Accession Number : ADA303741
Title : Persistence of White Phosphorus Particles in Sediment,
Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Personal Author(s) : Walsh, Marianne E. ; Collins, Charles M. ; Racine, Charles H.
PDF Url : ADA303741
Report Date : NOV 1995
Pagination or Media Count : 51
Abstract : Remediation of sediments at Eagle River Flats, a salt marsh contaminated with particles of white phosphorus (P4), may require severe alterations of the wetland by dredging, draining or covering. However, some sediments may undergo decontamination naturally in areas that are seasonally exposed to air. To predict the persistence of white phosphorus particles in sediments, a literature review was conducted for the physical and chemical properties of white phosphorus. The persistence of millimeter-size white phosphorus particles was studied by laboratory and field experiments. White phosphorus particles were found to be persistent indefinitely in saturated sediments. In unsaturated sediments, loss was rapid (within 24 hours) at 20 deg C and retarded by low temperatures. jg p2
Descriptors : *PARTICLES, *SEDIMENTS, *WHITE PHOSPHORUS, LOW TEMPERATURE, DECONTAMINATION, EXPOSURE(GENERAL), LITERATURE SURVEYS, AIR, CHEMICAL PROPERTIES, PHYSICAL PROPERTIES, FIELD TESTS, SATURATION, RIVERS, SALTS, WETLANDS, DREDGING, SWAMPS, RETARDATION.
Subject Categories : Geology, Geochemistry and Mineralogy
Physical and Dynamic Oceanography
Hydrology, Limnology and Potamology
Distribution Statement : APPROVED FOR PUBLIC RELEASE