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Dirt

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Dirt

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

Common types of dirt include:

Contents

  • Cleaning 1
  • Disposal 2
  • Health 3
  • Neurosis 4
  • Exhibitions and studies 5
  • References 6
  • Further reading 7
  • External links 8

Cleaning

Dirty things may be cleaned with solutions of soap and assorted chemicals. Domestic life largely consists of washing, sweeping, and so forth.[1]

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[2]

Disposal

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.[3]

Health

Modern society is now thought to be excessively clean. Lack of contact with hypothesised to be the cause of the epidemic of allergies such as asthma.[4] The human immune system requires activation and exercise in order to function properly and exposure to dirt may achieve this.[5] For example, the presence of staphylococcus bacteria on the surface of the skin regulates the inflammation which results from injury.[6]

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.

Neurosis

People may become obsessed by dirt and engage in fantasies and compulsive behavior about it, such as making and eating mud pies.[7] 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.[8]

Exhibitions and studies

A season of artworks and exhibits on the theme of dirt was sponsored by the Wellcome Trust in 2011. 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.[9]

References

  1. ^ Mindy Lewis (2009), DIRT: The Quirks, Habits, and Passions of Keeping House, Seal Press,  
  2. ^ John B. Hutchings (2003-04-30), Expectations and the Food Industry: The Impact of Color and Appearance, Springer, p. 115,  
  3. ^ V.K. Prabhakar (2000), Encyclopaedia of Environmental Pollution and Awareness in the 21st Century, p. 10,  
  4. ^ Dirt can be good for children, say scientists, BBC, 23 November 2009 
  5. ^ Mary Ruebush (2009-01-06), Why Dirt Is Good: 5 Ways to Make Germs Your Friends, Kaplan Publishing,  
  6. ^ Lai, Y; Di Nardo, A; Nakatsuji, T; Leichtle, A; Yang, Y; Cogen, AL; Wu, ZR; Hooper, LV et al. (22 November 2009), "Commensal bacteria regulate Toll-like receptor 3–dependent inflammation after skin injury", Nature Medicine (Nature Medicine) 15 (12): 1377–82,  
  7. ^ Lawrence S. Kubie, "The Fantasy of Dirt",  
  8. ^ Valerie Curtis, Adam Biran (2001), "Dirt, Disgust, and Disease: Is Hygiene in Our Genes?", Perspectives in Biology and Medicine 44 (1): 17–31,  
  9. ^ Brian Dillon (23 March 2011), "Dirt: the Filthy Reality of Everyday Life, Welcome Collection",  

Further reading

  • Terence McLaughlin (1971), Dirt: a social history as seen through the uses and abuses of dirt, Stein and Day,  
  • Pamela Janet Wood (2005), Dirt: filth and decay in a new world arcadia, Auckland University Press,  
  • Ben Campkin, Rosie Cox (2007), Dirt: new geographies of cleanliness and contamination, I.B. Tauris,  
  • Virginia Smith et al. (2011), Dirt: The Filthy Reality of Everyday Life, Profile Books Limited,  

External links

  • Dirt season at the Wellcome Collection
  • Dirt, a 2008 documentary film about dirt and impurity, National Film Board of Canada
  • Dirt! The Movie, a 2009 documentary film that explores the relationship between humans and soil.
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