Biocide Residues as a Hazard in Historic Buildings

Autor:	D. Watt, A. Matthews, N. Garrington, B. Cope
Rok vydání:	1995
Předmět:	Biocide Sodium pentachlorophenate Engineering Gypsum Waste management business.industry Building and Construction Conservation Masonry engineering.material Pentachlorophenol chemistry.chemical_compound chemistry Health hazard business Brickwork
Zdroj:	Journal of Architectural Conservation. 1:36-44
ISSN:	2326-6384 1355-6207
DOI:	10.1080/13556207.1995.10785134
Popis:	Recent survey work at Melton Constable Hall in Norfolk has revealed the presence of fibrous crystals on the walls of some rooms. Scrapings of loose material taken from these walls have been subjected to chemical analysis and found to consist of the expected gypsum, together with needle-like crystals of the biocide pentachlorophenol. The presence of the latter was established by two independent instrumental techniques.Pentachlorophenol and its derivative sodium pentachlorophenate are compounds that were formerly very widely used as preservatives for timber, masonry, plaster and brickwork. They are extremely toxic in their own respect and may contain traces of the very much more dangerous dioxins.It is considered that pentachlorophenol and related materials represent a serious health hazard to conservators and others who might come into contact with the residues from past biocidal treatments of structures, and that this hazard should be drawn to the attention of workers in the field as a matter of c...
Databáze:	OpenAIRE
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