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RECORD NUMBER: 50 OF 8051

Main Title A guide for assessing biodegradation and source identification of organic ground water contaminants using Compound Specific Isotope Analysis (CSIA) [electronic resource] /
Author D. Hunkeler; R. U. Meckenstock; B. S. Lollar; T. C. Schmidt; J. T. Wilson
CORP Author Neuchatel Univ. (Switzerland).; Toronto Univ. (Ontario).; National Risk Management Research Lab., Ada, OK.
Publisher National Risk Management Research Laboratory, Office of Research and Development U.S. Environmental Protection Agency,
Place Published Ada, OK
Year Published 2008
Report Number EPA/600/R-08-148
Stock Number PB2009-105967
OCLC Number 303579401
Subjects Hazardous organic compounds; Ground water; Hazardous waste sites; Risk management; Contaminants; Biodegradation; Source identification; Monitored Natural Attenuation; Compound Specific Isotope Analysis (CSIA); Monitored Natural Attenuation (MNA)
Subject Added Ent Biodegradation--Analysis.; Groundwater--Analysis.
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P1002VAI.txt
http://www.epa.gov/nrmrl/publications.html
Holdings
Library   Call Number Additional Info Location Date Modified
EJBD POD Internet only Headquarters Library/Washington,DC 02/16/2009
NTIS PB2009-105967 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 05/12/2010
Collation [82] p. : digital file, PDF
Abstract Managing the risk associated with hazardous organic compounds in ground water at hazardous waste sites often requires detailed knowledge of the extent of degradation of the organic contaminants at the site. An evaluation of the contribution of natural biodegradation or abiotic transformation processes in ground water is usually crucial to the selection of Monitored Natural Attenuation (MNA) as a remedy for a site. Documentation that the organic contaminant is actually being degraded is important for performance monitoring of MNA, performance monitoring of active in situ bioremediation, and performance monitoring of many other active remedial technologies. The traditional approach of monitoring a reduction in the concentrations of contaminants at sites often does not offer compelling documentation that the contaminants are actually being degraded. When data on concentrations are the only data available, it is difficult or impossible to exclude the possibility that the reduction in contaminant concentrations are caused by some other process such as dilution or dispersion, or that the monitoring wells failed to adequately sample the plume of contaminated ground water. Stable isotope analyses can provide unequivocal documentation that biodegradation or abiotic transformation processes actually destroyed the contaminant. When organic contaminants are degraded in the environment, the ratio of stable isotopes will often change, and the extent of degradation can be recognized and predicted from the change in the ratio of stable isotopes. Recent advances in analytical chemistry make it possible to perform Compound Specific Isotope Analysis (CSIA) on dissolved organic contaminants such as chlorinated solvents, aromatic petroleum hydrocarbons, and fuel oxygenates, at concentrations in water that are near their regulatory standards. At many hazardous waste sites, progress toward cleanup of contamination in ground water depends on successful identification of the true source of the contamination.
Notes "EPA/600/R-08/148" "December 2008." Title taken from title screen (viewed February 12, 2009).
Supplementary Notes Prepared in cooperation with Toronto Univ. (Ontario). Sponsored by National Risk Management Research Lab., Ada, OK.
Availability Notes Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
Access Notes Mode of access: World Wide Web.; System requirements: Adobe Acrobat Reader.
Author Added Ent
Hunkeler, Daniel.;
Meckenstock, Rainer U.;
Lollar, B. S.;
Schmidt, Torsten.;
Wilson, John T.
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Research and Development.; National Risk Management Research Laboratory (U.S.). Bioremediation Research Team.
PUB Date Free Form 2008
Category Codes 48G; 68; 68D; 99D
NTIS Prices PC A05/MF A05
BIB Level m
Medium electronic resource
Control Number 010501910
OCLC Time Stamp 20090212141050
Cataloging Source OCLC/T
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 01717nam 2200397Ia 45020


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