Analysis of air quality in the museum environment: four case studies in the city of Turin

Author: Mastrippolito C.; Typology:Degree dissertation

Licence: CreativeCommons CC BY-NC-ND 3.0 ; Year: 2007; Language: italiano

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Subject of this thesis is the testing of methods for the analysis of air quality in a museum enviroment. For this purpose four museumswere selected, located in the center of Turin: the Museum of Ancient Art in Palazzo Madama, the Egyptian Museum, National Museum of Cinema and the Art Gallery of the Academy of Fine Arts
In all museums analyses were conducted on airborne pollutants and the measurement of temperature and humidity conditions. The first part of the analysis was conducted by exposure of passive samplers for the determination of 4 of the most common gaseous pollutants: nitrogen dioxide (NO2), sulfur dioxide (SO2), ozone (O3), formaldehyde (HCHO ).
It has been performed sampling of atmospheric particles and it has been determined the concentration of dust at the time of sampling. On particles collected ​​colorimetric measurements, SEM-EDX microscopy and mass spectrometry coupled with gas chromatography (GC-MS) were made.
The values ​​obtained have been compared with the regulatory concentration limits of pollutants for the conservation of cultural heritage in museums. The analysis of the results shows that the concentrations of SO2 seemingly are within normal limits in all cases analyzed, unlike the concentration of NO2 which always seems to widely exceed the legal limit. The ozone distribution is more diverse, it would seem that the limit set by law is not exceeded in closer environments, where the air flow is less. An opposite situation appears for the concentration of formaldehyde, which is much higher in poorly ventilated areas.
The concentration of atmospheric particulate exceeds limits of attention in two museums, but the samples are too small numerically to speculate on the actual amount of airborne dust


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