Why do we need to control air pollution, Civil Engineering

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Why do we need to control air pollution?

a. It causes harmful effects on human health, Materials and property, Plants and Animals, Visibility, Global climate and others

b. Chronic Effects

Long-term, low conc

c. Acute Effects

Short-term, high conc.
Typically during industrial accidents or air pollution emergency episodes

d. Dosage = Conc. in breathed air * time

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