Types of Pollutants.In order to understand the causes of, Air pollution several divisions can be made. Primarily air pollutants can be caused. By primary sources or secondary sources. The pollutants that are a direct result of the process can be called primary, pollutants. A classic example of a primary pollutant would be the sulfur-dioxide emitted from factories.Secondary pollutants are the ones that are caused by the inter mingling and reactions of primary pollutants. Smog created. By the interactions of several primary pollutants is known to be as secondary pollutant.
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