The natural resource, soil, is the thin layer of organic and inorganic materials that covers the Earth’s rocky surface. Soil formation involves a large number of factors and is a time taking process. Mechanical weathering of rocks due to temperature changes, wind, moving water, lichens are a few of the contributing factors.
Pollutants like toxic compounds, radioactive materials, salts, chemicals, when added to the soil, deteriorate the quality, texture and mineral content of the soil. This leads to soil pollution. Soil pollutants disturb the biological balance of the organisms in the soil. The adverse effect of this contamination is reduced soil fertility affecting plant and animal growth.
Major causes of soil pollution are:
- Random use of fertilizers
- Random use of pesticides, insecticides and herbicides
- Disposal of large quantities of solid waste
- Deforestation and soil erosion
- Addition of industrial contaminants
- Dumping of radioactive wastes
Control of soil pollution
Various steps suggested … Read More