How Do Factories Pollute the Air?

Industrial pollution is one of the primary sources of environmental contamination. According to the U.S. Environmental Protection Agency (EPA), air pollution levels rose 14 percent from 1990 to 2008. This trend reflects the amount of human-caused greenhouse gas emissions in the air. Air pollution can have profound effects on the health of the entire planet.

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.