16611
Accession Number
8478
Title Of Article Chaper
Growth control of algae and cyanohacteria on historical monuments by a mobile UV unit (MUVU)
Title Of Journal Book
Studies in conservation
Volume
25
Issue
2
Pages
71-77
Language Of Text
English
Language Of Summary
French; German
Literature Type
Serial
Literature Level
Analytic
Abstract
Algal and cyanobacterial growth occurring on the plaster-covered interior walls of the church of St. Stephanus at Pilsum (northern Germany) has been studied. A Mobile Ultra Violet Unit (MUVU) has been successfully applied to the church walls in order to control growth of photo-synthetic organisms. The killing effect of the UV-light on the flora has been demonstrated by the following methods: 1) infrared photography, 2) quantitative chlorophyll determinations, 3) transmitted light microscopy, 4) scanning electron microscopy and 5) plate counts. It was demonstrated that the MUVU method is efficient and cheap. The construction and operation of the MUVU is easy. Assessment of the efficiency of the process can be carried out without complicated chemical or biological analyses, by using IR-photography.
Keywords
Electron, microscopy scanning; Photography, infrared; Algae, algicide; Stone, bactericide; Disinfection, ultraviolet; Mural painting, biodeterioration ICCROM
pub_id
16611