Use of biogenic and abiotic elemental selenium nanospheres to sequester elemental mercury released from mercury contaminated museum specimens

Mercuric chloride solutions have historically been used as pesticides to prevent bacterial, fungal and insect degradation of herbarium specimens. The University of Manchester museum herbarium contains over a million specimens from numerous collections, many preserved using HgCl 2 and its transformat...

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Veröffentlicht in:	Journal of hazardous materials 2011-05, Vol.189 (3), p.660-669
Hauptverfasser:	Fellowes, J.W., Pattrick, R.A.D., Green, D.I., Dent, A., Lloyd, J.R., Pearce, C.I.
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Applied sciences Atmospheric pollution Bacteria Botanical collections Environmental Monitoring - methods Eucalyptus - metabolism Exact sciences and technology fungi Geobacter - metabolism Geobacter sulfurreducens herbaria insects mercuric chloride Mercury Mercury - chemistry Mercury - toxicity Mercury contamination Metal Nanoparticles - chemistry Museums Nanoparticles - chemistry Nanospheres Nanospheres - chemistry Plant Leaves - metabolism Pollution Risk Selenium Selenium - chemistry Selenium nanoparticles Sulfides - chemistry Temperature vapors Vapour X-Ray Diffraction X-ray photoelectron spectroscopy
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Beschreibung
Zusammenfassung:	Mercuric chloride solutions have historically been used as pesticides to prevent bacterial, fungal and insect degradation of herbarium specimens. The University of Manchester museum herbarium contains over a million specimens from numerous collections, many preserved using HgCl 2 and its transformation to H g v 0 represents a health risk to herbarium staff. Elevated mercury concentrations in work areas (∼1.7 μg m −3) are below advised safe levels (
ISSN:	0304-3894 1873-3336
DOI:	10.1016/j.jhazmat.2011.01.079