Environmental Pollution
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Objectives

Man is one of the species who inhabit the earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

In this presentation we will be able to know about-

Objectives

  • Primary & secondary pollutants

  • Acid rain

  • Ozone depletion

  • Green house effect

  • Noise pollution

  • Environment

  • Biosphere

  • Ecosystem model

  • Atmosphere

  • Atmospheric pollution


Environment earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

That which surrounds, the total sum of the condition of the surroundings within which an organism, or group, or an object,exists(including the natural as modified by human activity & the artificial).


Abiotic Environment earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

Atmosphere

Sea

Biotic Environment

Environment is the sum of biotic & abiotic component


Atmosphere earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

Biosphere

The entire part of earth's land, soil, water & atmosphere in which living organism are found is called biosphere

Or

The combined area lithosphere, hydrosphere of & atmosphere is known as biosphere.

Biosphere

Hydrosphere

Lithosphere

Biosphere Model


Solar Radiation earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

Sun provides energy for plant photosynthesis

Climate

Amount of solar radiation varies with latitude & hence effects climate. solar radiation also power weather systems

Volcanic activity ,mountain, ranges etc. can also affect climate

Vegetation

Animals

Climate interacts with geology in soil formation provides water for solar climate.

Soil provides water & nutrients for plants together with a physical base in which plants can root themselves.

Geology

Soil

Plants provides food for animals

Animals alter vegetation by browsing & grazing. Human have significantly altered vegetation patterns through modification for agriculture.

Vegetation gives off water vapour who helps to stabilize the climate of the earth.

Climate restricts the type of plants & animals that can survive in a particular ecosystem. Water & temperature are two main climate controls.

Dead plants & animals decomposes & return nutrients to the soil. Nutrients are also returned to the soil through animal excrement.

Biotic

Component

AbioticComponent

Soil [provides habitat including water & air for many invertebrates addition many animals have evolved specialist cope with different soils for example the feet of camel.

Ecosystem Model


Atmosphere earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

  • Our current atmosphere is a mixture of many different gases & suspended particles. It is almost same every where up to an altitude of 80 Kms.The atmosphere is divided in to 4 layers-


Composition of Atmosphere earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.


21% earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

18%

14%

05%

Atmospheric Pollution

Is an unwanted change in the quality of earth's earths atmosphere caused by emission of gases caused by emission of gases due to burning of fossil fuel,transportation,industrial institution etc.

42%

21%

Transportation

Fuel

Industries

waste

Other


Different pollutants
Different Pollutants earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

  • Gaseous waste: Oxides of nitrogen,SO2,CO2,CO.Cl,Br,I,O3 & smog.

  • Complex organic chemicals: Benzene, ether.

  • Acid prop lets: H2SO4, HNO3

  • Agrochemicals: fertilizers, pesticides,herbicixles,fungicides, rematicides,weedicides,bectrecides etc.

  • Fluorides

  • Metals: Mercury,lead,Cd,Zn,Fe,Ni etc.

  • Solid wasre:Garbage,plastic etc.

  • Radioactive waste: Nuclear reacters,uranium,nuclear explosion.

  • Noise waste


Classification of Air Pollutents earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

Secondary pollutants :These result from chemical reactions between two or more air components.

  • Natural Pollutants: The pollution which comes out from natural sources such as forest fires volcanic eruption decomposition of organic matter & natural radioactivity.

Primary Pollutants: Harmful chemical that directly enters the air as a result of human activity. These are deforestisation burning of fossil fuel industrialization warfare etc.

Formation of secondary pollutants

2SO2+O2 2SO3

2SO3+H2O H2SO4 (Secondary pollutant)


NO earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.2,SO3,HNO3, H2SO4,H2O2,O3, PANs,MostNO3-- & SO4-2

CO,CO2,NO,Most Hydrocarbons, Most SPM

Solar radiation

Primary Pollutants

Secondary Pollutants

Volcano

Factory

Formation of secondary pollutents


Environmental challenges
Environmental challenges earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

  • Green house effect: Increasing global temperature. Scientists predicting that earth's temperature will increase by 3-40C by year 2030 if the pollution continues to increase at the same pace.

  • Ozone depletion: As ozone layer in the upper atmosphere absorbs incoming harmful ultraviolet radiation but it is now getting thinner & more UVs are reaching in to earth creating different disease like cancer& eye problems.

  • Photochemical smog: In 1952 London was covered by smog for 10 days .This smog was caused by fog, smoke, ash,& SO2 plus NO2.Sunlight played a great role in the formation of this smog .Though deaths occurring at that time were not directly attributed to the smog later statistics confirmed that 6,000 more people.

Acid rain: is caused by oxides of nitrogen & sulphur.It increases acidity of soil & effects the growth of trees & plants. The majestic monument Taj Mahal in India is also affecting by this.


+ earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

water

SO2 & NOX

Acid Rain

Solar Radiation

H2SO4 (Sulphuric Acid)

HNO3 (Nitric Acid)

Acid Rain

Factories, Transportation

Lake

Sea

SEA


Earth earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

A

Green House Effect

Methane

Carbon Dioxide

Nitrous oxide

Ozone

Earth

This natural balance may be distorted by Green House Effect as gases such as carbon dioxide have built up in the atmosphere trapping more heat

Green house gases in natural condition insulates the earth against extreme of temperature by limiting both incoming solar radiation & escape of reradiated heat in to space.

Contribution of different gases to cause green house effect

Less reradiated heat escapes in to space

Some reradiated heat escapes in to space

sun

sun

sun

More reradiated heat reflected back to earth

Infra-red radiation

Some reradiated heat reflected back to earth

Surface Temperature increases

Surface Temperature normal

Atmosphere

Atmosphere

Unbalanced Green House Effect

Naturally Moderated Green House Effect


NO earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.2 Nitrogen dioxide

H2O Water

Hydrocarbons

Ultraviolet Radiation

NO Nitric Oxide

O2 Molecular Oxygen

O Atomic Oxygen

O3 Ozone

HNO3 Nitric Acid

PANs Peroxyacyl nitrates

Aldyhydes (e.g. Formaldehyde)

Photochemical Smog

Formation of Photochemical Smog


Ozone layer depletion earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

ozone

Ultraviolet rays from Sun

Chlorofluorocarbons are entering in to atmosphere releasing chlorine. The chlorine than break down the ozone

The Ozone layer in stratosphere blocks these harmful UV rays

Oxygen

Whole in Ozone layer

chlorine

The chlorine released from CFCs break down the ozone molecule.

More ultraviolet radiations are reaching in to earths surface as there is a whole in ozone layer.


Noise pollution
Noise pollution earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

This era has rightly been called as the era of noise.because heavy industrialization we are exposed to a high level of noise all around us. Noise has become a very important stress factor in modern life.it leads many health hazards.Some of the sources of noise pollution are aircraft,automobiles,factories,loudspeakers& pop& Rock-n-Roll music in clubs

. Noise produces following health problems-

1)Auditory fatigue

2)Deafness or impaired vision

3)Rise in blood pressure, pulse

rate

4)Headache

5)Nausea

6)Disturbed sleep

7)Emotional disturbances


SOUND INTENSITY earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

High Approximate 80db

Pleasant below than 80dB

Very High above than

100db

Heavy Traffic

Quit Conversation

Jet take off

Loud Conversation

Loudspeaker

Ticking Clock

Quit Raining

Sports car

Space vehicle launch


Noise Source & their Intensity earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.


Conclusion
Conclusion earth.he is the only one who has interfered with various natural processes for use of both biological & physical resources to meet his multiple demands,man has polluted all the three realms of the earth-lithosphere,hydrosphere & atmosphere.it is essential for us to know about environment & its pollution.

We know that certain environmental conditions like air,water,& food are essential for man,s survival.apart from their availability their quality & quantity must be assured according to man,s natural & acquired capacity for sustenance progress in industrialization has brought environmental hazards such as air water & noise pollution.These have caused many health problems & diseases.

As it has been said-

we do not inherit the environment from our forefathers,we borrow it from future generation.

Stockholm conference of 1972 proclaims that:

The protection & improvement of human environment is a major issue which affects the well being of people & economic development throughout the world&it is duty of all governments & people to common efforts for the preservation & improvement of environment for the benefit of all people & their prosperity


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