Abstract
Environmental conditions of the storage and exhibition room in the University of Tsukuba Library were researched. Light, gaseous pollutants and pest survey were focused. Strength of light levels was recalculated based on schedule plan of annual of library. Ammonia, formaldehyde, acetic acid acetaldehyde and so on were measured using Gas-Tech; it's cheaper and convenience method. It is useful tool in museum as it is possible to catch the level of air pollutants in situ. 20 pest traps were set, and the pest was identified after 1month. As result, a few flattened booklouse and a kind of beetles were caught. Most of insect was identified come from outside of library. It is necessary to monitoring continuous on regularly works in library. Even non-expert stuff be able to operate these research. These data is very efficient to manage the environmental condition of storage and exhibition room in the long term plan in economical advantage. A sequence of environmental research also is one part of risk management of library.