Accession Number : ADA311442

Title :   A Tri-Service Workshop on Bioavailability of Organic Contaminants in Soils and Sediments, Held in Monterey, California on 9-12 April 1995.

Descriptive Note : Final rept. 1 Mar 95-28 Feb 96,

Corporate Author : RUTGERS - THE STATE UNIV PISCATAWAY NJ COLL OF ENGINEERING

Personal Author(s) : Kosson, David S.

PDF Url : ADA311442

Report Date : 12 APR 1995

Pagination or Media Count : 40

Abstract : Bioavailability (the availability to biota) of organic contaminants is a critical issue for DOD installation restoration programs. Reduced availability of contaminants to biodegrading microbial populations frequently is a rate limiting problem in site cleanup of soils, groundwater, and freshwater and marine sediments. Contaminants may interact with soil and sediment particles to create complex residues which are protected from attack by microbial enzymes. Chemical solubility and sorption to surfaces of clay or colloidal organic matter may also alter the availability of contaminants to microorganisms. Mass transfer limitations (e.g., pore diffusion) may limit the rate of biodegradation and hence bioavailability. Slow leaching of contaminants from soils has been a problem in site which have been remediated. Furthermore, physical characteristics of the soil or sediment system may limit transport of bacteria with biodegradation capabilities to the contaminant sites within the porous media.

Descriptors :   *GROUND WATER, *WATER POLLUTION, *ORGANIC MATERIALS, *CONTAMINANTS, *ENVIRONMENTAL MANAGEMENT, *SOIL POLLUTION, *BIODEGRADATION, *SEDIMENTS, CHEMICALS, PHYSICAL PROPERTIES, BACTERIA, ENZYMES, ATTACK, FRESH WATER, AVAILABILITY, SOILS, PARTICLES, LIMITATIONS, MASS TRANSFER, JOINT MILITARY ACTIVITIES, TRANSPORT, CLAY, ANIMALS, CLEANING, INSTALLATION RESTORATION, COLLOIDS, SORPTION, OCEAN BOTTOM, LEACHING, WORKSHOPS, RESIDUES, POROUS MATERIALS, PLANTS(BOTANY), MICROORGANISMS.

Subject Categories : Organic Chemistry
      Hydrology, Limnology and Potamology
      Soil Mechanics
      Solid Wastes Pollution and Control
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE