2.  Historically, land is a dumping ground for
waste
 6 billion tons of waste produced each
year
• Agricultural
• Commercial
• Industrial
• Domestic
 Normally, not a problem if disposed of
properly

3.  Household wastes – breeding ground for
rats, flies, mosquitoes
 One quart used motor oil – contaminates
100,000’s gallons of drinking water
 Leachate – liquid that results when water
moves through any non-water media and
collects contaminants

4.  Land = earth = soil
 Soil is critical to life
• Plants get nutrients from soil
• Animals get nutrients from plants

5.  Four major components
• Mineral particles (rocks and clays)
• Organic matter
• Water
• Air
 Soils vary in different aspects
• Color
• Thickness
• Layers
• Amount of clay, salt, & organic matter

6.  Factors
affecting how fast pollutants move
through soil
• Soil composition
• Soil structure
• Pore sizes
• Amount of organic matter

7. Image: www.lee-county.com
O Horizon –
Organic matter
A Horizon – Top
soil
B Horizon –
Subsoil
C Horizon –
Parent Material

8. 1.People Cut forest for furniture.
2.Plastic is the main source of land pollution.
3.People throw house garbage on roads.
4.Some industries throw their waste on land.

9. 1.People should not cut trees for making furniture.
2.People should not throw garbage on land.
3.Plastic bags should be avoided for prevention of
land pollution.
4.Industries should not throw there waste on land.