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Illustration: The Unswept Floor (detail)
Illustration: The Unswept Floor (detail)

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Kunstformen der Natur (1904) by Ernst Haeckel
Kunstformen der Natur (1904) by Ernst Haeckel

Dirt is unclean matter, especially when in contact with a person's clothes, skin, or possessions, making them dirty.

Common types of dirt include:


Wiktionary definition

  1. soil or earth
  2. A stain or spot (on clothes etc); any foreign substance that worsens appearance
  3. Previously unknown facts, or the invented "facts," about a person; gossip


Dirty things may be cleaned with solutions of soap and assorted chemicals. Domestic life largely consists of washing, sweeping, and so forth.

In a commercial setting, a dirty appearance gives a bad impression to customers at a place such as a restaurant. This type of dirt may be classified:

  • temporary: streaks of dirt and detritus that may be removed by ordinary daily cleaning
  • permanent: ingrained dirt stains or physical damage which require major renovation to remove
  • deliberate: design dirt such as decor in dirty yellow or grunge styling


As cities developed, arrangements were made for the disposal of dirt. In Britain, the Public Health Act 1875 required households to place their refuse into a container which could be moved so that its contents could be carted away. This was the first legal creation of the dustbin.


Modern society is now thought to be excessively clean. Lack of contact with microorganisms in dirt when growing up is hypothesised to be the cause of the epidemic of allergies such as asthma. or example, the presence of staphylococcus bacteria on the surface of the skin regulates the inflammation which results from injury.

People and other animals may eat dirt. This is thought to be caused by mineral deficiency and so the condition is commonly seen in pregnant women.


People may become obsessed by dirt and engage in fantasies and compulsive behavior about it, such as making and eating mud pies. The source of such thinking may be genetic, as the emotion of disgust is common and a location for it in the brain has been proposed.

Exhibitions and studies

A season of artworks and exhibits on the theme of dirt was sponsored by the Wellcome Trust in 2011 in the exhibition Dirt: The Filthy Reality of Everyday Life . The centrepiece was an exhibition at the Wellcome Collection showing pictures and histories of notable dirt such as the great dust heaps at Euston and King's Cross in the 19th century and the Fresh Kills landfill which was once the world's largest.


Dirty things


See also

Unless indicated otherwise, the text in this article is either based on Wikipedia article "Dirt" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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