Počet záznamů: 1
Carbon air pollution reflected in deposits on chosen building materials of Prague Castle
- 1.0372368 - ÚSMH 2012 RIV NL eng J - Článek v odborném periodiku
Sýkorová, Ivana - Havelcová, Martina - Zeman, Antonín - Trejtnarová, Hana
Carbon air pollution reflected in deposits on chosen building materials of Prague Castle.
Science of the Total Environment. Roč. 409, č. 21 (2011), s. 4606-4611. ISSN 0048-9697. E-ISSN 1879-1026
Grant CEP: GA AV ČR IAA300460804
Výzkumný záměr: CEZ:AV0Z30460519; CEZ:AV0Z20710524
Klíčová slova: historical building materials * air pollution * carbonaceous matter
Kód oboru RIV: DD - Geochemie
Impakt faktor: 3.286, rok: 2011
Web výsledku:
http://www.sciencedirect.com/science/article/pii/S0048969711007431DOI: https://doi.org/10.1016/j.scitotenv.2011.07.025
Thin black surface layers or black coloured gypsum crusts can be observed on stones of many buildings and sculptures around the world. The black weathered stone and mortar surface from selected sections of the Prague Castle were studied by microscopic methods, GC/MS and pyrolysis-GC/MS analysis. Microscopically, we found an authigenic gypsum formation with an outer layer of an admixture of fine grains of quartz, clay minerals, thermally altered clay minerals, fly ash, and carbonaceous particles of natural and anthropogenic origin particularly chars, cokes, soots. Noncarbonate C content ranged between 0.8% and 4.3%. Phtalates dominated in extracts from the samples and benzonitrile had the greatest abundance in the pyrolysis products. The identified organic particles and compounds are known to result from human activities. (C) 2011 Elsevier B.V. All rights reserved.
Trvalý link: http://hdl.handle.net/11104/0205702
Počet záznamů: 1