1 / 13

Call for Data

Call for Data “Inventory and condition of stock of materials at UNESCO World Cultural Heritage sites, 2015-2017”. Status Report. Johan Tidblad & Pasquale Spezzano. 3 rd Joint Session of the SB to EMEP and the WGE Geneva, Switzerland 11 - 15 September 2017. Call for data : h istory.

clio-moreno
Télécharger la présentation

Call for Data

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Call for Data “Inventory and condition of stock of materials at UNESCO World Cultural Heritage sites, 2015-2017”. Status Report. Johan Tidblad & Pasquale Spezzano 3rd Joint Session of the SB to EMEP and the WGE Geneva, Switzerland 11 - 15 September 2017

  2. Call for data: history • Agreement on launching the call by the Programme Task Force in April 2015 (31stmeeting in Kjeller, Norway); • Adopted during the first joint session of the Steering Body to the EMEP and WGE (Geneva, 14-18 September 2015); • Launched on 22 October 2015 via e-mail by the Convention Secretariat; • The deadline for the submission of data postponed to the 30 June 2017 (32nd meeting Programme Task Force, Rome, Italy)

  3. Call for data: aims • To disseminate the experience gained during the “Pilot study on inventory and condition of stock of materials at risk at UNESCO cultural heritage sites”; • To retrieve information on UNESCO cultural heritage sites for the assessment of the stock of materials; • To identify UNESCO sites at risk in individual countries; • To assess the damage to selected materials of the identified sites and to evaluate damage cost; • To involve new countries in the activities of ICP Materials.

  4. ICP Materials web site A page dedicated to the Call for Data has been added to the ICP Materials website, where all documents and some examples of the reporting template are available for downloading.

  5. Call for data Six Countries are participating in the Call for Data:

  6. Cultural heritage objects selected for the Call for Data • The Cathedral of Saint Domnius, Split, Croatia • Aachen Cathedral, Aachen, Germany • Speyer Cathedral, Speyer, Germany • Würzburg Residence, Würzburg, Germany • Porta Nigra, Trier, Germany • Town Hall of Bremen, Bremen, Germany • Wartburg Castle, Eisenach, Germany • Hercules-Monument, Kassel, Germany • Lorsch Abbey, Lorsch, Germany • The Colosseum, Rome, Italy • The Tower of Pisa, Pisa, Italy • Palazzo Madama, Turin, Italy • Ghirlandina Tower, Modena, Italy • Hydroparken, Notodden, Norway • Nidarosdomen, Trondheim, Norway • Drottningholm Palace Theatre, Ekerö, Stockholm, Sweden • Nederluleå church in Gammelstad church town, Luleå, Sweden • Hanseatic Town of Visby, Gotland, Sweden • Cathedral of the Abbey of St. Gall, St Gall, Switzerland • Bern Minster, Bern, Switzerland

  7. Some general remarks • Not all the UNESCO sites, and not all individual cultural heritage object are suitable to meet the objectives of the study (materials, localization in non-polluted areas, etc,); • The characterization of a specific cultural heritage object in terms of total external surface, the classification of the different building materials and the estimate of the amount of each material exposed to air pollution is a very time-consuming task; • Simplifications are needed in calculating the surface of complex architectural figures (statues, bas-reliefs, columns, capitals, balustrades, etc.)

  8. Examples of complex architectural figures Bern Minster, Switzerland Palazzo Madama, Turin, Italy Town Hall of Bremen, Germany

  9. Materials constituting the artifacts: summary • Total area: ~ 220,000 m2 (equivalent to 31 football pitches or half of the Vatican City area); • Natural stones (mainly sandstone and limestone but also talc-schist, tufa, slate and other ornamental stones): ~ 63 %; • Artificial stones (ceramic such as bricks and “terracotta” tiles, plasters, mortars, and cement-based concrete): ~ 16 %; • Waterproof materials based on asphalt, bitumen or tar: ~ 5 %; • Painted surfaces (not paintings inside the buildings) : ~ 4 %; • Copper (a constituent element of the roof in 8 cultural objects): ~ 5 %; • Glass (windows containing glass and stained glass windows): ~ 5 %.

  10. The environment around the artifacts: summary • SO2: from 1 to 7 μg/m3 • NO2: from 5 to 65 μg/m3 • O3: from 19 to 96 μg/m3 • PM10: from 8 to 40 μg/m3 • Temperature: from 4.5 to 19.1 °C • Relative humidity: from 56 to 83.5 % • Amount of precipitation: from 431.4 to 1343 mm per year • pH of rain: few data, usually between 5.0 and 5.2 (All data expressed as annual average)

  11. Collected data: conclusions • good characterization of a number of cultural heritage objects in terms of total external surface, building materials and amount of each material exposed to air pollution; • wide range of materials and environmental conditions.

  12. Next steps • assessment of expected damage of the materials constituting the artifacts due to air pollution by using dose-response functions established by ICP Materials (2018); • assessment of cost of damage caused by deterioration of the materials constituting the artifacts due to air pollution (2019). • in-depth assessments on the individual monuments taken into account by the Call for Data will be supplemented with updated corrosion maps of the UNECE region to better understand the distribution of UNESCO sites at risk.

  13. Final Message: Countries wishing to participate in the Call are welcome ... Thank you for your attention! Any questions?

More Related