What is air pollution?
Category:Environmental Education

Air pollutants sources can be divided into two groups: nature-made and man-made. These include floating dust, sand storm, industrial wastes, tail gas and the incineration of crops, etc. Also, it can be classified as primary pollutants, such as PM (particular matter) and sulfur dioxide, and secondary pollutants, such as photochemical smog.

The ways to control air pollution include environmental afforestation, climate regulation, dust interception, harmful gases absorption and improvement of the self-cleaning capacity of the atmosphere; centralized handling with unavoidable pollutants; reduction or alleviation of the environmental pollutants’ harmful effect; reinforcement of ventilation and avoiding being exposed to polluted air for a long period of time.

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