Neil M Dubrovsky
Neil Dubrovsky is a Scientist Emeritus in the USGS Water Resources Mission Area, Earth System Processes Division (ESPD), Water Resources Assessments Branch.
I have been a hydrologist with the U.S. Geological Survey for over 30 years. I spent most of this time focusing on large-scale multidisciplinary water-quality investigations as a manager for the USGS’s National Water Quality Program (see USGS Circular 1350 "Nutrients in the Nation’s Streams and Groundwater, 1992-2004"). Prior to this I conducted studies on trace elements, nutrients, and pesticides in rivers and groundwater in California. I have been fortunate to work on a broad range of topics, including surficial processes (M.A.), the geochemistry of abandoned coal mines (Pennsylvania DEP), the geochemistry of inactive uranium tailing (Ph.D), and nonpoint contaminants from intensive agriculture. I am particularly interested in redox controls on contaminant migration, chemical transport between groundwater and streams, and integration of transport process understanding into large-scale models.
Professional Experience
Professional Studies/Experience
2016 – 2017: Chief, NAWQA Surface Water Assessment.
2012 – 2016: NWQP/NAWQA Western Region Program Officer.
2003 – 2012: Chief, NAWQA Nutrients and Trace Elements National Synthesis team.
1996 – 2002: Program Chief for hydrologic investigations for the Central Valley Program, California WSC, USGS..
1990 – 96: Chief, San Joaquin-Tulare Basins study team of the National Water Quality Assessment (NAWQA) program.
1986 – 89: Chief, Central Valley RASA Phase II Study, Areal and depth distribution of trace elements in regional aquifers, San Joaquin Valley.
Education and Certifications
Education
Ph.D Hydrogeology 1986 University of Waterloo Ontario Canada
M.A. Geomorphology 1977 SUNY Binghamton NY
B.A. Geology 1974 Tufts University Medford, MA
Science and Products
Phytoplankton data for samples collected at twelve large river sites throughout the United States, June through October 2019
This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from twelve large river sites throughout the United States, from June through October 2019. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a National Wat
Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at twelve large river sites throughout the United States, June through October 2019
This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from twelve large river sites throughout the United States, from June through October 2019. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cyan
Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through October 2018
This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from eleven large river sites throughout the United States, from June through October 2018. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a National Wat
Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at eleven large river sites throughout the United States, June through October 2018
This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from eleven large river sites throughout the United States, from June through October 2018. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cyan
Inorganic Constituent and Ancillary Data for Evaluation of Lithium in Groundwater in the United States, 1991-2018
Lithium concentrations in untreated groundwater from 1,464 public-supply wells, 1,676 domestic-supply wells, and 1,560 monitoring wells distributed across 33 principal aquifers in the United States were evaluated for spatial variations and possible explanatory factors. For context, lithium concentrations are compared to a drinking-water only threshold (60 mg/L) and a Health-Based Screening Level (
Phytoplankton tally sheet, including photomicrographs, for samples collected at eleven large river sites throughout the United States, June through September 2017
This U.S. Geological Survey (USGS) Data Release provides the phytoplankton tally sheet, including photomicrographs, for samples collected from eleven large river sites throughout the United States, from June through September 2017. All data are raw tallies, not calculated abundances or concentrations. The dataset includes all routine and quality assurance/quality control samples collected as part
Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through September 2017
This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from eleven large river sites throughout the United States, from June through September 2017. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a National W
Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at eleven large river sites throughout the United States, June through September 2017
This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from eleven large river sites throughout the United States, from June through September 2017. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cy
Filter Total Items: 28
Quality of groundwater used for public supply in the continental United States: A comprehensive assessment
The presence of contaminants in a source water can constrain its suitability for drinking. The quality of groundwater used for public supply was assessed in 25 principal aquifers (PAs) that account for 84% of groundwater pumped for public supply in the U.S. (89.6 million people on a proportional basis). Each PA was sampled across its lateral extent using an equal-area grid, typically with 60 wells
Authors
Kenneth Belitz, Miranda S. Fram, Bruce D. Lindsey, Paul Stackelberg, Laura M. Bexfield, Tyler D. Johnson, Bryant Jurgens, James A. Kingsbury, Peter B. McMahon, Neil M. Dubrovsky
Lithium in groundwater used for drinking-water supply in the United States
Lithium concentrations in untreated groundwater from 1464 public-supply wells and 1676 domestic-supply wells distributed across 33 principal aquifers in the United States were evaluated for spatial variations and possible explanatory factors. Concentrations nationwide ranged from <1 to 396 μg/L (median of 8.1) for public supply wells and <1 to 1700 μg/L (median of 6 μg/L) for domestic supply wells
Authors
Bruce D. Lindsey, Kenneth Belitz, Charles A. Cravotta, Patricia Toccalino, Neil M. Dubrovsky
Large decadal-scale changes in uranium and bicarbonate in groundwater of the irrigated western U.S
Samples collected about one decade apart from 1105 wells from across the U.S. were compiled to assess whether uranium concentrations in the arid climate are linked to changing bicarbonate concentrations in the irrigated western U.S. Uranium concentrations in groundwater were high in the arid climate in the western U.S, where uranium sources are abundant. Sixty-four wells (6%) were above the U.S. E
Authors
Karen R. Burow, Kenneth Belitz, Neil M. Dubrovsky, Bryant C. Jurgens
Cyanobacterial harmful algal blooms and U.S. Geological Survey science capabilities
Cyanobacterial harmful algal blooms (CyanoHABs) are increasingly a global concern because CyanoHABs pose a threat to human and aquatic ecosystem health and cause economic damages. Despite advances in scientific understanding of cyanobacteria and associated compounds, many unanswered questions remain about occurrence, environmental triggers for toxicity, and the ability to predict the timing, durat
Authors
Jennifer L. Graham, Neil M. Dubrovsky, Sandra M. Eberts
Assessment of regional change in nitrate concentrations in groundwater in the Central Valley, California, USA, 1950s-2000s
A regional assessment of multi-decadal changes in nitrate concentrations was done using historical data and a spatially stratified non-biased approach. Data were stratified into physiographic subregions on the basis of geomorphology and soils data to represent zones of historical recharge and discharge patterns in the basin. Data were also stratified by depth to represent a shallow zone generally
Authors
Karen R. Burow, Bryant C. Jurgens, Kenneth Belitz, Neil M. Dubrovsky
Nitrogen contamination of surficial aquifers - A growing legacy
The virtual ubiquity of fertilizer-fed agriculture, increasing over several decades, has become necessary to support the global human population. Ironically, widespread use of nitrogen (N) has contaminated another vital resource: surficial fresh groundwater. Further, as nitrous oxide (N2O) is a potent greenhouse gas, anthropogenic manipulation of N budgets has ramifications that can extend far bey
Authors
Larry J. Puckett, Anthony J. Tesoriero, Neil M. Dubrovsky
The quality of our nation's waters: Nutrients in the nation's streams and groundwater, 1992-2004
National Findings and Their ImplicationsAlthough the use of artificial fertilizer has supported increasing food production to meet the needs of a growing population, increases in nutrient loadings from agricultural and, to a lesser extent, urban sources have resulted in nutrient concentrations in many streams and parts of aquifers that exceed standards for protection of human health and (or) aquat
Authors
Neil M. Dubrovsky, Karen R. Burow, Gregory M. Clark, JoAnn M. Gronberg, Pixie A. Hamilton, Kerie J. Hitt, David K. Mueller, Mark D. Munn, Bernard T. Nolan, Larry J. Puckett, Michael G. Rupert, Terry M. Short, Norman E. Spahr, Lori A. Sprague, William G. Wilber
Nutrients in the nation's streams and groundwater: National findings and implications
A comprehensive national analysis of the distribution and trends of nutrient concentrations in streams and groundwater from 1992 through 2004 is provided by the National Water-Quality Assessment (NAWQA) Program of the United States Geological Survey (USGS). Findings describe the distribution and causes of varying nutrient concentrations in streams and groundwater throughout the Nation and examine
Authors
Neil M. Dubrovsky, Pixie A. Hamilton
Nitrate Loads and Concentrations in Surface-Water Base Flow and Shallow Groundwater for Selected Basins in the United States, Water Years 1990-2006
Hydrograph separation was used to determine the base-flow component of streamflow for 148 sites sampled as part of the National Water-Quality Assessment program. Sites in the Southwest and the Northwest tend to have base-flow index values greater than 0.5. Sites in the Midwest and the eastern portion of the Southern Plains generally have values less than 0.5. Base-flow index values for sites in th
Authors
Norman E. Spahr, Neil M. Dubrovsky, JoAnn M. Gronberg, O. Lehn Franke, David M. Wolock
Nitrate in groundwater of the United States, 1991-2003
An assessment of nitrate concentrations in groundwater in the United States indicates that concentrations are highest in shallow, oxic groundwater beneath areas with high N inputs. During 1991-2003, 5101 wells were sampled in 51 study areas throughout the U.S. as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) program. The well networks reflect the existing used resour
Authors
Karen R. Burow, Bernard T. Nolan, Michael G. Rupert, Neil M. Dubrovsky
Efficacy of algal metrics for assessing nutrient and organic enrichment in flowing waters
1. Algal-community metrics were calculated for periphyton samples collected from 976 streams and rivers by the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Programme during 1993–2001 to evaluate national and regional relations with water chemistry and to compare whether algal-metric values differ significantly among undeveloped and developed land-use classifications.
2. Algal
Authors
S. D. Porter, D. K. Mueller, N.E. Spahr, M.D. Munn, N. M. Dubrovsky
Discrimination of trait-based characteristics by trace element bioaccumulation in riverine fishes
Relations between tissue trace element concentrations and species traits were examined for 45 fish species to determine the extent to which trait-based characteristics accounted for relative differences among species in trace element bioaccumulation. Percentages of fish species correctly classified by discriminant analysis according to traits predicted by tissue trace element concentrations ranged
Authors
T.M. Short, L.R. DeWeese, N. M. Dubrovsky
Non-USGS Publications**
Domagalski , J.L., Dubrovsky, N.M., and Kratzer, C.R., 1997, Pesticides in the San Joaquin River, California: Inputs from dormant sprayed orchards: Journal of Environmental Quality, v. 26, p. 454-465.
Dubrovsky, N.M., Burow, K.R., and Gronberg, J.M., 1995, Effects of two contrasting agricultural land uses on shallow ground water quality in the San Joaquin Valley, California -- Design and preliminary interpretation, in Wagner, B.J., Illangasekare, T.H., and Jensen, K.H., eds., Models for assessing and monitoring groundwater quality: Wallingford, Oxfordshire, U.K., International Association of Hydrological Sciences, publication 227, proceedings, p. 49-58.
Deverel, S.J., Fio, J.L., Dubrovsky, N.M., 1994, Distribution and mobility of selenium in groundwater in the western San Joaquin Valley of California in Selenium in the Environment, Benson, S. and Frankenburger, W. (eds). Marcel Decker, New York.
White, Arthur, and N. M. Dubrovsky, 1994, Chemical Oxidation-Reduction Controls on Selenium Mobility in Groundwater Systems, in Selenium in the Environment, Chapter: 8, Publisher: Marcel Dekker, INc, Editors: W.T. Frankenberger, Jr, and S.M. Benson (eds, pp.185-222)
Dubrovsky, Neil M., Steven Deveral, and R.J. Gilliom, 1993, Multiscale approach to regional ground-water quality assessment: Selenium in the San Joaquin Valley, California, Editors: William M. Alley, in book: Regional Groundwater Quality, Chapter: 22, Van Nostrand Reinhold, , pp.537-562
Domagalski, J.L., N.M. Dubrovsky, 1991, Pesticide Residues in Ground Water of the San Joaquin Valley, California, Journal of Hydrology, 130 (1-4), p 229-338.
Dubrovsky, N.M., Neil, J.M., Welker, M.C., and Evenson, K.D., 1991, Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California: U.S. Geological Survey Water Supply Paper 2380.
Dubrovsky, N.M., Neil, J.M., Fujii, R, Oremland, R.S., and Hollibaugh, J.T., 1990, Influence of redox potential on selenium distribution in ground water, Mendota, western San Joaquin Valley, California: U.S. Geological Survey Open-File Report 90-138, 24p.
Dubrovsky, N.M., and Steven Deverel, 1989, Selenium in Ground Water of the Central Part of the Western Valley, Editors: Robert J. Gilliom, in Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California, Water-Resources Investigations Report 88-4186, pp.32
Dubrovsky, Neil M., John A. Cherry, E.J. Reardon, A.J. Vivyurka, 1985, Geochemical evolution of inactive pyritic tailings in the Elliot Lake uranium district, Canadian Geotechnical Journal, p 110-1228.
Dubrovsky, N. M.,K.A. Morin, J.A. Cherry, D.J.A. Smyth, 1984, Uranium tailings acidification and subsurface contaminant migration in a sand aquifer. Water Pollution Research Journal of Canada
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Phytoplankton data for samples collected at twelve large river sites throughout the United States, June through October 2019
This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from twelve large river sites throughout the United States, from June through October 2019. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a National Wat
Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at twelve large river sites throughout the United States, June through October 2019
This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from twelve large river sites throughout the United States, from June through October 2019. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cyan
Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through October 2018
This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from eleven large river sites throughout the United States, from June through October 2018. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a National Wat
Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at eleven large river sites throughout the United States, June through October 2018
This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from eleven large river sites throughout the United States, from June through October 2018. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cyan
Inorganic Constituent and Ancillary Data for Evaluation of Lithium in Groundwater in the United States, 1991-2018
Lithium concentrations in untreated groundwater from 1,464 public-supply wells, 1,676 domestic-supply wells, and 1,560 monitoring wells distributed across 33 principal aquifers in the United States were evaluated for spatial variations and possible explanatory factors. For context, lithium concentrations are compared to a drinking-water only threshold (60 mg/L) and a Health-Based Screening Level (
Phytoplankton tally sheet, including photomicrographs, for samples collected at eleven large river sites throughout the United States, June through September 2017
This U.S. Geological Survey (USGS) Data Release provides the phytoplankton tally sheet, including photomicrographs, for samples collected from eleven large river sites throughout the United States, from June through September 2017. All data are raw tallies, not calculated abundances or concentrations. The dataset includes all routine and quality assurance/quality control samples collected as part
Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through September 2017
This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from eleven large river sites throughout the United States, from June through September 2017. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a National W
Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at eleven large river sites throughout the United States, June through September 2017
This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from eleven large river sites throughout the United States, from June through September 2017. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cy
Filter Total Items: 28
Quality of groundwater used for public supply in the continental United States: A comprehensive assessment
The presence of contaminants in a source water can constrain its suitability for drinking. The quality of groundwater used for public supply was assessed in 25 principal aquifers (PAs) that account for 84% of groundwater pumped for public supply in the U.S. (89.6 million people on a proportional basis). Each PA was sampled across its lateral extent using an equal-area grid, typically with 60 wells
Authors
Kenneth Belitz, Miranda S. Fram, Bruce D. Lindsey, Paul Stackelberg, Laura M. Bexfield, Tyler D. Johnson, Bryant Jurgens, James A. Kingsbury, Peter B. McMahon, Neil M. Dubrovsky
Lithium in groundwater used for drinking-water supply in the United States
Lithium concentrations in untreated groundwater from 1464 public-supply wells and 1676 domestic-supply wells distributed across 33 principal aquifers in the United States were evaluated for spatial variations and possible explanatory factors. Concentrations nationwide ranged from <1 to 396 μg/L (median of 8.1) for public supply wells and <1 to 1700 μg/L (median of 6 μg/L) for domestic supply wells
Authors
Bruce D. Lindsey, Kenneth Belitz, Charles A. Cravotta, Patricia Toccalino, Neil M. Dubrovsky
Large decadal-scale changes in uranium and bicarbonate in groundwater of the irrigated western U.S
Samples collected about one decade apart from 1105 wells from across the U.S. were compiled to assess whether uranium concentrations in the arid climate are linked to changing bicarbonate concentrations in the irrigated western U.S. Uranium concentrations in groundwater were high in the arid climate in the western U.S, where uranium sources are abundant. Sixty-four wells (6%) were above the U.S. E
Authors
Karen R. Burow, Kenneth Belitz, Neil M. Dubrovsky, Bryant C. Jurgens
Cyanobacterial harmful algal blooms and U.S. Geological Survey science capabilities
Cyanobacterial harmful algal blooms (CyanoHABs) are increasingly a global concern because CyanoHABs pose a threat to human and aquatic ecosystem health and cause economic damages. Despite advances in scientific understanding of cyanobacteria and associated compounds, many unanswered questions remain about occurrence, environmental triggers for toxicity, and the ability to predict the timing, durat
Authors
Jennifer L. Graham, Neil M. Dubrovsky, Sandra M. Eberts
Assessment of regional change in nitrate concentrations in groundwater in the Central Valley, California, USA, 1950s-2000s
A regional assessment of multi-decadal changes in nitrate concentrations was done using historical data and a spatially stratified non-biased approach. Data were stratified into physiographic subregions on the basis of geomorphology and soils data to represent zones of historical recharge and discharge patterns in the basin. Data were also stratified by depth to represent a shallow zone generally
Authors
Karen R. Burow, Bryant C. Jurgens, Kenneth Belitz, Neil M. Dubrovsky
Nitrogen contamination of surficial aquifers - A growing legacy
The virtual ubiquity of fertilizer-fed agriculture, increasing over several decades, has become necessary to support the global human population. Ironically, widespread use of nitrogen (N) has contaminated another vital resource: surficial fresh groundwater. Further, as nitrous oxide (N2O) is a potent greenhouse gas, anthropogenic manipulation of N budgets has ramifications that can extend far bey
Authors
Larry J. Puckett, Anthony J. Tesoriero, Neil M. Dubrovsky
The quality of our nation's waters: Nutrients in the nation's streams and groundwater, 1992-2004
National Findings and Their ImplicationsAlthough the use of artificial fertilizer has supported increasing food production to meet the needs of a growing population, increases in nutrient loadings from agricultural and, to a lesser extent, urban sources have resulted in nutrient concentrations in many streams and parts of aquifers that exceed standards for protection of human health and (or) aquat
Authors
Neil M. Dubrovsky, Karen R. Burow, Gregory M. Clark, JoAnn M. Gronberg, Pixie A. Hamilton, Kerie J. Hitt, David K. Mueller, Mark D. Munn, Bernard T. Nolan, Larry J. Puckett, Michael G. Rupert, Terry M. Short, Norman E. Spahr, Lori A. Sprague, William G. Wilber
Nutrients in the nation's streams and groundwater: National findings and implications
A comprehensive national analysis of the distribution and trends of nutrient concentrations in streams and groundwater from 1992 through 2004 is provided by the National Water-Quality Assessment (NAWQA) Program of the United States Geological Survey (USGS). Findings describe the distribution and causes of varying nutrient concentrations in streams and groundwater throughout the Nation and examine
Authors
Neil M. Dubrovsky, Pixie A. Hamilton
Nitrate Loads and Concentrations in Surface-Water Base Flow and Shallow Groundwater for Selected Basins in the United States, Water Years 1990-2006
Hydrograph separation was used to determine the base-flow component of streamflow for 148 sites sampled as part of the National Water-Quality Assessment program. Sites in the Southwest and the Northwest tend to have base-flow index values greater than 0.5. Sites in the Midwest and the eastern portion of the Southern Plains generally have values less than 0.5. Base-flow index values for sites in th
Authors
Norman E. Spahr, Neil M. Dubrovsky, JoAnn M. Gronberg, O. Lehn Franke, David M. Wolock
Nitrate in groundwater of the United States, 1991-2003
An assessment of nitrate concentrations in groundwater in the United States indicates that concentrations are highest in shallow, oxic groundwater beneath areas with high N inputs. During 1991-2003, 5101 wells were sampled in 51 study areas throughout the U.S. as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) program. The well networks reflect the existing used resour
Authors
Karen R. Burow, Bernard T. Nolan, Michael G. Rupert, Neil M. Dubrovsky
Efficacy of algal metrics for assessing nutrient and organic enrichment in flowing waters
1. Algal-community metrics were calculated for periphyton samples collected from 976 streams and rivers by the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Programme during 1993–2001 to evaluate national and regional relations with water chemistry and to compare whether algal-metric values differ significantly among undeveloped and developed land-use classifications.
2. Algal
Authors
S. D. Porter, D. K. Mueller, N.E. Spahr, M.D. Munn, N. M. Dubrovsky
Discrimination of trait-based characteristics by trace element bioaccumulation in riverine fishes
Relations between tissue trace element concentrations and species traits were examined for 45 fish species to determine the extent to which trait-based characteristics accounted for relative differences among species in trace element bioaccumulation. Percentages of fish species correctly classified by discriminant analysis according to traits predicted by tissue trace element concentrations ranged
Authors
T.M. Short, L.R. DeWeese, N. M. Dubrovsky
Non-USGS Publications**
Domagalski , J.L., Dubrovsky, N.M., and Kratzer, C.R., 1997, Pesticides in the San Joaquin River, California: Inputs from dormant sprayed orchards: Journal of Environmental Quality, v. 26, p. 454-465.
Dubrovsky, N.M., Burow, K.R., and Gronberg, J.M., 1995, Effects of two contrasting agricultural land uses on shallow ground water quality in the San Joaquin Valley, California -- Design and preliminary interpretation, in Wagner, B.J., Illangasekare, T.H., and Jensen, K.H., eds., Models for assessing and monitoring groundwater quality: Wallingford, Oxfordshire, U.K., International Association of Hydrological Sciences, publication 227, proceedings, p. 49-58.
Deverel, S.J., Fio, J.L., Dubrovsky, N.M., 1994, Distribution and mobility of selenium in groundwater in the western San Joaquin Valley of California in Selenium in the Environment, Benson, S. and Frankenburger, W. (eds). Marcel Decker, New York.
White, Arthur, and N. M. Dubrovsky, 1994, Chemical Oxidation-Reduction Controls on Selenium Mobility in Groundwater Systems, in Selenium in the Environment, Chapter: 8, Publisher: Marcel Dekker, INc, Editors: W.T. Frankenberger, Jr, and S.M. Benson (eds, pp.185-222)
Dubrovsky, Neil M., Steven Deveral, and R.J. Gilliom, 1993, Multiscale approach to regional ground-water quality assessment: Selenium in the San Joaquin Valley, California, Editors: William M. Alley, in book: Regional Groundwater Quality, Chapter: 22, Van Nostrand Reinhold, , pp.537-562
Domagalski, J.L., N.M. Dubrovsky, 1991, Pesticide Residues in Ground Water of the San Joaquin Valley, California, Journal of Hydrology, 130 (1-4), p 229-338.
Dubrovsky, N.M., Neil, J.M., Welker, M.C., and Evenson, K.D., 1991, Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California: U.S. Geological Survey Water Supply Paper 2380.
Dubrovsky, N.M., Neil, J.M., Fujii, R, Oremland, R.S., and Hollibaugh, J.T., 1990, Influence of redox potential on selenium distribution in ground water, Mendota, western San Joaquin Valley, California: U.S. Geological Survey Open-File Report 90-138, 24p.
Dubrovsky, N.M., and Steven Deverel, 1989, Selenium in Ground Water of the Central Part of the Western Valley, Editors: Robert J. Gilliom, in Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California, Water-Resources Investigations Report 88-4186, pp.32
Dubrovsky, Neil M., John A. Cherry, E.J. Reardon, A.J. Vivyurka, 1985, Geochemical evolution of inactive pyritic tailings in the Elliot Lake uranium district, Canadian Geotechnical Journal, p 110-1228.
Dubrovsky, N. M.,K.A. Morin, J.A. Cherry, D.J.A. Smyth, 1984, Uranium tailings acidification and subsurface contaminant migration in a sand aquifer. Water Pollution Research Journal of Canada
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.