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Data degradation
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====Paper media==== [[Paper data storage|Paper media]], such as [[punched cards]] and [[punched tape]], may literally [[Decomposition|rot]]. [[Mylar]] punched tape is another approach that does not rely on electromagnetic stability. Degradation of [[books]] and [[Printing_and_writing_paper|printing paper]] is primarily driven by [[acid hydrolysis]] of [[glycosidic bonds]] within the [[cellulose]] molecule as well as by [[oxidation]];<ref name="Malachowska_2021"/> degradation of paper is accelerated by high [[relative humidity]], high temperature, as well as by exposure to acids, oxygen, light, and various pollutants, including various [[volatile organic compounds]] and [[nitrogen dioxide]].<ref name="Menart_2011"/>
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