This document classifies and describes various types of water pollutants, including: 1. Organic wastes like human/animal waste and decaying vegetation which deplete oxygen levels. 2. Inorganic chemicals, toxic metals, acids, alkalis, soluble and insoluble salts from industrial effluents. 3. Organic pollutants from sewage, slaughterhouses, food processing including carbohydrates, proteins, oils, aldehydes, polychlorinated biphenyls, and phenolic compounds. 4. Biological pollutants such as bacteria, viruses, parasites, and algae.

1. Water Pollution MAJID MOHIUDDIN

2. CLASSIFICATION OF WATER POLLUTANTS 8. Fallout products, radioactive waste etc. 8. Radioactive substances 7. Silt from land erosion 7. Suspended materials 6. Water used for cooling in industry. 6. Heat 5. Hg, Cd 2+, Pb 2+ , etc. 5. Inorganic chemicals 4. Nitrates, phosphates. 4. Plant nutrients 3. Detergents, oil, insecticides. 3. Organic molecules 2. Bacteria and viruses 2. Infectious agents 1. Human, animal waste, decaying vegetation. 1. Oxygen demanding wastes Examples Type