Lecture Notes: LIS Master Class on Conservation and Preservation of Information Resources
Introduction
Welcome to today’s lecture on an integral aspect of library science—Conservation and Preservation of Information Resources. Today, we will explore the strategies and challenges in maintaining the integrity and prolonging the lifespan of library materials.
Causes of Deterioration of Library Resources
Deterioration refers to the change in the condition of library materials from their original state, primarily due to various destructive factors. Understanding these causes is crucial for developing effective conservation strategies.
Environmental Factors
Light: Exposure to natural and artificial light can significantly damage paper through photochemical reactions, leading to weakened and brittle conditions. Both intensity and duration of light exposure accelerate this deterioration.
- – Heat: High temperatures, especially when combined with low humidity, dehydrate cellulose fibers, making paper brittle. Conversely, high temperatures with high humidity promote mold growth.
- Humidity and Moisture: Excessive moisture can weaken fibers, loosen adhesive bindings, and promote biological growth such as mold, leading to further deterioration.
- –Dust and Dirt: Airborne particles settle on surfaces, attracting moisture and promoting chemical and biological reactions that can physically and chemically damage library materials.
- – Water: Exposure to water, whether from leaks, floods, or humidity, can cause severe physical and biological damage, including mold growth and structural weakening of materials.
Biological Factors
- Microorganisms: Fungi and bacteria can thrive in suitable conditions of humidity and temperature, causing mold growth and cellulose decomposition.
- -Insects: Pests like silverfish, cockroaches, booklice, and termites feed on paper, glue, and other organic components of books, causing physical damage.
- Rodents: Mice and rats can cause extensive damage by chewing through books and other materials.
Chemical Factors
- – Use of acidic materials in paper manufacturing and environmental pollutants like sulphur dioxide and nitrogen oxides contribute to the chemical breakdown of paper fibers, leading to deterioration.
- **Human Factors**
- – Mishandling by users and librarians, such as improper book repairs, rough handling, and defacing, significantly contributes to the deterioration of library resources.
- **Disasters**
- – Natural and man-made disasters like fires, floods, and earthquakes pose severe threats to library collections, as evidenced by incidents such as the fire at the University of Jos Main Library.
Discussion: Preventive Measures and Restoration Techniques
To mitigate these risks, libraries must adopt comprehensive preservation strategies, including environmental controls, proper storage, regular maintenance, and restoration techniques. Training and awareness programs for staff and patrons are equally important to ensure the proper handling and care of library materials.
**Conclusion**
Conservation and preservation are ongoing challenges in library management. By understanding the causes of deterioration and implementing effective preservation strategies, we can ensure that library materials remain available to future generations.
**Next Steps**
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