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Presentation by:-Rashmi.R(PGS14RHS0486)Ashwini.R(PGS14RHS0Jr.MHSc

AIR POLLUTION

INTRODUCTIONAir pollution may be defined as that quantity

of pollutants which is sufficient to cause injury to human beings and other living creatures and damage the objects.

Air pollution can be categorized into two groups first kind of air pollutants are released into atmosphere from specific source and the second type of pollutants result from chemical changes that take place in the atmosphere.

MAJOR AIR POLLUTANTS

In atmosph

ere

Solid liquid Gaseous forms

Examples for air borne contaminantsDust Fumes Drople

ts Of Mist

Gases Vapours

Cement Iron Oxide

Sulphuric Acid

Sulphur Dioxide

Gasoline

Coal Zinc Oxide

Chromic Acid

Nitrogen Oxide

Tricolrethylene

Ores Lead Oxide

Oil Carbon Monoxide

Perchlorethylene

Grains - Greece Hydrogen Sulphide

Toluene

Rock Saw Dust

- Paint Chlorine Stylene

CAUSES OF AIR POLLUTIONUrbanization. Industrialization.Motorization.Nuclear production.Energy production from thermal plants.Burning of domestic fuel.Burning of agricultural waste.Developments in urban settlement.

Sources type

Category Examples

Pollutants

Dust producing Crushing ,Grinding Milling

Road mix plantsGrain elevators

Mineral and organic particulates

Combustion Fuel burning Motor vehicles

Power plantsAutos, buses & trucks

Oxides of sulphur and nitrogen carbon monoxide, smoke ash

Manufacturing processes

Metallurgical plants

Smelters, steel mills, aluminum refiners

Metal fumes (lead, arsenic, zinc)

Agricultural activities

Crop spraying and dusting

Pest and weed control

Organic phosphates chlorinated hydrocarbons

Solvents Spray painting inks

Automobile assembly & furniture appliances finishing

Hydrocarbons and other organic vapours

Nuclear energy Ore preparation Crushing grinding and screening

Uranium and beryllium dust

Classification of air pollution sources and emissions

Effects of air pollution

Air pollution has both direct and indirect impact on :-

Human bodyAnimal lifePlant kingdomConstruction materialsClimateEntire Ecosystem

Effects of air pollution on human healthAir is a fundamental element of human life as

it makes breathing problems, pollutants enter into the human lungs through the following mechanisms:-

Effect of air pollution on PlantsThe extent of injuries or damage of individual plants

depends upon:-I. The nature and amount of pollutantsII. Type of soilIII. Relative humidity IV. Amount and type of plant food materialsV. Stage of plant growthVI. Viability of plant the plantVII. Time of exposure and amount of light

PREVENTION OF AIR POLLUTION

Control measuresTo organize the air quality management.To protect the human beings as well plants

and animals life, and material from harmful effects.

Reducing the air pollution in highly polluted areas.

Retaining the existing air quality in areas currently less polluted.

Reducing the long range transport of air pollutants.

THAN

KU