Question

Discuss the nature of pollutants involved in water pollution in our country.

Answer 1

1. Organic pollutants: These include sewage, detergents, and animal or plant wastes, which lead to oxygen depletion in water bodies.
2. Inorganic pollutants: These consist of heavy metals like mercury and lead from industrial effluents and pesticides that contain chemicals toxic to biota.
3. Thermal pollutants: This refers to heated water released from industries, which negatively alters the natural life cycles of aquatic organisms.
4. Oil and hydrocarbons: These result from toxic chemical spills, which severely affect marine life and damage coastal ecosystems.
5. Pathogens: These disease-causing organisms are present in domestic sewage and tannery wastes, leading to various waterborne diseases.