Publications
Publications
Filter Total Items: 1263
Investigation of anion-exchange and immunoaffinity particle-loaded membranes for the isolation of charged organic analytes from water Investigation of anion-exchange and immunoaffinity particle-loaded membranes for the isolation of charged organic analytes from water
Anion-exchange and immunoaffinity particle loaded membranes (PLMs) were investigated as a mechanism for the isolation of charged organic analytes from water. Kinetic properties determined theoretically included dynamic capacity, pressure drop (ΔP), residence and diffusion times (Tr, Td), and total membrane porosity (εT). These properties were confirmed through experimental evaluation...
Authors
T. R. Dombrowski, G.S. Wilson, E.M. Thurman
Relation of usage to the occurrence of cotton and rice herbicides in three streams of the Mississippi delta Relation of usage to the occurrence of cotton and rice herbicides in three streams of the Mississippi delta
During the 1995 growing season water samples were collected from three streams in the Mississippi delta and were analyzed for selected cotton and rice herbicides and metabolites. The purpose of the study was to relate the use of these herbicides to their occurrence in streams of the delta, to describe how the geochemistry of these herbicides affects their occurrence, and to report the...
Authors
R.H. Coupe, E.M. Thurman, L.R. Zimmerman
Source and transport of desethylatrazine and desisopropylatrazine to groundwater of the midwestern United States Source and transport of desethylatrazine and desisopropylatrazine to groundwater of the midwestern United States
Based on usage of the parent compounds and studies of their dissipation in corn fields, atrazine (6-chloro-N-ethyl-N'-(1-methylethyl-1,3,5-triazine-2,4-diamine)), cyanazine (2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropionitrile), and simazine (6-chloro-N,N'diethyl-1,3,5-triazine-2,4-diamine) are thought to be the important contributors of desethylatrazine (6-chloro...
Authors
E.M. Thurman, D.W. Kolpin, D. A. Goolsby, M. T. Meyer
Degradation of chloroacetanilide herbicides: The prevalence of sulfonic and oxanilic acid metabolites in Iowa groundwaters and surface waters Degradation of chloroacetanilide herbicides: The prevalence of sulfonic and oxanilic acid metabolites in Iowa groundwaters and surface waters
Water samples were collected from 88 municipal wells throughout Iowa during the summer and were collected monthly at 12 stream sites in eastern Iowa from March to December 1996 to study the occurrence of the sulfonic and oxanilic metabolites of acetochlor, alachlor, and metolachlor. The sulfonic and oxanilic metabolites were present in almost 75% of the groundwater samples and were...
Authors
Stephen J. Kalkhoff, Dana W. Kolpin, E.M. Thurman, I. Ferrer, D. Barcelo
Geographic Information Systems Laboratory at Haskell Indian Nations University Geographic Information Systems Laboratory at Haskell Indian Nations University
No abstract available.
Authors
Thomas J. Trombley, Michael D. Kemppainen
Herbicides in Rainfall Across the Midwestern and Northeastern United States, 1990-91 Herbicides in Rainfall Across the Midwestern and Northeastern United States, 1990-91
No abstract available.
Authors
John K. Stamer, Donald A. Goolsby, E. Michael Thurman
Herbicides in ground water of the Midwest: A regional study of shallow aquifers, 1991-94 Herbicides in ground water of the Midwest: A regional study of shallow aquifers, 1991-94
The intensive herbicide use associated with the 'Corn Belt' marks the Midwestern United States as a region where herbicide contamination of ground water could be a problem. To better understand the regional occurrence of herbicides in shallow aquifers of the Midwest, a sampling network of 303 wells across 12 States was developed. The results documented relatively widespread, low-level
Authors
Dana W. Kolpin, J. K. Stamer, D. A. Goolsby, E.M. Thurman
Atrazine in Source Water Intended for Artificial Ground-Water Recharge, South-Central Kansas Atrazine in Source Water Intended for Artificial Ground-Water Recharge, South-Central Kansas
Atrazine, an herbicide commonly applied to row crops, is of concern because of potential effects on water quality. This fact sheet describes atrazine in water from the Little Arkansas River in south-central Kansas. The river is being evaluated as a source of artificial recharge into the Equus Beds aquifer, which provides water for the city of Wichita.
Authors
Victoria G. Christensen, Andrew C. Ziegler
Hydrogeology and subsurface nitrate in the Upper Big Blue Natural Resources District, central Nebraska, July 1995 through September 1997 Hydrogeology and subsurface nitrate in the Upper Big Blue Natural Resources District, central Nebraska, July 1995 through September 1997
No abstract available.
Authors
Ingrid M. Verstraeten, Virginia L. McGuire, K. L. Heckman
Water-quality assessment of the Ozark Plateaus study unit, Arkansas, Kansas, Missouri, and Oklahoma- fish communities in streams of the Ozark Plateaus and their relations to selected environmental factors Water-quality assessment of the Ozark Plateaus study unit, Arkansas, Kansas, Missouri, and Oklahoma- fish communities in streams of the Ozark Plateaus and their relations to selected environmental factors
Fish communities from 22 reaches at 18 stations in the Ozark Plateaus were sampled in 1993, 1994, and 1995. The 18 stations were chosen to represent selected combinations of major environmental factors (geology/physiographic area, land use, and basin size). Additional physical, chemical, and biological factors also were measured for each of the 22 reaches and the influence of these...
Authors
James C. Petersen
Water-table conditions, aquifer properties, and streambed permeability along the Republican River from near Hardy, Nebraska, to Concordia, Kansas Water-table conditions, aquifer properties, and streambed permeability along the Republican River from near Hardy, Nebraska, to Concordia, Kansas
No abstract available.
Authors
C. V. Hansen
Nitrate and other water-quality characteristics, and nitrogen in the unsaturated zone, in the Red Willow and Hitchcock counties Special Protection Area, southwest Nebraska, 1993-95 Nitrate and other water-quality characteristics, and nitrogen in the unsaturated zone, in the Red Willow and Hitchcock counties Special Protection Area, southwest Nebraska, 1993-95
No abstract available.
Authors
G. V. Steele