Soil Pollution
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The undesirable change in the properties of soil due to contamination of harmful products such as pesticides, insecticides and other chemicals is called soil pollution.
Due to soil pollution quality of soil deteriorates and hence becomes unsuitable for use.
Types of Soil Pollutants
Various soil pollutants are pesticides.
Sources of Soil Pollution:
Industrial Waste: During manufacturing, industries produce wastes such as chemicals, paints, paper, and pulp mills and foundry waste.
Domestic Waste: It includes garbage, domestic refuse which include plastic, papers, glass, old construction materials, toxic substances, paper, waste food.
Chemical Fertilizers: Farmers use chemical fertilizers so as to provide nutrients such as nitrogen, phosphorus, and potassium for better productivity.
Biomedical Waste: It include expired medicines, dressing materials, cotton with blood and body fluid, syringes, dissected body organs, blades, needles etc.
Pesticides: The chemicals used to kill pest are pesticides usually in the farm. It kills natural bacteria in the soil and reduces biological level.
Effects of Soil Pollution:
Sewage containing mud include many disease causing agents which can cause diseases.
Human and animal excreta contains pathogens that causes problem to crops when used as manure. Loss of Fertility of Soil: Due to soil pollution soil loses its fertility.
Water Pollution: Soil pollution can lead to pollution of surface water as well as ground water.
Radioactive pollution: Radioactive materials from polluted soil enter in crop and then in livestock and humans.
