Water pollution is the contamination of water sources by substances which make the water unusable for drinking, cooking, cleaning, swimming, and other activities.
Causes of Water Pollution
Pathogens:
One of the most severe pollutants is the disease-causing microorganisms called pathogens.
Organic Wastes:
Organic water pollutants include food waste, detergents, leaves, grass, etc.
Chemical Pollutants:
Chemical pollutants include heavy metals such as mercury, lead, cadmium, etc., solvents from industries, pesticide run-offs, oil spills from ships, etc.
