|Title||Corrosion on cultural heritage buildings in Italy: A role for ozone?|
|Publication Type||Articolo su Rivista peer-reviewed|
|Year of Publication||2009|
|Authors||Screpanti, A., and De Marco Alessandra|
|Keywords||air monitoring, air pollutant, Air Pollutants, Air pollution, article, atmospheric pollution, building, Buildings, Calcium Carbonate, Cities, city, climate, climate effect, concentration (composition), Concentration (process), Concentration of, Construction Materials, Copper, Corrosion, Corrosion levels, Corrosion risks, cultural anthropology, CULTURAL HERITAGE, Cultural heritages, Culture, Environmental monitoring, Ground-level ozones, Health, Health risks, Heritage buildings, historic building, human, Human healths, Italy, Limestone, monument, Multi-assess approach, Oxidants, Ozone, Ozone levels, Photochemical, rural area, Southern Europe, troposphere, Tropospheric ozone, urban area, Urban locations|
Because of climatic reasons and of reduced concentrations of SO2, ground-level ozone (O3) is one of the main air pollutants in Southern Europe. Ozone levels are very high both in rural and urban locations. In the cities, O3 can affect human health and materials. Regarding materials, most relevant is the exposure to pollutants of cultural heritage buildings. In particular, monuments registered on UNESCO's list of the world heritage require special monitoring. In Italy 34% and 97% of the territory is exposed to corrosion risk higher than the tolerable level for limestone and copper, respectively. The tolerable corrosion level for limestone and copper was also exceeded in the central area of Milan. In this area the tolerable O3 concentration for copper was calculated. These concentrations (ranging between 30 and 40 μg/m3) cannot be exceeded at unchanged concentration of other pollutants to maintain corrosion levels below the tolerable ones. © 2008 Elsevier Ltd. All rights reserved.
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