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Sources of Air Pollution are four mobile sources, stationary sources,point sources andarea sources

 Sources of Air Pollution

In discussions of air pollution sources, four terms are routinely used:

  1.  Mobile sources
  2.  Stationary sources
  3.  Point sources
  4.  Area sources

 Mobile sources

Mobile sources are generally related to transportation. Mobile sources are not included

within the general parameters for fugitive emissions and, therefore, will be given no further

consideration in this course.

 Stationary sources

Stationary sources define emission sources that are fixed and include all forms and types of

manufacturing, chemical and petroleum processing, power generation, and small business

facilities.

Point sources

A stationary point source refers to any place within a facility from which emissions are

possible. For a given facility, a stack may be one point source. An emission leak within a

process is also considered a point source. An automobile or a truck would represent a point

source or mobile source.

Area sources

Area source refers to any one of several sources contributing to the air pollution of a given

geographic area. Area sources may be stationary, mobile, or a combination of stationary and

mobile

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