The significance of interactions of humic substances and organisms in the environment

Conference · Thu Dec 31 04:00:00 EST 1992

OSTI ID:10147033

McCarthy, J F; Strong-Gunderson, J; Palumbo, A V

The diverse roles of humic substances in biological processes, and differences in the status of our understanding of these processes, is illustrated by examining two interactions. A significant body of literature elucidating the significance of natural organic matter (NOM) on the bioaccumulation of hydrophobic organic contaminants (HOC) by aquatic organisms is consistent with a general conclusion that HOC associated with NOM is not available for uptake by fish or aquatic invertebrates. In contrast to this relatively well-understood process, very little is known about the role of NOM in the ecology and nutrient dynamics of microbial communities in very deep subsurface environments.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10147033
• Report Number(s): CONF-9209335--1; ON: DE93011861
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220
540320
560300
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANTHRACENE
AQUATIC ECOSYSTEMS
AVAILABILITY
BENZOPYRENE
CHEMICALS METABOLISM AND TOXICOLOGY
CHEMICALS MONITORING AND TRANSPORT
DIFFERENTIAL EQUATIONS
EXPOSURE CHAMBERS
HUMIC ACIDS
HUMUS
KINETICS
ORGANIC MATTER
UNDERGROUND
UPTAKE