INFS 423 Preservation of Information Resources Lecture 10 - - PowerPoint PPT Presentation

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INFS 423 Preservation of Information Resources Lecture 10 - - PowerPoint PPT Presentation

INFS 423 Preservation of Information Resources Lecture 10 Deterioration Caused by Disasters Lecturer: Prof. Harry Akussah & Mr. Michael Allotey , Contact Information: mallotey@ug.edu.gh, hakussah@ug.edu.gh College of Education School


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College of Education School of Information and Communication Studies Department of Information Studies

2018/2019

INFS 423 Preservation of Information Resources

Lecture 10 – Deterioration Caused by Disasters

Lecturer: Prof. Harry Akussah & Mr. Michael Allotey, Contact Information: mallotey@ug.edu.gh, hakussah@ug.edu.gh

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Lecture Overview

In this lecture, I will introduce you to disasters, bringing out those that

  • ccur naturally and those that are induced by the activities of man.

The lecture also provides you with knowledge about disasters that are universal and can occur anywhere in the world and those that are confined to specific geographical regions. We will also discuss information disasters, for example: flood and fire. We will look at what their causes are and the adverse consequence they come with.

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Lecture Outline

The key topics to be covered in the lecture are as follows:

  • Topic One: Defining Disaster
  • Topic Two: Types of Disasters
  • Topic Three: Information Disasters

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Reading List

  • Akussah, H. (2011). Preservation of Documents. Department of

Information Studies, Legon, NAB Superior Services.

  • Gorman, G. E., & Shep, S. J. (2006). Preservation management

for libraries, archives and museums. London: Facet Pub.

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DEFINING DISASTER

Topic One

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What is a Disaster?

  • A disaster can be defined as the tragedy of

a natural or human-made hazard that negatively affects society or environment.

  • It can also be defined as any occurrence

which comes with suffering to mankind or results in the disruption of the normal way

  • f doing things, whether natural or

artificial, predictable or otherwise.

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What is a Disaster?

  • Disasters therefore have the characteristics of being

sudden, coming with significant destruction, adverse consequences and suffering.

  • In contemporary academia, disasters are seen as the

consequence of inappropriately managed risks or hazards.

  • Disasters are the products of the interplay of hazards and
  • vulnerability. Hazards that strike in areas with low

vulnerability may not result in a disaster, as is the case in uninhabited regions.

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TYPES OF DISASTERS

Topic two

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Types of Disasters

Disasters can be broadly classified into two types:

  • natural disasters
  • artificial disasters.

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Natural Disaster

  • A natural disaster can be defined as the

consequence when a natural hazard affects humans. For example, volcanic eruption or earthquake.

  • It is caused by a natural phenomenon

and it cannot be prevented even though with developments in technology it can be precisely predicted.

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Artificial Disaster

  • Disasters caused by human action, negligence, error,
  • r involving the failure of a system are called human-

made or artificial disasters. That is, they are human caused disasters either through their willful or unintended activities.

  • Willful acts include arson and unintended acts

include overexploitation of vegetation which exposes land to fire.

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Artificial Disaster

  • Artificial or human-made disasters are in turn

categorized as technological or sociological.

  • Technological disasters are the results of failure of

technology, such as engineering failures, transport disasters, or environmental disasters.

  • Sociological disasters have a strong human motive,

such as criminal acts, stampedes, riots, and war.

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Categories of Disasters

Disasters can be categorized into two depending on where they are likely to occur: i.e.

  • universal
  • peculiar disasters.

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Universal Disasters

  • This category can happen anywhere in the world.

Thus, they are universal and their causes are common and can happen at any time.

  • For example, fire outbreaks caused by man and

flooding due to man’s negligence. Most universal disasters are man-made which are as a result of willful attitude or negligence.

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Peculiar Disasters

  • Peculiar or specific disasters are disasters which are

geographical region specific. They are confined to specific geographical areas.

  • Some of the natural occurrences that cause these

peculiar disasters are tectonic activities, climatic factors, topography, etc. Examples of peculiar disasters include earthquakes, landslides, floods, fire, snow cover, terrorism and volcanoes.

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INFORMATION DISASTERS

Topic Three

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Defining Information Disaster

  • An information disaster is a sudden and

unexpected event that results in the loss of documentary materials essential to

  • rganizational operations.
  • An interruption of mission – critical information

service for an unacceptable period of time. (Toigo Jon)

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Defining Information Disaster

  • Any event which results in the sudden removal of

records and documents from accessibility and

  • use. (Alegbeleye)
  • Any incident which threatens human safety and

damages or threatens to damage library’s buildings, collection, equipment and systems. (Eden & Matheus)

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Information Disasters

  • The two most prevalent Information

Disasters in Ghana are:

  • Flood
  • Fire

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Fire Disasters

  • This is one of the most devastating disasters particularly

to libraries and archives because most information resources are highly combustible. For instance, paper burns quickly.

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Causes of Fire

  • Faulty electrical wiring.
  • Leaving heat generating appliances unattended to

such as hot plates.

  • Electrical short circuits.
  • Lightning.
  • Careless smoking habits.
  • Faulty and subserviced equipment such as air-

conditioners.

  • Vandalism.
  • Spontaneous ignition.

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Damages Caused by Fire

Apart from total loss, fire can cause the following damages:

  • It generates heat which can be dangerous to documentary

materials.

  • Soot generated can stain documents.
  • Smoke generated is dangerous to custodians and patrons.
  • Discolouration of documents – Paper could turn brownish.
  • Fire attracts water which is equally dangerous to

documentary materials – ironically the best way to reduce damage from fire is to put it out using water. Consequently, water damage is caused.

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Prevention of Fire

The following steps can be taken to reduce the threat

  • f fire:
  • Major sources of fire are heating and electrical
  • systems. These should be properly installed and

checked frequently.

  • Hazardous and highly flammable materials such as

chemicals, paints and solvents should be removed from storage areas.

  • If possible, materials should not be stored in attics or
  • basements. Such areas are highly susceptible to fires.

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Prevention of Fire

  • Smoking should be prohibited in records storage areas or

book stacks and restricted only to designated safe areas.

  • Frequent inspection should be made to detect unsafe

conditions.

  • Combustible materials should be stored in areas that will

minimize the hazard if they ignite and portable extinguisher should be located nearby.

  • Information centres should be built with fire proof or non

combustible materials. For instance, the use of metal shelves and doors instead of wooden materials.

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Prevention of Fire

  • All valuable records should be boxed if possible to

serve as a barrier between the fire and documents.

  • Building should be properly designed and
  • constructed. All floors must have emergency exits and

it is imperative that these exit points are clearly marked and not impeded by security measures.

  • Fire fighting equipment's like fire extinguishers, fire

blankets, heat and smoke detectors and automatic fire suppressors should be used.

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Flood

  • Flooding occurs when water forces its way into an

area that it is not expected to be, causing destruction to life and properties.

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Causes of Flood

  • Flood can be caused naturally or artificially.
  • Natural causes basically results from rainstorms –

ripping off roofs .

  • Artificial causes are as a result of leaking taps, worn
  • ut taps and taps not turned off.
  • It can also be caused by overflowing drains, broken

sewage lines, overflowing river banks, hosing, etc.

  • Flooding can also result from other disasters. For

instance, pipe lines can get broken during earthquakes.

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Damages Caused by Floods

Water – 100% relative humidity! – is most damaging to documentary

  • materials. It causes the following:
  • Paper documents absorb water and get swollen.
  • Flood waters cause short circuits, which brings fires, which then

brings more water thereby causing greater damage to documentary materials.

  • Emulsion layer of film-based documents soften and documents get

stuck to each other.

  • Soluble inks and dyes smudge or run, making the documents

difficult to use.

  • Can result in the staining or discolouration of documents.
  • As the relative humidity rises during flooding, micro-biological

infestation can easily set in.

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Prevention of Floods

It is possible to take steps to protect documents from water damage or reduce its effects by taking the following measures:

  • It is important to consider the location. Swampy areas, water

logged areas and areas liable to flooding should be avoided.

  • The building should be surveyed: leaks, soft spots in walls or

the roof, weak pipes, or any other signs of potential or actual water damage must be detected and repaired as soon as possible.

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Prevention of Floods

  • Air conditioners, dehumidifiers or other environmental

equipment should be monitored. These can generate water vapour and, if they break down, can leak and cause damage.

  • Efficient and adequate drainage must be ensured and this

must always flow away from the institution.

  • Basements should be avoided because they are susceptible to

flooding.

  • Shelves and storage equipment must be raised between 6”

and 12” above the ground level.

  • No taps should be allowed in the storage area and all taps

must be turned off by the close of the day.

  • Water detectors or alarms should be installed – these are

special sensitive devices that react in the presence of water.

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Summary

Congratulations! You completed lecture 10. You must be conversant with:

  • the definition of disaster
  • types of disaster
  • categorization of disaster
  • preventable disaster
  • non-preventable disaster
  • the causes of fire outbreak in information centres
  • how devastating fire can be to documentary materials
  • how to prevent fire outbreaks
  • the causes of flood
  • how to prevent flood

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