page_title: Conservation and restoration of frescos
section_title: Deterioration of frescoes
hierarchical_section_title: Conservation and restoration of frescos / Deterioration of frescoes
caption_attribution_description: English: Hades abducting Persephone, fresco in the small royal tomb at Vergina, Macedonia, Greece. Français&#160;: Enlèvement de Perséphone par Hadès, fresque de la tombe de Vergina, Grèce.
context_page_description: The conservation and restoration of frescoes is the process of caring for and maintaining frescos, and includes documentation, examination, research, and treatment to insure their long-term viability, when desired.
context_section_description: Frescoes can be found in places of worship such as churches, ancient temples and tombs, as well as private residences and commercial establishments used for public entertainment. It is these environments and their pollutants that interact with the chemicals, both organic and inorganic, utilized to create the frescoes and the pigments used that contribute to their aesthetic and structural deterioration. Additionally, wall paintings such as frescoes depending on the technique used, possess a layered structure consisting of support, ground or paint layer. These constituents of wall paintings undergo deterioration physically, chemically or biologically. Although factors like moisture, salts, and atmospheric pollution have generally been the main contributors to the deterioration of wall paintings in most cases, many in the field believe the growth of biological agencies like fungi and microbial flora is also responsible for decay.
caption: Hades abducting Persephone
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