Air Pollution
By WTIFS
Outline
I. Introduction A. Importance B. Types
II. Outdoor air pollution A. Source B. Harm C. Solution
III. Indoor air pollution A. Harm B. Source C. Solution
IV. Sealed-space air pollution A. Source B. Harm C. Solution
Intro
≥15 cubic meters of air per day
≥2,000,000 people died per year
Importance


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