| Year |
Citation |
Score |
| 2019 |
Spalding RF, Hirsh AJ, Exner ME, Little NA, Kloppenborg KL. Applicability of the dual isotopes δN and δO to identify nitrate in groundwater beneath irrigated cropland. Journal of Contaminant Hydrology. 220: 128-135. PMID 30591238 DOI: 10.1016/J.Jconhyd.2018.12.004 |
0.59 |
|
| 2018 |
Spalding RF, Hirsh AJ, Exner ME, Stange M, Aravena R. Integrated Deep Soil N and Groundwater Isotope Investigation of N Sources Captured by Municipal Wells Groundwater Monitoring & Remediation. 39: 22-31. DOI: 10.1111/Gwmr.12311 |
0.474 |
|
| 2014 |
Exner ME, Hirsh AJ, Spalding RF. Nebraska's groundwater legacy: Nitrate contamination beneath irrigated cropland. Water Resources Research. 50: 4474-4489. PMID 25558112 DOI: 10.1002/2013Wr015073 |
0.516 |
|
| 2012 |
Spalding RF, Hirsh AJ. Risk-managed approach for routing petroleum pipelines: Keystone XL pipeline, Nebraska. Environmental Science & Technology. 46: 12754-8. PMID 23134326 DOI: 10.1021/Es303238Z |
0.397 |
|
| 2011 |
Spalding RF, Toso MA, Exner ME, Hattan G, Higgins TM, Sekely AC, Jensen SD. Long-term groundwater monitoring results at large, sudden denatured ethanol releases Ground Water Monitoring and Remediation. 31: 69-81. DOI: 10.1111/J.1745-6592.2011.01336.X |
0.407 |
|
| 2010 |
Exner ME, Perea-Estrada H, Spalding RF. Long-term response of groundwater nitrate concentrations to management regulations in Nebraska's central Platte valley. Thescientificworldjournal. 10: 286-97. PMID 20191240 DOI: 10.1100/Tsw.2010.25 |
0.527 |
|
| 2009 |
Mariappan S, Exner ME, Martin GE, Spalding RF. Variability of anaerobic animal waste lagoon delta15N source signatures Environmental Forensics. 10: 19-26. DOI: 10.1080/15275920802502075 |
0.758 |
|
| 2005 |
Exner ME, Spalding RF, Harrell DM. Development of a quality-assessed agrichemical database for monitoring anthropogenic impacts on ground-water quality. Environmental Monitoring and Assessment. 107: 249-57. PMID 16418916 DOI: 10.1007/S10661-005-3108-0 |
0.313 |
|
| 2005 |
Spalding RF, Khan IA, Exner ME. A chemox treatment for urea- and ammonium-contaminated groundwater Remediation Journal. 16: 55-63. DOI: 10.1002/Rem.20070 |
0.408 |
|
| 2004 |
Khan IA, Spalding RF. Enhanced in situ denitrification for a municipal well. Water Research. 38: 3382-8. PMID 15276755 DOI: 10.1016/J.Watres.2004.04.052 |
0.542 |
|
| 2003 |
Spalding RF, Exner ME, Snow DD, Cassada DA, Burbach ME, Monson SJ. Herbicides in ground water beneath Nebraska's Management Systems Evaluation Area. Journal of Environmental Quality. 32: 92-9. PMID 12549547 DOI: 10.2134/Jeq2003.9200 |
0.547 |
|
| 2003 |
Spalding RF, Watts DG, Snow DD, Cassada DA, Exner ME, Schepers JS. Herbicide loading to shallow ground water beneath Nebraska's Management Systems Evaluation Area. Journal of Environmental Quality. 32: 84-91. PMID 12549546 DOI: 10.2134/Jeq2003.8400 |
0.551 |
|
| 2003 |
Khan IA, Spalding RF. Development of a procedure for sustainable in situ aquifer denitrification Remediation Journal. 13: 53-69. DOI: 10.1002/Rem.10064 |
0.366 |
|
| 2001 |
Zhu J, Snow DD, Cassada DA, Monson SJ, Spalding RF. Analysis of oxytetracycline, tetracycline, and chlortetracycline in water using solid-phase extraction and liquid chromatography-tandem mass spectrometry. Journal of Chromatography. A. 928: 177-86. PMID 11587336 DOI: 10.1016/S0021-9673(01)01139-6 |
0.485 |
|
| 2001 |
Spalding RF, Watts DG, Schepers JS, Burbach ME, Exner ME, Poreda RJ, Martin GE. Controlling nitrate leaching in irrigated agriculture. Journal of Environmental Quality. 30: 1184-94. PMID 11476495 DOI: 10.2134/Jeq2001.3041184X |
0.764 |
|
| 2001 |
Hassan KM, Spalding RF. Hydrogen isotope values in lacustrine kerogen Chemical Geology. 175: 713-721. DOI: 10.1016/S0009-2541(00)00339-9 |
0.406 |
|
| 2001 |
Spalding RF, U ZK, Hyun SW, Martin GE, Burbach ME, Yang SII, Kim M, Exner ME, Song SJ. Source identification of nitrate on Cheju Island, South Korea Nutrient Cycling in Agroecosystems. 61: 237-246. DOI: 10.1007/S10705-004-1476-4 |
0.767 |
|
| 2000 |
Cassada DA, Zhang Y, Snow DD, Spalding RF. Trace analysis of ethanol, MTBE, and related oxygenate compounds in water using solid-phase microextraction and gas chromatography/mass spectrometry. Analytical Chemistry. 72: 4654-8. PMID 11028625 DOI: 10.1021/Ac000462V |
0.383 |
|
| 1999 |
Cassada DA, Monson SJ, Snow DD, Spalding RF. Sensitive determination of RDX, nitroso-RDX metabolites, and other munitions in ground water by solid-phase extraction and isotope dilution liquid chromatography-atmospheric pressure electro-spray [correction of chemical] ionization mass spectrometry. Journal of Chromatography. A. 844: 87-95. PMID 10399325 DOI: 10.1016/S0021-9673(99)00310-6 |
0.344 |
|
| 1999 |
Cassada D, Monson S, Snow D, Spalding R. Erratum to: ‘‘Sensitive determination of RDX, nitrosos-RDX metabolites, and other munitions in ground water by solid-phase extraction and isotope dilution liquid chromatography-atmospheric pressure chemical ionization mass spectrometry‘‘ [J. Chromatogr. A, 844 (1999) 87–95] Journal of Chromatography A. 857: 369. DOI: 10.1016/S0021-9673(99)00820-1 |
0.376 |
|
| 1998 |
DiGnazio FJ, Krothe NC, Baedke SJ, Spalding RF. δ15N of nitrate derived from explosive sources in a karst aquifer beneath the Ammunition Burning Ground, Crane Naval Surface Warfare Center, Indiana, USA Journal of Hydrology. 206: 164-175. DOI: 10.1016/S0022-1694(98)00085-7 |
0.511 |
|
| 1998 |
Bates HK, Spalding RF. Aquifer denitrification as interpreted from in situ microcosm experiments Journal of Environmental Quality. 27: 174-182. |
0.404 |
|
| 1998 |
Bates HK, Martin GE, Spalding RF. Kinetic isotope effects in production of nitrite-nitrogen and dinitrogen gas during in situ denitrification Journal of Environmental Quality. 27: 183-191. |
0.354 |
|
| 1997 |
Katupitiya A, Eisenhauer DE, Ferguson RB, Spalding RF, Roeth FW, Bobier MW. Long-term tillage and crop rotation effects on residual nitrate in the crop root zone and nitrate accumulation in the intermediate vadose zone Transactions of the American Society of Agricultural Engineers. 40: 1321-1327. DOI: 10.13031/2013.21390 |
0.343 |
|
| 1997 |
Ma L, Spalding RF. Effects of artificial recharge on ground water quality and aquifer storage recovery Journal of the American Water Resources Association. 33: 561-572. DOI: 10.1111/J.1752-1688.1997.Tb03532.X |
0.548 |
|
| 1997 |
Hassan KM, Swinehart JB, Spalding RF. Evidence for Holocene environmental change from C/N ratios, and delta-13C and delta-15N values in Swan Lake sediments, western Sand Hills, Nebraska Journal of Paleolimnology. 18: 121-130. DOI: 10.1023/A:1007993329040 |
0.461 |
|
| 1997 |
Snow DD, Spalding RF. Short-term aquifer residence times estimated from 222Rn disequilibrium in artificially-recharged ground water Journal of Environmental Radioactivity. 37: 307-325. DOI: 10.1016/S0265-931X(97)00001-5 |
0.453 |
|
| 1997 |
Iqbal MZ, Krothe NC, Spalding RF. Nitrogen isotope indicators of seasonal source variability to groundwater Environmental Geology. 32: 210-218. DOI: 10.1007/s002540050209 |
0.435 |
|
| 1997 |
Ma L, Spalding RF. Herbicide persistence and mobility in Recharge Lake watershed in York, Nebraska Journal of Environmental Quality. 26: 115-125. |
0.415 |
|
| 1996 |
Ma L, Spalding RF. Stable isotope characterization of the impacts of artificial ground water recharge Water Resources Bulletin. 32: 1273-1282. DOI: 10.1111/J.1752-1688.1996.Tb03496.X |
0.486 |
|
| 1996 |
Cai Z, Monson SJ, Spalding RF. Determination of atrazine and hydroxyatrazine in agricultural Runoff waters by liquid chromatography and fast atom bombardment-high resolution mass spectrometry Journal of Aoac International. 79: 929-935. DOI: 10.1093/Jaoac/79.4.929 |
0.481 |
|
| 1996 |
Cai Z, Cerny RL, Spalding RF. Microbore liquid chromatographic-mass spectrometric determination of atrazine and its major hydroxylated degradate in water at parts-per-trillion levels using electrospray Journal of Chromatography A. 753: 243-251. DOI: 10.1016/S0021-9673(96)00555-9 |
0.43 |
|
| 1996 |
Ma L, Spalding RF. Herbicide Mobility and Variation in Agricultural Runoff in the Beaver Creek Watershed in Nebraska Acs Symposium Series. 630: 226-236. |
0.333 |
|
| 1996 |
Papiernik TD, Widmer SK, Spalding RF. Effect of various materials in multilevel samplers on monitoring commonly occurring agrichemicals in ground water Ground Water Monitoring and Remediation. 16: 80-84. |
0.365 |
|
| 1996 |
Cai Z, Monson SJ, Spalding RF. Determination of Atrazine and Hydroxyatrazine in Agricultural Runoff Waters by Liquid Chromatography and Fast Atom Bombardment-High Resolution Mass Spectrometry Journal of Aoac International. 79: 929-935. |
0.386 |
|
| 1995 |
Martin GE, Snow DD, Kim E, Spalding RF. Simultaneous Determination of Argon and Nitrogen Groundwater. 33: 781-785. DOI: 10.1111/J.1745-6584.1995.Tb00024.X |
0.738 |
|
| 1995 |
Cai Z, Gross ML, Spalding RF. Determination of didealkylatrazine in water by graphitized carbon black extraction followed by gas chromatography-high resolution mass spectrometry Analytica Chimica Acta. 304: 67-73. DOI: 10.1016/0003-2670(94)00508-J |
0.474 |
|
| 1994 |
Spalding RF, Snow DD, Cassada DA, Burbach ME. Study of pesticide occurrence in two closely spaced lakes in Northeastern Nebraska Journal of Environmental Quality. 23: 571-578. DOI: 10.2134/Jeq1994.00472425002300030024X |
0.529 |
|
| 1994 |
Cai Z, Ramanujam VMS, Gross ML, Monson SJ, Cassada DA, Spalding RF. Liquid-Solid Extraction and Fast Atom Bombardment High-Resolution Mass Spectrometry for the Determination of Hydroxyatrazine in Water at Low-ppt Levels Analytical Chemistry. 66: 4202-4209. DOI: 10.1021/Ac00095A015 |
0.36 |
|
| 1994 |
Exner ME, Spalding RF. N-15 Identification of nonpoint sources of nitrate contamination beneath cropland in the Nebraska Panhandle: Two case studies Applied Geochemistry. 9: 73-81. DOI: 10.1016/0883-2927(94)90054-X |
0.567 |
|
| 1994 |
Snow DD, Spalding RF. Uranium isotopes in the Platte River drainage basin of the North American High plains Region Applied Geochemistry. 9: 271-278. DOI: 10.1016/0883-2927(94)90037-X |
0.499 |
|
| 1994 |
Spalding RF, Parrott JD. Shallow groundwater denitrification Science of the Total Environment, The. 141: 17-25. DOI: 10.1016/0048-9697(94)90014-0 |
0.559 |
|
| 1994 |
Cassada DA, Spalding RF, Cai Z, Gross ML. Determination of atrazine, deethylatrazine and deisopropylatrazine in water and sediment by isotope dilution gas chromatography-mass spectrometry Analytica Chimica Acta. 287: 7-15. DOI: 10.1016/0003-2670(94)85095-X |
0.481 |
|
| 1993 |
Zlotnik VA, Spalding RF, Exner ME, Burbach ME. Sampling of Non-Point Source Contamination in High-Capacity Wells Water Science and Technology. 28: 409-413. DOI: 10.2166/Wst.1993.0443 |
0.406 |
|
| 1993 |
Spalding RF, Exner ME. Occurrence of nitrate in groundwater - A review Journal of Environmental Quality. 22: 392-402. DOI: 10.2134/Jeq1993.00472425002200030002X |
0.542 |
|
| 1993 |
Herbei MJ, Spalding RF. Vadose Zone Fertilizer‐Derived Nitrate and δ15N Extracts Groundwater. 31: 376-382. DOI: 10.1111/J.1745-6584.1993.Tb01838.X |
0.433 |
|
| 1993 |
Caldwell KA, Sadagopa Ramanujam VM, Cai Z, Gross ML, Spalding RF. Herbicide trace analysis by high-resolution fast atom bombardment mass spectrometry: quantification of low parts per trillion levels of atrazine in water Analytical Chemistry. 65: 2372-2379. DOI: 10.1021/Ac00065A034 |
0.358 |
|
| 1993 |
Cai Z, Ramanujam VMS, Giblin DE, Gross ML, Spalding RF. Determination of atrazine in water at low- and sub-parts-per-trillion levels by using solid-phase extraction and gas chromatography/high-resolution mass spectrometry Analytical Chemistry. 65: 21-26. DOI: 10.1021/Ac00049A006 |
0.422 |
|
| 1993 |
Spalding RF, Exner ME, Martin GE, Snow DD. Effects of sludge disposal on groundwater nitrate concentrations Journal of Hydrology. 142: 213-228. DOI: 10.1016/0022-1694(93)90011-W |
0.766 |
|
| 1993 |
Cai Z, Ramanujam VMS, Giblin DE, Gross ML, Spalding RF. Determination of atrazine in water at low- and sub-parts-per-trillion levels by using solid-phase extraction and gas chromatography/high-resolution mass spectrometry Analytical Chemistry. 65: 21-26. |
0.366 |
|
| 1993 |
Caldwell KA, Sadagopa Ramanujam VM, Cai Z, Gross ML, Spalding RF. Herbicide trace analysis by high-resolution fast atom bombardment mass spectrometry: Quantification of low parts per trillion levels of atrazine in water Analytical Chemistry. 65: 2372-2379. |
0.356 |
|
| 1993 |
Bobier MW, Frank KD, Spalding RF. Nitrate-N movement in a fine-textured vadose zone Journal of Soil &Amp; Water Conservation. 48: 350-353. |
0.332 |
|
| 1991 |
Exner ME, Burbach ME, Watts DG, Shearman RC, Spalding RF. Deep nitrate movement in the unsaturated zone of a simulated urban lawn Journal of Environmental Quality. 20: 658-662. DOI: 10.2134/Jeq1991.00472425002000030025X |
0.566 |
|
| 1991 |
Saint-Fort R, Schepers JS, Spalding RF. Potentially Mineralizable Nitrogen And Nitrate Leaching Under Different Land-Use Conditions In Western Nebraska Journal of Environmental Science and Health. Part a: Environmental Science and Engineering and Toxicology. 26: 335-345. DOI: 10.1080/10934529109375639 |
0.533 |
|
| 1989 |
Spalding RF, Burbach ME, Exner ME. Pesticides in Nebraska's ground water Ground Water Monitoring Review. 9: 126-133. DOI: 10.1111/J.1745-6592.1989.Tb01021.X |
0.439 |
|
| 1989 |
Spalding RF. Complexities Associated with the Interpretation of Trace Pesticide Levels in Ground Water Groundwater Monitoring & Remediation. 9: 79-80. DOI: 10.1111/J.1745-6592.1989.Tb01015.X |
0.426 |
|
| 1989 |
Spalding RF, Snow DD. Streamlevels of agrichemicals during a spring discharge event Chemosphere. 19: 1129-1140. DOI: 10.1016/0045-6535(89)90061-1 |
0.431 |
|
| 1988 |
Spalding RF, Kitchen LA. Nitrate in the intermediate vadose zone beneath irrigated cropland Ground Water Monitoring Review. 8: 89-95. DOI: 10.1111/J.1745-6592.1988.Tb00994.X |
0.506 |
|
| 1988 |
Spalding RF, Fulton JW. Groundwater munition residues and nitrate near Grand Island, Nebraska, U.S.A Journal of Contaminant Hydrology. 2: 139-153. DOI: 10.1016/0169-7722(88)90004-6 |
0.358 |
|
| 1987 |
Fischer AJ, Rowan EA, Spalding RF. VOCs in Ground Water Influenced by Large Scale Withdrawals Groundwater. 25: 407-414. DOI: 10.1111/J.1745-6584.1987.Tb02145.X |
0.449 |
|
| 1985 |
Exner ME, Spalding RF. Ground‐Water Contamination and Well Construction in Southeast Nebraska Groundwater. 23: 26-34. DOI: 10.1111/J.1745-6584.1985.Tb02776.X |
0.449 |
|
| 1984 |
Lindau CW, Spalding RF. Major Procedural Discrepancies in Soil Extracted Nitrate Levels and Nitrogen Isotopic Values Groundwater. 22: 273-278. DOI: 10.1111/J.1745-6584.1984.Tb01399.X |
0.419 |
|
| 1984 |
Spalding RF, Druliner AD, Whiteside LS, Struempler AW. Uranium geochemistry in groundwater from tertiary sediments Geochimica Et Cosmochimica Acta. 48: 2679-2692. DOI: 10.1016/0016-7037(84)90316-8 |
0.471 |
|
| 1982 |
Spalding RF, Exner ME, Lindau CW, Eaton DW. Investigation of sources of groundwater nitrate contamination in the Burbank-Wallula area of Washington, U.S.A Journal of Hydrology. 58: 307-324. DOI: 10.1016/0022-1694(82)90041-5 |
0.585 |
|
| 1981 |
Spalding RF, Druliner AD. Groundwater uranium concentrations-How high is high? Studies in Environmental Science. 17: 581-586. DOI: 10.1016/S0166-1116(08)71955-1 |
0.359 |
|
| 1981 |
Wehtje G, Leavitt JRC, Spalding RF, Mielke LN, Schepers JS. Atrazine contamination of groundwater in the platte valley of Nebraska from non-point sources Studies in Environmental Science. 17: 141-145. DOI: 10.1016/0048-9697(81)90136-4 |
0.477 |
|
| 1980 |
Spalding RF, Junk GA, Richard JJ. Pesticides in ground water beneath irrigated farmland in Nebraska, August 1978 Pestic. Monit. J.. 14: 70-73. PMID 7232106 |
0.434 |
|
| 1980 |
Spalding RF, Exner ME. Areal, vertical, and temporal differences in ground water chemistry: I. Inorganic constituents Journal of Environmental Quality. 9: 466-479. DOI: 10.2134/Jeq1980.00472425000900030030X |
0.568 |
|
| 1980 |
Junk GA, Spalding RF, Richard JJ. Areal, vertical, and temporal differences in ground water chemistry: II. Organic constituents Journal of Environmental Quality. 9: 479-483. |
0.523 |
|
| 1979 |
Gormly JR, Spalding RF. Sources and Concentrations of Nitrate‐Nitrogen in Ground Water of the Central Platte Region, Nebraska Groundwater. 17: 291-301. DOI: 10.1111/J.1745-6584.1979.Tb03323.X |
0.54 |
|
| 1979 |
Exner ME, Spalding RF. Evolution of contaminated groundwater in Holt County, Nebraska Water Resources Research. 15: 139-147. DOI: 10.1029/Wr015I001P00139 |
0.474 |
|
| 1979 |
Spalding RF, Exner ME, Sullivan JJ, Lyon PA. Chemical seepage from a tail water recovery pit to adjacent ground water Journal of Environmental Quality. 8: 374-383. |
0.527 |
|
| 1978 |
Spalding RF, Gormly JR, Curtiss BH, Exner ME. Nonpoint nitrate contamination of ground water in Merrick County, Nebraska Ground Water. 16: 86-95. DOI: 10.1111/J.1745-6584.1978.Tb03207.X |
0.561 |
|
| 1978 |
Spalding RF, Gormly JR, Nash KG. Carbon contents and sources in ground waters of the central Platte region in Nebraska Journal of Environmental Quality. 7: 428-434. |
0.361 |
|
| 1976 |
Spalding RF, Exner ME, Gormly JR. A note on an in situ groundwater sampling procedure Water Resources Research. 12: 1319-1321. DOI: 10.1029/Wr012I006P01319 |
0.439 |
|
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