About half a century ago, following the introduction of urban sprawl up
concept, various studies have been conducted to describe the mechanism
and the formation of this phenomenon. Some of these studies aimed at
finding the negative and positive impacts of such phenomenon on urban
area with emphasis on how such concept may be looked open from
environmental, economical and social perspectives.The main research
objective, in this article, focuses on adverse impacts of urban sprawl
on air pollution in a mega city such as Tehran. Therefore, attempts have
been made to show a relationship between urban sprawl up and the
increase in air pollutants concentration. Three methods have been
investigated to validate such a concept methodologically. Tehran has
been chosen as a case study to further demonstrate validity of such a
correlation between urban sprawl up and rise in air pollution
scientifically. The results confirmed a function relating air pollution
increase to urban sprawl up.
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