atmosphere Review Indoor Air Quality in Museum Display Cases: Volatile Emissions, Materials Contributions, Impacts Oscar Chiantore * and Tommaso Poli Department of Chemistry, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy;
[email protected] * Correspondence:
[email protected] Abstract: The control of air quality in museum showcases is a growing issue for the conservation of the displayed artefacts. Inside an airtight showcase, volatile substances may rapidly concentrate and favor or directly cause the degradation or other unwanted phenomena on the objects. The role of materials used in the construction of museum display cases as a source of pollutants and volatile compounds dangerous for the cultural heritage integrity is here reviewed with an illustration of consequences and critical damages. Ways of assessing the suitability of materials used either in the construction or in use of the display cases are also discussed altogether with an overview of the possible choices for monitoring the air quality and limiting the concentration of volatile compounds in their interior. Keywords: display cases; indoor air quality; volatile organic compounds; pollutants; emissions; preventive conservation; heritage science Citation: Chiantore, O.; Poli, T. 1. Introduction Indoor Air Quality in Museum The quality of air in the museum environment is of primary importance in determining Display Cases: Volatile Emissions, conditions appropriate for the collections conservation. It is widely acknowledged that Materials Contributions, Impacts. in museum, galleries, and archives, the building materials, furnishings, and technical Atmosphere 2021, 12, 364. https:// equipment can act as important sources of chemical emissions capable of interacting with doi.org/10.3390/atmos12030364 the works of art inside [1,2].