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Algal and lichen growth following chemical stone cleaning

By: Language: English Series: Journal of Architectural Conservation ; 4(3) November 1998, 48-58(11)Publication details: 1998Subject(s): Summary: Discusses the results of a study into the growth of algae and lichens on samples of chemically-cleaned sandstones over a period of five years, which indicated that phosphate-bearing chemical cleaning methods should be used with caution on porous stone types in situationss where biological growths could cause problems.

Discusses the results of a study into the growth of algae and lichens on samples of chemically-cleaned sandstones over a period of five years, which indicated that phosphate-bearing chemical cleaning methods should be used with caution on porous stone types in situationss where biological growths could cause problems.