Record Display for the EPA National Library Catalog

RECORD NUMBER: 46 OF 91

OLS Field Name OLS Field Data
Main Title Identifying sources of subsurface nitrate pollution with stable nitrogen isotopes /
Author Wolterink, Timothy J. ; Williamson, Hugh J. ; Jones, David C. ; Grimshaw, Thomas W. ; Holland, W. F.
Other Authors
Author Title of a Work
Wolterink, Timothy J.
CORP Author Radian Corp., Austin, TX.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available to the public through the National Technical Information Service,
Year Published 1979
Report Number EPA-600/4-79-050; RAD-78-200-155-15; EPA-68-03-2450
Stock Number PB80-102064
OCLC Number 06023773
Subjects Nitrates. ; Groundwater--Pollution--United States. ; Water, Underground--Pollution--United States
Additional Subjects Ground water ; Inorganic nitrates ; Isotopic labeling ; Soil analysis ; Water analysis ; Sources ; Water pollution ; Chemical analysis ; Sampling ; Sites ; Laboratory equipment ; Water pollution detection ; Water pollution sampling
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100T67C.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 600-4-79-050 Headquarters Library/Washington,DC 04/21/2014
EJBD  EPA 600-4-79-050 Headquarters Library/Washington,DC 09/15/2014
EKAM  EPA 600/4-79-050 Region 4 Library/Atlanta,GA 07/08/1994
EKBD  EPA-600/4-79-050 Research Triangle Park Library/RTP, NC 08/29/2003
EMBD  EPA/600/4-79/050 NRMRL/GWERD Library/Ada,OK 09/29/1995
ERAD  EPA 600/4-79-050 Region 9 Library/San Francisco,CA 10/29/2012
ESAD  EPA 600-4-79-050 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-102064 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation xi, 151 p. : ill. ; 28 cm.
Abstract
This report describes the methods, results, conclusions, and recommendations of an investigation of a technique to identify sources of nitrate in ground water. A discussion of the theoretical basis of the technique is also provided. Over 300 soil and ground water samples were collected for this study. The samples are from numerous sites around the United States, representing a variety of environmental conditions. The nitrate in 66 of these samples was separated from other nitrogen species, converted to N2 gas, purified, and analyzed to determine the ratio (15)N/(14)N. These data were combined with the results of analyses performed previously by Jones (1) and Kreitler (2). Standard statistical techniques were used to analyze the observed variations in delta (15)N values, with respect to several nitrate sources and various environmental factors. It was found that nitrates from feedlots, barnyards and septic tanks can be distinguished from natural soil nitrates on the basis of their delta (15)N values. They cannot, however, be distinguished from each other. Environmental factors contributed to the observed variation in delta (15)N values.
Notes
"Radian Corporation." "Ground Water Research Branch, Robert S. Kerr Environmental Research Laboratory." "August 1979." Includes bibliographical references. "Contract no. 68-03-2450."