The graphic collections (prints, drawings, watercolors, books, codices, photographs, papers etc..) preserved in museums, libraries and archives, are subject to aggression by specific groups of biological agents. The interdisciplinary research project that we propose includes an integrated system of monitoring of both biological contaminants in the air, dust, and on the surfaces of cultural artifacts and microclimatic conditions. This methodological approach allows the definition of predictive models of biological risk and the assessment of the causes of degradation, helping to identify patterns of preventive conservation strategies for graphic patrimony and of health of operators and visitors. Monitoring of biological pollutants will be carried out analyzing: - Bioaerosol: active (colony forming units/m3) and passive (IMA, Index of Microbial Air contamination) methods; - Air-borne particles: with a laser particle counter (information on the different size and concentration of biological and not biological particles); - Spore both viable and non-viable: a spore trap is used for the direct detection of microbial spores at the microscope and for the evaluation of the temporal distribution; - Surface of cultural artifacts, enclosures and furnishings: carried out in a non-destructive and non-invasive way using nitrocellulose membrane filters (determination of MB-Microbial Build-up and HMF-Hourly Microbial Fall-out); - Surface-borne allergens: are collected using a vacuum cleaner equipped with MITEST filters (immunoenzymatic assays). - Identification of biological contaminants: analysis by cultural techniques, direct counting through a microscope, immunological methods, molecular biology methods. The knowledge of the microclimate conditions of indoor conservation of cultural heritage is important to know the possible risk of colonization and development of biological agents. The most important indoor physical parameters are: temperature and relative humidity of air and surfaces, light, air movements (speed and direction); these parameters may be influenced by the presence of operators and visitors. Monitoring of indoor physical parameters will be carried out with the approach multi-physics by Computational Fluid Dynamics (CFD) for transient simulations and the combination with experimental data, applied to three dimensional models of the studied environments. CFD application plays an important role in the prediction of damage and risk and it is useful to understand the efficiency, adequacy and reliability of the ventilation and illumination system, maintenance criteria, providing important suggestions for the air quality control and energy saving. The use of numerical simulation methods for the cultural heritage is of increasing importance for the analysis, conservation and restoration of works of art. The application and validation of this integrated system will allow the definition of biological and microclimate standards for the preventive conservation of cultural heritage, and the protection of the health of operators and visitors.

Preventive conservation of graphic collections: an integrated system of biological and microclimatic monitoring / C., Pasquarella; R., Albertini; C., Balocco; Maggi, Oriana; Moroni, Catia; G., Pasquariello; Tarsitani, Gianfranco. - STAMPA. - III:(2011), pp. 321-326. (Intervento presentato al convegno 5th International Congress "Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin" tenutosi a Istambul, Turkey nel 22-25 novembre 2011).

Preventive conservation of graphic collections: an integrated system of biological and microclimatic monitoring

MAGGI, Oriana;MORONI, Catia;TARSITANI, Gianfranco
2011

Abstract

The graphic collections (prints, drawings, watercolors, books, codices, photographs, papers etc..) preserved in museums, libraries and archives, are subject to aggression by specific groups of biological agents. The interdisciplinary research project that we propose includes an integrated system of monitoring of both biological contaminants in the air, dust, and on the surfaces of cultural artifacts and microclimatic conditions. This methodological approach allows the definition of predictive models of biological risk and the assessment of the causes of degradation, helping to identify patterns of preventive conservation strategies for graphic patrimony and of health of operators and visitors. Monitoring of biological pollutants will be carried out analyzing: - Bioaerosol: active (colony forming units/m3) and passive (IMA, Index of Microbial Air contamination) methods; - Air-borne particles: with a laser particle counter (information on the different size and concentration of biological and not biological particles); - Spore both viable and non-viable: a spore trap is used for the direct detection of microbial spores at the microscope and for the evaluation of the temporal distribution; - Surface of cultural artifacts, enclosures and furnishings: carried out in a non-destructive and non-invasive way using nitrocellulose membrane filters (determination of MB-Microbial Build-up and HMF-Hourly Microbial Fall-out); - Surface-borne allergens: are collected using a vacuum cleaner equipped with MITEST filters (immunoenzymatic assays). - Identification of biological contaminants: analysis by cultural techniques, direct counting through a microscope, immunological methods, molecular biology methods. The knowledge of the microclimate conditions of indoor conservation of cultural heritage is important to know the possible risk of colonization and development of biological agents. The most important indoor physical parameters are: temperature and relative humidity of air and surfaces, light, air movements (speed and direction); these parameters may be influenced by the presence of operators and visitors. Monitoring of indoor physical parameters will be carried out with the approach multi-physics by Computational Fluid Dynamics (CFD) for transient simulations and the combination with experimental data, applied to three dimensional models of the studied environments. CFD application plays an important role in the prediction of damage and risk and it is useful to understand the efficiency, adequacy and reliability of the ventilation and illumination system, maintenance criteria, providing important suggestions for the air quality control and energy saving. The use of numerical simulation methods for the cultural heritage is of increasing importance for the analysis, conservation and restoration of works of art. The application and validation of this integrated system will allow the definition of biological and microclimate standards for the preventive conservation of cultural heritage, and the protection of the health of operators and visitors.
2011
5th International Congress "Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin"
risk; graphic collections; degradation; dust; air; biological contaminant
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Preventive conservation of graphic collections: an integrated system of biological and microclimatic monitoring / C., Pasquarella; R., Albertini; C., Balocco; Maggi, Oriana; Moroni, Catia; G., Pasquariello; Tarsitani, Gianfranco. - STAMPA. - III:(2011), pp. 321-326. (Intervento presentato al convegno 5th International Congress "Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin" tenutosi a Istambul, Turkey nel 22-25 novembre 2011).
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/382794
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact