Air Pollution: A First Film (1971)

Polluted air is a significant issue in many cities, often forming a layer of dirty air beneath cleaner air. This pollution can damage rubber products, paint, and insulation, and negatively affect plant life. The sources of air pollution include burning fuels for electricity, transportation, heating, and industrial processes. Scientists are actively studying air pollution to identify its causes and track its levels, with the goal of finding solutions. The text encourages readers to consider how air quality can be improved and what actions they can take.

**Keywords:** air pollution, cities, dirty air, clean air, damage, rubber, paint, insulation, plants, sources, burning, electricity, transportation, heating, industry, scientists, solutions, improvement, actions.

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