Water pollution results from the contamination of water sources, mainly because of human actions. Key causes of water pollution include:
- Industrial Effluents: Factories and industries release hazardous chemicals, heavy metals, and refuse into water, rendering it unfit for drinking and harming aquatic organisms.
- Agricultural Drainage: The use of pesticides, fertilizers, and herbicides in farming causes runoff, polluting rivers, lakes, and subsurface water supplies.
- Sewage and Waste Discharge: The incorrect disposal of untreated sewage and refuse into water sources elevates bacterial contamination and damages aquatic environments.