Research training for understanding the fate of environmental pollutants. (FY91 aasert). Annual report, 1 June 1993-31 May 1994
This proposal requests funds to further involve graduate students in environmental research sponsored by the United States Air Force Office of Scientific Research (AFOSR). The participants will learn to utilize a combination of laboratory and field approaches to identifying physical, chemical, genetic, and physiological influences that govern the accumulation and biodegradation of polycyclic aromatic hydrocarbons (PAHs). These and related compounds are among the chemicals whose environmental fate is of concern to the U.S. Air Force and other Department of Defense agencies. The Principal Investigator and colleagues have conducted a prior, independent study that has shown that, despite the presence of PAH metabolizing microorganisms, PAHs persist at a site where freshwater sediments are fed by PAH-contaminated groundwater. Hypotheses to be tested address fundamental mechanisms for the persistence of environmental pollutants, these include: the rate of delivery meets or exceeds the rate of biodegradation; the PAHs are not available to microbial populations due to rapid, short term sorption onto the sediment organic matter, or due to long term (aging) sorption into a spatially remote compartment of the microporous structure of sediment organic matter, or due to complexation reactions with dissolved organic carbon, or due to the physical arrangement of the sediment matrix which prevents contact between PAHs and microorganisms.
- Research Organization:
- New York State Coll. of Agriculture and Life Sciences, Ithaca, NY (United States). Div. of Biological Sciences
- OSTI ID:
- 6873475
- Report Number(s):
- AD-A-284164/1/XAB; CNN: F49620-93-1-0414
- Country of Publication:
- United States
- Language:
- English
Similar Records
Geochemical, genetic and physiological control of pollutant biodegradation. Annual technical report No. 2, 30 March 1993-29 March 1994
Molecular probes and bioluminescent reporters in ecological optimization of biodegradation. (FY 91 aasert). Annual report, 1 June 1992-31 May 1993
Related Subjects
POLYCYCLIC AROMATIC HYDROCARBONS
BIODEGRADATION
ENVIRONMENTAL TRANSPORT
WATER POLLUTION
PROGRESS REPORT
AROMATICS
CHEMICAL REACTIONS
DECOMPOSITION
DOCUMENT TYPES
HYDROCARBONS
MASS TRANSFER
ORGANIC COMPOUNDS
POLLUTION
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)