question: If dust is mostly dead skin then why do abandoned places get dusty?
comment: House dust is mostly dead skin. There is plenty of other stuff in the air that settles elsewhere.
passages: Areas with dry or desert climates, especially when combined with high winds, have more severe problems of fugitive dust. Dry and disturbed surfaces can release wind-borne fugitive dust for many months before there is sufficient rainfall to coagulate the soil. Surfaces susceptible to fugitive dust emissions are both natural and man-made.
  
  Specific sources include open fields and parking lots, paved and unpaved roads, agricultural fields, construction sites, unenclosed storage piles, and material transfer systems.
   Surface mining operations are also sources of fugitive dust as a result of many mining operations including haul roads, tailing piles, drilling, blasting, the removal of overburden and the actual mineral extraction.
  
  In 1995, 28 percent of fugitive dust in the US originated from unpaved roads, 23 percent from construction sites, 19 percent agricultural, 15 percent from paved roads, 5 percent from wind erosion, 1 percent from mining according to the EPA.
  
  Section::::Effects.
   Dust emitted from processing equipment that may not contain typical soil components is also considered fugitive dust. In this context, fugitive dust is dust that has "escaped" during any mechanical process and entered the atmosphere. Fugitive dust emissions within a structure can not only cause respiratory problems but, when generated during the processing of combustible materials, can cause fire and blast damage if ignited.
   Various methods are employed to minimize fugitive dust. In agricultural settings, bare soil can be covered with crop residue or planted with cover crops between seasons. Dirt roads can be sprayed with water to contain dust, or stabilized with chemicals that form hard surface crusts, or paved with aggregate or a hard surface. In windy areas, wind barriers including fences or vegetation can reduce wind speed and trap larger particles already in the air. Irrigation can be used to keep soil moist between natural rainfalls.
   In a commercial setting, a dirty appearance gives a bad impression. An example of such a place is a restaurant. The dirt in such cases may be classified as temporary, permanent, and deliberate. Temporary dirt is streaks and detritus that may be removed by ordinary daily cleaning. Permanent dirt is ingrained stains or physical damage to an object, which require major renovation to remove. Deliberate dirt is that which results from design decisions such as decor in dirty orange or grunge styling.
  
  Section::::Disposal.
   Most governmental EPAs, including the United States Environmental Protection Agency (EPA) mandate that facilities that generate fugitive dust, minimize or mitigate the production of dust in their operation. The most frequent dust control violations occur at new residential housing developments in urban areas. United States Federal law requires that construction sites obtain permits to conduct earth moving, clearing of areas, to include plans to control dust emissions when the work is being carried out. Control measures include such simple practices as spraying construction and demolition sites with water, and preventing the tracking of dust onto adjacent roads.
   Technology to clean dust off the solar panels was considered for Mars Exploration Rover's development. In the 21st century there have been proposed ways of cleaning off solar panels on the surface Mars that are accumulating dust. The effects of Martian surface dust on solar cells was studied in the 1990s by the Materials Adherence Experiment on Mars Pathfinder.
  
  Section::::History.
   poemThe rag that wears its dirt so plainly is 
  
  for you. Such dull demeanor speaks the tongue
  
  of filthy truth. The coffee stains, the rank
  
  smell tells you something permanent occurred.
  
  The acts and words you can’t undo don’t vanish
  
  but they grow old, get darker, start to rot.
  
  Right now just see and feel those foul clichés’
  
  unpleasant stench. The cloth is worn, has lost 
  
  its shape, has been abused. But don’t reject
  
  the crusted blood and dust and lead that hang
  
  a weary head because they can’t depart.
  
  Just let them stay awhile beneath the rain,
   The U.S. Environmental Protection Agency estimated that fugitive dust was responsible for 92% of the PM-10 emissions in the United States in 1995.
  
  Section::::Sources.
  
  Fugitive dust results from dry conditions where there is insufficient moisture content in the ground to hold the soil together. Particulate matter (PM) then enters the atmosphere through the action of wind, vehicular movement, or other activities.
   Dirt
  
  Dirt is unclean matter, especially when in contact with a person's clothes, skin or possessions. In such case they are said to become dirty. Common types of dirt include:
  
  BULLET::::- Dust: a general powder of organic or mineral matter
  
  BULLET::::- Filth: foul matter such as excrement
  
  BULLET::::- Grime: a black, ingrained dust such as soot
  
  BULLET::::- Soil: the mix of clay, sand, and humus which lies on top of bedrock
  
  Section::::Exhibitions and studies.
   Fugitive dust can be controlled by the application of various chemical suppressants including lignin sulfonates, petroleum resins, latexes, salts, plastics, and wetting agents.
  
  Coal dust piles have been treated with water or other chemical surfactants to suppress dust until the moisture evaporates. Other chemicals can provide protection for up to six months. Wind fences of polyester fabric can also be used to slow wind movement and minimize fugitive dust.
  
  Section::::Regulation.
   Often, people wear an item of clothing until it falls apart. Some materials present problems. Cleaning leather is difficult, and bark cloth (tapa) cannot be washed without dissolving it. Owners may patch tears and rips, and brush off surface dirt, but materials like these inevitably age.
  
  However, most clothing consists of cloth, and most cloth can be laundered and mended (patching, darning, but compare felt).
  
  Section::::Life cycle.:Laundry, ironing, storage.
   Even when no visible dirt is present, contamination by microorganisms, especially pathogens, can still cause an object or location to be considered dirty. For example, computer keyboards are especially dirty as they contain on average 70 times more microbes than a lavatory seat.
  
  People and animals may eat dirt. This is thought to be caused by mineral deficiency and so the condition is commonly seen in pregnant women.
  
  Section::::Neurosis.
   Dust
  
  Dust is made of fine particles of solid matter. On Earth, it generally consists of particles in the atmosphere that come from various sources such as soil, dust lifted by wind (an aeolian process), volcanic eruptions, and pollution. Dust in homes, offices, and other human environments contains small amounts of plant pollen, human and animal hairs, textile fibers, paper fibers, minerals from outdoor soil, human skin cells, burnt meteorite particles, and many other materials which may be found in the local environment.
  
  Section::::Dust Mites.
   The US state of Arizona has an Agricultural Dust Program with compliance officers that inspect agricultural operations and investigate dust complaints. All farms in the state must take "reasonable precautions" to "minimize" the emission of fugitive dust. More stringent procedures must be followed in areas that don't meet Federal air quality standards.
  
  The US Federal Environmental Protection Agency has specific standards for daily average particulate matter originating from active mines. Finer particulates have been detected up to from mining operations.
  
  Section::::Other types.
   Atmospheric or wind-borne fugitive dust, also known as "aeolian dust", comes from arid and dry regions where high velocity winds are able to remove mostly silt-sized material, deflating susceptible surfaces. This includes areas where grazing, ploughing, vehicle use, and other human activities have further destabilized the land, though not all source areas have been largely affected by anthropogenic impacts. One-third of the global land area is covered by dust-producing surfaces, made up of hyper-arid regions like the Sahara which covers 0.9 billion hectares, and drylands which occupy 5.2 billion hectares.
   There are lice under the hand, ankle and foot like worms, and sores affecting the same areas. If the skin is removed, there appears from various parts of it, a very small animal which can hardly be seen.
   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 landfill.
  
  Section::::Cleaning.
  
  When things are dirty they are usually cleaned with solutions like hard surface cleaner and other chemicals solutions; much domestic activity is for this purpose — washing, sweeping and so forth.
   Fugitive dust can also harm plant life. In 1999, the National Park Service found that lichen and other non-vascular plants in the Cape Krusenstern National Monument in Alaska were affected due to dust generated from hauling ore from the Red Dog mine along a road within the monument. A follow-up study in 2006 found slightly elevated levels of lead and cadmium concentrations in small birds and voles captured along the road.
   As the saying goes, in real estate only three things matter: location, location, location. Because idled and underused infill sites are often located in distressed urban areas concerns arise about crime, safety, and access to quality education and services. These and other market factors frequently pull development to open land near traditionally desirable communities and away from urban infill sites.
  
  Section::::Challenges.:Market factors.:Greenfields competition.
   Other factors that affect solar power output include the opacity of the Martian atmosphere and Martian seasonal changes; however, this does not account for the directly observable removal of dust from the upper surfaces of the rovers as shown in the images.
  
  The Materials Adherence Experiment had a glass plate that allowed the dust to be cleared off and protected a Gallium arsenide photo-cell. It was part of the Mars Pathfinder program in the 1990s. This allowed the rate at which dust accumulated to be measured. 
  
  Section::::Noted cleaning events.
   Many areas on Mars, including the Diacria quadrangle, experience the passage of giant dust devils. When a dust devil goes by it blows away the coating of dust and exposes the underlying dark surface. Dust devils have been seen from the ground and high overhead from orbit. They have even blown the dust off of the solar panels of the two Rovers on Mars, thereby greatly extending their lives. The twin Rovers were designed to last for 3 months, instead they both lasted more than six years, and one is still going. The pattern of the tracks have been shown to change every few months.
   The parts are usually covered by unwanted substances, the contaminations or soiling. The definition used is quite varied. In certain cases these coverings may be desired: e.g. one may not wish to remove a paint layer but only the material on top. In another case, where crack proofing is necessary one has to remove the paint layer and it is regarded as an unwanted substance.
  
  The classification of soiling follows the layer structure starting from the base material:
  
  BULLET::::- Deformed boundary layer,  1 µm
  
  BULLET::::- Reaction layer, 1–10 nm
  
  BULLET::::- Sorption layer, 1–10 nm
  
  BULLET::::- Contamination layer,  1 µm
   The abandoned buildings were not only attractive to Coalition forces, but also to homeless Iraqis. Among these were individuals who had lost their homes in the conflict, but most were urban poor who had been homeless or lived in slums before the war and saw moving into the abandoned houses as a sizable increase in their standard of living. They felt that since they were not Ba'athist, they had as much right to the vacated houses as the Coalition authorities. There continue to be some five thousand of these Iraqis living in the Green Zone.
   For example, if the lost property is found by a tenant inside the walls of his leasehold, or by an employee embedded within the soil of an estate owned by his employer, the landowner (as employer or landlord) of the property where it was found usually has a superior claim of right over that of the finder. However, this is not always the case, as a long-term tenant who finds lost property within the leased area of his leasehold may have a superior claim over that of his landlord (especially if the landlord has never been to the property). While employers usually have a superior claim over lost property found by their employees, exceptions to this exist as well, as modern law sometimes grants the employee superior claim if turning over lost property to his employer is not part of his job description (such as if the employee is an interior decorator).
  
presuppositions: All dust is mostly dead skin. Dust is mostly dead skin.
corrections: Only household dust is mostly dead skin. House dust is mostly dead skin, there is plenty of other stuff in the air that can settle as dust.
raw_presuppositions: All dust is mostly dead skin. Dust is mostly dead skin.
raw_corrections: Only household dust is mostly dead skin. House dust is mostly dead skin, there is plenty of other stuff in the air that can settle as dust.