pollution of air, pollutant, sources of pollutant and effects of air pollution on human,animal, plant and environment with icon, relevant pictures and diagram are described
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.
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1. AIR POLLUTION
Excessive discharge of undesirable
foreign substances into the
atmospheric air thereby adversely
affecting the quality of air and
causing damage to human, plants
and animal lives.
3. Classification of Air Pollutants
Primary Air Pollutants Secondary Air Pollutants
• The poisonous gases and • Derived from Primary Air
undesirable chemicals Pollutants
which cause air pollution. • In bright sunlight
nitrogen, nitrogen
• Carbon particles from oxides, oxygen and
unburned fuel, Ammonia hydrocarbons –
(NH3), Sulphur dioxide photochemical reaction –
(SO2), Hydrocarbons, Oxi powerful oxidants –
Ozone, Aldehydes, Sulphuri
des of nitrogen, Oxides of c acid, Peroxy acetyl nitrate
carbon, Lead. (PAN), Peroxides, etc.
• They form photochemical
Smog
4. Sources of Air Pollution
Natural Man Made
• Natural contaminants • Rapid industrialization
(fungi, spores, cysts, bacteria, • Automobile Revolution
methane, dust, etc.)
• Deforestation
• Carbon monoxide from
Methane Gas
• Volcanic Eruptions
• Forest fires
• Electric storms and Solar
flares
• Salt spray from oceans
• Dust storms
5. Classification of Pollutants
Gases Particulates
• Oxides of Sulphur • Dust
• Oxides of Nitrogen • Smoke
• Oxides of Carbon • Fog
• Carbon dioxide • Smog
• Ozone – London Smog
• Hydrogen Sulphide – Los Angels Smog
• Chlorofluoro Carbons • Fly Ash
• Hydrogen fluoride • Soot
• Hydrocarbons • Fumes
• Photochemical oxidants • Natural Particulates
• Aerosols
6. Effect of Air Pollution
• On Human Health
– Irritate respiratory tract
– Irritate eyes, nose and throat
– Lead particles cause Lead Poisoning
– Cadmium particles – Cardio vascular
disease, Kidney and Liver damage
– Nickel particles – respiratory damage
– Mercury – Central nervous system, kidney and
brain
– Radioactive substances affect future generations
7. Effect of Air Pollution Contd...
• On Animals
– Feeding particulate coated plants
(fluorine, lead, arsenic) – Arsenic Poisoning
– Lead Poisoning – Bronchitis, Lack of appetite
in pet animals
8. Effect of Air Pollution Contd...
• On Plants
– Spraying Pesticides, Organic manure and
agricultural applications – affect growth of plants
– Destroy chlorophyll formation – disturb
photosynthesis
– SO2 – decreases chlorophyll content – causes
Chlorosis
– NO2 – permanent leaf fall
– Ozone – Necrosis - dead area on leaf – damages
the leaves
9. Effect of Air Pollution Contd...
• On Materials
– Corrosion
– Abrasion
– Deposition
– Chemical attack on surface
Acid Rain
10. Effect of Air Pollution Contd...
• On Climate
– Increase in CO2 – increase temperature of
atmosphere – ice and polar glaciers melt –
flooding of coastal towns – change rainfall
pattern – agricultural output changes
– Depletion of Ozone layer – increase
penetration of harmful UV rays on earth – skin
diseases, sunburns, inactivation of RNA, DNA
and protein molecules
11. Control of Air Pollution
• Planting more trees
• Reducing vehicle exhausts
• Using less polluting fuels
• Using mass transport
• Removal of particulate matter using electrostatic
precipitator, cyclone filter, etc.
• Industrial area should be cited far away from
residential area.
• Suitable chemical methods applied to remove
hydrocarbons
• Multi stage combustion process – suggested to
remove oxides of nitrogen
12. Control of Air Pollution Contd...
• Activated carbon, charcoal, commercial
zeolite and pulvarized lime stones can be
used to remove polluting gases by
absorption methods
• Use of tall chimneys reduces –
concentration of air pollutants at ground
level
15. Summary
Definition
Air Pollutants
Classification
Primary Air Pollutants
Secondary Air Pollutants
Sources of air pollution
Natural
Man made
Classification of Pollutants
Gases
Particulates
Effects of Air Pollution
On human health
On Animals
On Plants
On Materials
On Climate
Control of Air Pollution
Cyclone Collector
Cottrell Electrostatic Precipitator