presentation on soil pollution

2. Pollution is the introduction of contaminants
into the natural environment that cause
adverse change. Pollution can take the form of
chemical substances or energy, such as noise,
heat or light. pollutants, the components of
pollution, can be either foreign
substances/energies or naturally occurring
contaminants. Pollution is often classed
as point source or nonpoint source pollution

3. Air Pollution
Water Pollution
Soil Pollution
Noise Pollution
Radioactive Pollution
Thermal Pollution
Personal Pollution

4.  Soil can be define
as the uppermost
crust of earth
mixed with organic
material and in
which animals and
microorganisms
live, and plants
grow.

6. • Soil pollution is defined or can be described as the
contamination of soil of a particular region.
• Soil pollution is caused by addition of chemicals,
which reduces it’s productive capacity.
• In rural areas more fertilizers & pesticides
are used in agricultural operations & the residual
chemicals remain in the top layers of soil.

8.  Acid Rain is caused
by air pollution.
The acidic water
falls on the soil and
pollutes it by
making the soil
acidic.

9.  The use of excess
fertilizers to increase
the crop yields makes
the soil either acidic or
alkaline and pollutes
it.
 Ex: ammonium
sulphate , sodium
nitrate

10.  Excess use of Na, Mg,
Ca, K, Zn in the form
of fertilizers &
pesticides inhibit plant
growth & reduce crop
yield.

11. Urban wastes
 These wastes include a wet
and fermentable fraction,
made of food residuals
from houses, restaurants
and food industries, paper.

12.  This pollution can be
very massive in certain
areas, where the
industries discharge
their wastes and really
great is the variety of
pollutants: heavy
metals compounds,
asbestos, organic
compounds

13. Organic waste
Compounds
Excess use of
fertilizers
POLLUTANTS

14. Organic waste
Organic waste enter the soil pores &
decompose pathological bacteria spread infection.
Compounds
Compounds containing arsenic, mercury,
chromium, nickel, lead, Zinc, & iron are toxic to the
life.
Fluorides also affect the plant development.

17. Excess use of fertilizers
Excess use of Na, Mg, Ca, K, Zn, in the form
of fertilizers & pesticides inhabit plant growth
& reduce crop yield.

18. Animals
Agricultural
Urban

19. Humans Effects
 Causes cancers including leukemia.
 Mercury can increase the risk of kidney
damage.
 Also cause headaches, eye irritation & skin
rash.

21. Animals Effects
 Small life forms may consume harmful
chemicals which may then be passed up
the food chain to large animals.

22. Agricultural Effects
 Decrease soil fertility.
 Reduced crop yield.
 Larger loss of soil & nutrients.
 Reduced nitrogen fixation.

23. Urban Effects
 Public health problems.
 Pollution of drinking water sources.
 Foul smell & release of gases.
 Waste management problems.

24.  Ban on use of plastic bags which are major
cause of pollution in cities.
 Recycling of plastic wastes to manufacture
many ‘remake’ items.
 Ban on deforestation.
 Encouraging forest replantation
programmes.
 Use carefully the fertilizers & pesticides
preferable in optimal dose.