Polveri, salute e conservazione del patrimonio culturale: il caso di studio del MANN di Napoli

Air quality inside buildings is a measure of inner environment healthiness and comfort of the occu-pants. It is influenced by the presence of suspended particles, gas and contaminants. Typically, dust can reach culture sites by means of visitors, deposited on shoes and clothing, or through ventilation systems. Environmental and microclimatic parameters relating to the presence of dust in places of culture have to be evaluated in relation to comfort and health of people, but also in relation to the conservation of heritage materials. As part of this study, it was carried out a dust monitoring of the Tyrannicides hall, an exhibition space for stone statues in the National Archaeological Museum of Naples (MANN). On the statues in the hall have been analyzed localized chromatic alterations due to dust. The monitoring made it possible to verify quantity and type of dust in the environment. The effects and implications of an innovative technological strategy for the conservation of cultural heritage were also evaluated.