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SOIL POLLUTION &
IT’S REMEDIES
Environmental Science
CONTENTS
• What is Soil..?
• What is soil pollution ?
• How is it caused ?
• Types of soil pollution .
• What are the effects of soil pollution ?
• How can we control soil pollution ?
What is Soil..??
• Soil is the thin layer of organic and inorganic
materials that covers the Earth 's rocky surface.
• Soil is composed of particles of broken rock
that have been altered by chemical and mechanical processes that include weathering and erosion.
SOIL POLLUTION
•
It is defined as the build-up in soils of persistent toxic compounds, chemicals, salts, radioactive materials, or disease causing agents, which have adverse effects on plant growth and animal health.
•
Soil pollution is also caused by means other than the direct addition of xenobiotic (manmade) chemicals such as agricultural runoff waters, industrial waste materials, acidic
Causes of Soil Pollution
• Seepage from a landfill
• Discharge of industrial waste into the soil
• Percolation of contaminated water into the soil
• Rupture of underground storage tanks
• Excess application of pesticides, herbicides or
fertilizer
• Solid waste seepage
• Deforestation and Soil erosion
Excess application of pesticides etc.
Excess use & disposal of Plastics and polyethene wastes Industrial seepage Solid waste seepage
The most common chemicals involved in causing soil pollution are:
• Petroleum hydrocarbons
• Heavy metals
• Pesticides
• Solvents
Types of Soil Pollution
• Agricultural Soil Pollution
i) pollution of surface soil ii) pollution of underground soil
• Soil pollution by industrial effluents and solid wastes
i) pollution of surface soil ii) disturbances in soil profile
• Pollution due to urban activities
i) pollution of surface soil ii) pollution of underground soil
Agricultural Soil Pollution
• Plants on which we depend for food are under
attack from insects, fungi, bacteria, viruses, rodents and other animals, and must compete
with
IT’S REMEDIES
Environmental Science
CONTENTS
• What is Soil..?
• What is soil pollution ?
• How is it caused ?
• Types of soil pollution .
• What are the effects of soil pollution ?
• How can we control soil pollution ?
What is Soil..??
• Soil is the thin layer of organic and inorganic
materials that covers the Earth 's rocky surface.
• Soil is composed of particles of broken rock
that have been altered by chemical and mechanical processes that include weathering and erosion.
SOIL POLLUTION
•
It is defined as the build-up in soils of persistent toxic compounds, chemicals, salts, radioactive materials, or disease causing agents, which have adverse effects on plant growth and animal health.
•
Soil pollution is also caused by means other than the direct addition of xenobiotic (manmade) chemicals such as agricultural runoff waters, industrial waste materials, acidic
Causes of Soil Pollution
• Seepage from a landfill
• Discharge of industrial waste into the soil
• Percolation of contaminated water into the soil
• Rupture of underground storage tanks
• Excess application of pesticides, herbicides or
fertilizer
• Solid waste seepage
• Deforestation and Soil erosion
Excess application of pesticides etc.
Excess use & disposal of Plastics and polyethene wastes Industrial seepage Solid waste seepage
The most common chemicals involved in causing soil pollution are:
• Petroleum hydrocarbons
• Heavy metals
• Pesticides
• Solvents
Types of Soil Pollution
• Agricultural Soil Pollution
i) pollution of surface soil ii) pollution of underground soil
• Soil pollution by industrial effluents and solid wastes
i) pollution of surface soil ii) disturbances in soil profile
• Pollution due to urban activities
i) pollution of surface soil ii) pollution of underground soil
Agricultural Soil Pollution
• Plants on which we depend for food are under
attack from insects, fungi, bacteria, viruses, rodents and other animals, and must compete
with
Bibliography: • Wikipedia.org • Livescience.com • Google images • Buzzle.com THANK YOU