Soil pollution

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

pollution

Types of Pollution

Air Pollution

Water Pollution

Soil Pollution

Noise Pollution

Radioactive Pollution

Thermal Pollution

Personal Pollution

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

Soil pollution• 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.

SOURCES OF SOIL POLLUTION♥ Acid rains

♥ Excess application of pesticides, fertilizer

♥ Urban solid wastes

♥ Disposal of Industrial wastes and sludge over land

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

Fertilizers

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

Fertilizers Excess use of Na,

Mg, Ca, K, Zn in the form of fertilizers & pesticides inhibit plant growth & reduce crop yield.

Urban wastes These wastes include a

wet and fermentable fraction, made of food residuals from houses, restaurants and food industries, paper.

Industrial waste

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

Organic waste

Compounds

Excess use of fertilizers

POLLUTANTS

PollutantsOrganic 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.

ORGANIC WASTE

COMPOUND WASTE

p0llutants

Excess use of fertilizers Excess use of Na, Mg, Ca, K, Zn, in

the form of fertilizers & pesticides inhabit plant growth & reduce crop yield.

effect ON

Humans Effects

Causes cancers including leukemia.

Mercury can increase the risk of kidney damage.

Also cause headaches, eye irritation & skin rash.

Animals Effects

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

Agricultural Effects

Decrease soil fertility.Reduced crop yield.Larger loss of soil & nutrients.Reduced nitrogen fixation.

Urban EffectsPublic health problems.Pollution of drinking water sources.

Foul smell & release of gases. Waste management problems.

Control of soil pollution

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.

PRACTICE EVERY REMIDESYOUR LIFE

TO SAVE OUR SOIL FOR KEEPING IT’S NATURAL

FERTILITYAND FOR FUTURE TOO…

Thank You

CREATED BY:ANUROOP V.S