14.3 Water Pollution

Thermal pollution is the degradation of water quality by any process that changes ambient water temperature. It often results from human activities, such as industrial discharges.

Chemical pollution occurs when harmful chemicals are introduced into water bodies, making the water toxic to organisms.

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Eutrophication is a process where water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.

Point source pollution is pollution that comes from a single, identifiable source, such as a pipe or a drain.

Non-point source pollution is pollution that comes from multiple, diffuse sources, such as runoff from agricultural fields.

Thermal pollution can lead to decreased oxygen levels in water, harming fish and other aquatic organisms.

Biological pollution refers to the introduction of invasive species or pathogens into water bodies, disrupting local ecosystems.

The main causes of chemical pollution include industrial discharges, agricultural runoff, and improper waste disposal.

Water pollution can be prevented by reducing waste, using eco-friendly products, and properly treating wastewater.