Water pollutants - water pollution, Biology

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Water Pollutants - Water Pollution

Water pollution can occur on account of any one or more of the following agents:

1. Biological: Pathogens such as virus, bacteria, protozoa and worms.

2. Chemical:

Inorganic: nitrates, phosphates, chloride and fluoride,
Organic: pesticides, dyes, chloro-compounds, phenols, points and plastics.
Heavy metals: soluble heavy metal ions such as mercury, lead, cadmium, copper, zinc and their organometallic compounds.

3. Physical: Waste heat from industrial plants

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