How do industries pollute air and water? Explain with examples.
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Answer
Causes for air pollution:-
Presence of high proportion of undesirable gases like sulphur dioxide and carbon monoxide.
Air borne particulate materials contain both solid and liquid particles like dust, sprays, mist, smoke and pollen.
Smoke emitted by factories & automobile ignoring pollution norms.
Leakage of toxic gas, e.g., Bhopal gas tragedy.
Causes for water pollution: -
Discharge of organic and inorganic industrial waste and effluents into rivers.
Electroplating industries that let out dyes, detergents, acids, salts and heavy metals like lead and mercury, pesticides, fertilisers, synthetic chemicals with carbon, plastics and rubber into water bodies.
Discharge of major solid wastes into water bodies.
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