Pathogens (Disease-causing organisms like bacteria, viruses, and parasites) Example: E.Coli from untreated sewage or animal waste in water Organic Ma

Pathogens

Disease-causing organisms like bacteria, viruses, and parasites.

Example of Pathogen

E.Coli from untreated sewage or animal waste in water.

Organic Matter

Decomposing plant and animal material that depletes oxygen in water.

Example of Organic Matter

Sewage and manure runoff that leads to low oxygen levels and harms aquatic life.

Thermal Pollution

Unnatural heating of water, which reduces oxygen levels and affects ecosystems.

Example of Thermal Pollution

Power plants releasing hot water into rivers, making it harder for fish to survive.

Organic Chemicals

Toxic carbon-based compounds from industry, agriculture, or household waste.

Example of Organic Chemicals

Pesticides from farms contaminating lakes and rivers, harming fish and plants.

Inorganic Chemicals

Non-carbon-based substances like salts, acids, and metals.

Example of Inorganic Chemicals

Nitrates and phosphates from fertilizers causing eutrophication (harmful algae blooms).

Heavy Metals

Toxic metals that accumulate in living organisms and ecosystems.

Example of Heavy Metals

Mercury (Hg) from coal-burning power plants, which builds up in fish and poisons predators (including humans).