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
      Inorganic Chemistry
      Physical and Dynamic Oceanography
      Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE