| human | Q5 |
| P496 | ORCID iD | 0000-0001-5693-6455 |
| P1153 | Scopus author ID | 7004491698 |
| P69 | educated at | University of California, Berkeley | Q168756 |
| University of Michigan | Q230492 | ||
| Rosenstiel School of Marine, Atmospheric, and Earth Science | Q7368604 | ||
| P108 | employer | United States Geological Survey | Q193755 |
| P734 | family name | Bohlke | Q37248587 |
| Bohlke | Q37248587 | ||
| Bohlke | Q37248587 | ||
| P735 | given name | John | Q4925477 |
| John | Q4925477 | ||
| P106 | occupation | researcher | Q1650915 |
| P21 | sex or gender | male | Q6581097 |
| Q95612372 | A New Eel of the Genus Taenioconger from the Philippines |
| Q51347084 | A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater. |
| Q57410237 | A comparison of recharge rates in aquifers of the United States based on groundwater-age data |
| Q58391042 | A partial exponential lumped parameter model to evaluate groundwater age distributions and nitrate trends in long-screened wells |
| Q58391089 | Ammonium in thermal waters of Yellowstone National Park: Processes affecting speciation and isotope fractionation |
| Q57410193 | Ammonium transport and reaction in contaminated groundwater: Application of isotope tracers and isotope fractionation studies |
| Q58391039 | Anoxic nitrate reduction coupled with iron oxidation and attenuation of dissolved arsenic and phosphate in a sand and gravel aquifer |
| Q38070943 | Application of stable isotope ratio analysis for biodegradation monitoring in groundwater |
| Q58391115 | Aquifer-scale controls on the distribution of nitrate and ammonium in ground water near La Pine, Oregon, USA |
| Q61469887 | Assessing denitrification in groundwater using natural gradient tracer tests with 15 N: In situ measurement of a sequential multistep reaction |
| Q103813712 | Assessing the Seasonal Dynamics of Nitrate and Sulfate Aerosols at the South Pole Utilizing Stable Isotopes |
| Q43330443 | Assessment of nitrification potential in ground water using short term, single-well injection experiments. |
| Q38927930 | Atacama perchlorate as an agricultural contaminant in groundwater: isotopic and chronologic evidence from Long Island, New York. |
| Q55593695 | Atomic Weights of the Elements 2011 |
| Q55593706 | Atomic weights of the elements 2011 (IUPAC Technical Report) |
| Q28315565 | Atomic weights of the elements. Review 2000 (IUPAC Technical Report) |
| Q43326353 | Biogeochemical evolution of a landfill leachate plume, Norman, Oklahoma |
| Q46167930 | Biogeochemistry at a wetland sediment-alluvial aquifer interface in a landfill leachate plume |
| Q58391092 | Biological and geochemical controls on diel dissolved inorganic carbon cycling in a low-order agricultural stream: Implications for reach scales and beyond |
| Q57757093 | Brackish groundwater in the United States |
| Q58391218 | Brine history indicated by argon, krypton, chlorine, bromine, and iodine analyses of fluid inclusions from the Mississippi Valley type lead-fluorite-barite deposits at Hansonburg, New Mexico |
| Q58391183 | California gold |
| Q58391234 | Carbonate-sulfide equilibria and “stratabound” disseminated epigenetic gold mineralization: a proposal based on examples from Alleghany, California, U.S.A |
| Q40602185 | Chemical Considerations for an Updated National Assessment of Brackish Groundwater Resources. |
| Q58391207 | Chemical analyses of ground and surface water from Battle Brook drainage basin, near Princeton, Minnesota |
| Q58391177 | Chemical and isotopic composition of water from springs, wells, and streams in parts of Shenandoah National Park, Virginia, and vicinity, 1995-1999 |
| Q58391198 | Chemical and stable-isotope data from an experiment to examine temporal variability in water samples from screened wells on Cape Cod, Massachusetts, 1994 |
| Q58391210 | Chemical, isotopic, and microbiological evidence for denitrification during transport of domestic wastewater through a thick unsaturated zone in the Mojave Desert, San Bernardino County, California |
| Q39494992 | Chlorine-36 as a tracer of perchlorate origin. |
| Q58391031 | Clarification of the term “normal material” used for standard atomic weights (IUPAC Technical Report) |
| Q58391205 | Combined Use of Groundwater Dating, Chemical, and Isotopic Analyses to Resolve the History and Fate of Nitrate Contamination in Two Agricultural Watersheds, Atlantic Coastal Plain, Maryland |
| Q58391075 | Comparison of particle-tracking and lumped-parameter age-distribution models for evaluating vulnerability of production wells to contamination |
| Q58391161 | Comparison of δ18O Measurements in Nitrate by Different Combustion Techniques |
| Q53198462 | Comprehensive inter-laboratory calibration of reference materials for delta18O versus VSMOW using various on-line high-temperature conversion techniques. |
| Q62580156 | Constraining the Oxygen Isotopic Composition of Nitrate Produced by Nitrification |
| Q46177870 | Contrasting residence times and fluxes of water and sulfate in two small forested watersheds in Virginia, USA. |
| Q58391046 | Corrigendum to “Widespread occurrence of (per)chlorate in the Solar System” [Earth Planet. Sci. Lett. 430 (2015) 470–476] |
| Q58391133 | DENITRIFICATION IN NITRATE-RICH STREAMS: APPLICATION OF N2:Ar AND15N-TRACER METHODS IN INTACT CORES |
| Q98155263 | Degradation of RDX (Hexahydro-1,3,5-trinitro-1,3,5-triazine) in contrasting coastal marine habitats: Subtidal non-vegetated (sand), subtidal vegetated (silt/eel grass), and intertidal marsh |
| Q36700420 | Denitrification across landscapes and waterscapes: a synthesis. |
| Q58391202 | Denitrification and mixing in a stream—aquifer system: effects on nitrate loading to surface water |
| Q58391186 | Denitrification in marine shales in northeastern Colorado |
| Q58869128 | Denitrification in the recharge area and discharge area of a transient agricultural nitrate plume in a glacial outwash sand aquifer, Minnesota |
| Q39148265 | Density-Driven Free-Convection Model for Isotopically Fractionated Geogenic Nitrate in Sabkha Brine |
| Q58179616 | Deposition, accumulation, and alteration of Cl−, NO3−, ClO4− and ClO3− salts in a hyper-arid polar environment: Mass balance and isotopic constraints |
| Q103813719 | Determination of the delta(15N/14N)of Ammonium (NH4+) in Water: RSIL Lab Code 2898 |
| Q39249637 | Determination of the total oxygen isotopic composition of nitrate and the calibration of a delta 17O nitrate reference material. |
| Q44966397 | Determination of δ(18)O and δ(15)N in Nitrate |
| Q58391098 | Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes |
| Q39018729 | Ecohydrological factors affecting nitrate concentrations in a phreatic desert aquifer in northwestern China. |
| Q34692950 | Educational webtool illustrating groundwater age effects on contaminant trends in wells. |
| Q58391119 | Effects of Mother Lode-Type Gold Mineralization on 187Os/188Os and Platinum Group Element Concentrations in Peridotite: Alleghany District, California |
| Q39044878 | Effects of nitrate and water on the oxygen isotopic analysis of barium sulfate precipitated from water samples. |
| Q58391122 | Effects of surface-water irrigation on sources, fluxes, and residence times of water, nitrate, and uranium in an alluvial aquifer |
| Q58391100 | Errata: Atomic weights of the elements: Review 2000 (IUPAC Technical Report) |
| Q58391077 | Factors controlling nitrate fluxes in groundwater in agricultural areas |
| Q58391103 | Flow and geochemistry of groundwater beneath a back-barrier lagoon: The subterranean estuary at Chincoteague Bay, Maryland, USA |
| Q58391027 | Four-dimensional isotopic approach to identify perchlorate sources in groundwater: Application to the Rialto-Colton and Chino subbasins, southern California (USA) |
| Q58391105 | Fractionation of stable isotopes in perchlorate and nitrate during in situ biodegradation in a sandy aquifer |
| Q58193875 | Geochemical conditions and nitrogen transport in nearshore groundwater and the subterranean estuary at a Cape Cod embayment, East Falmouth, Massachusetts, 2013–14 |
| Q58391229 | Geochemistry of reduced gas related to serpentinization of the Zambales ophiolite, Philippines |
| Q58391149 | Geochemistry, radiocarbon ages, and paleorecharge conditions along a transect in the central High Plains aquifer, southwestern Kansas, USA |
| Q57856674 | Global patterns and environmental controls of perchlorate and nitrate co-occurrence in arid and semi-arid environments |
| Q58391150 | Ground Water Beneath Coastal Bays of the Delmarva Peninsula: Ages and Nutrients |
| Q43529901 | Ground water stratification and delivery of nitrate to an incised stream under varying flow conditions |
| Q58391192 | Groundwater Record of Halocarbon Transport by the Danube River |
| Q58391057 | Groundwater movement, recharge, and perchlorate occurrence in a faulted alluvial aquifer in California (USA) |
| Q57410255 | Groundwater residence times in Shenandoah National Park, Blue Ridge Mountains, Virginia, USA: a multi-tracer approach |
| Q59848504 | HYDROLOGIC AND BIOGEOCHEMICAL CONTROLS ON NITRATE MASS TRANSFER FROM CONTAMINATED GROUNDWATER INTO A GROUNDWATER FLOW-THROUGH LAKE ON CAPE COD, MA |
| Q58391081 | Heterogeneous redox conditions, arsenic mobility, and groundwater flow in a fractured-rock aquifer near a waste repository site in New Hampshire, USA |
| Q58391195 | Hydrogeologic and water-quality data used to evaluate the effects of focused recharge on ground-water quality near Princeton, Minnesota, 1991-95 |
| Q62174895 | Hydrology and Biogeochemistry Linkages |
| Q58391070 | Hyporheic zone denitrification: Controls on effective reaction depth and contribution to whole-stream mass balance |
| Q59848508 | IN SITU DETERMINATION OF THE FATE AND FLUX OF NITRATE IN GROUNDWATER AS IT DISCHARGES THROUGH THE SURFACE SEDIMENTS INTO A GROUNDWATER FLOW-THROUGH LAKE ON WESTERN CAPE COD, MA |
| Q40165991 | Identification of Groundwater Nitrate Contamination from Explosives Used in Road Construction: Isotopic, Chemical, and Hydrologic Evidence |
| Q30052064 | Isotope-abundance variations of selected elements (IUPAC Technical Report) |
| Q58391142 | Isotopic Compositions of the Elements, 2001 |
| Q62176325 | Isotopic Tracing of Perchlorate in the Environment |
| Q44930381 | Isotopic analysis of N and o in nitrite and nitrate by sequential selective bacterial reduction to N2O. |
| Q39097963 | Isotopic composition and origin of indigenous natural perchlorate and co-occurring nitrate in the southwestern United States. |
| Q50636244 | Limited occurrence of denitrification in four shallow aquifers in agricultural areas of the United States. |
| Q58391153 | Long term atmospheric deposition as the source of nitrate and other salts in the Atacama Desert, Chile: New evidence from mass-independent oxygen isotopic compositions |
| Q59848510 | MODELING THE EFFECT OF TEMPERATURE VARIABILITY ON GROUNDWATER ARSENIC PLUMES DOWNGRADIENT OF EUTROPHIC LAKES |
| Q43364947 | Mass balance and isotope effects during nitrogen transport through septic tank systems with packed-bed (sand) filters |
| Q58391167 | Measurement of the Oxygen Isotopic Composition of Nitrate in Seawater and Freshwater Using the Denitrifier Method |
| Q92634979 | Methane and nitrous oxide temporal and spatial variability in two midwestern USA streams containing high nitrate concentrations |
| Q58391237 | Methane-hydrogen gas seeps, Zambales Ophiolite, Philippines: Deep or shallow origin? |
| Q36700424 | Methods for measuring denitrification: diverse approaches to a difficult problem |
| Q61470963 | Minimum energy requirements for desalination of brackish groundwater in the United States with comparison to international datasets |
| Q58391095 | Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer |
| Q58391190 | Mother Lode gold |
| Q57410186 | Multi-scale measurements and modeling of denitrification in streams with varying flow and nitrate concentration in the upper Mississippi River basin, USA |
| Q34145224 | Natural chlorate in the environment: application of a new IC-ESI/MS/MS method with a Cl¹⁸O₃-internal standard |
| Q57410188 | Nitrification and denitrification in a midwestern stream containing high nitrate: in situ assessment using tracers in dome-shaped incubation chambers |
| Q58391127 | Oxygen and Chlorine Isotopic Fractionation during Perchlorate Biodegradation: Laboratory Results and Implications for Forensics and Natural Attenuation Studies |
| Q38927934 | Oxygen isotopes in nitrate: new reference materials for 18O:17O:16O measurements and observations on nitrate-water equilibration. |
| Q44927041 | Oxygen isotopes in nitrite: analysis, calibration, and equilibration |
| Q44918542 | Perchlorate in pleistocene and holocene groundwater in north-central New Mexico. |
| Q44915316 | Perchlorate isotope forensics |
| Q63884842 | Preliminary assessment of stable nitrogen and oxygen isotopic composition of USGS51 and USGS52 nitrous oxide reference gases and perspectives on calibration needs |
| Q91475772 | Preliminary assessment of stable nitrogen and oxygen isotopic composition of USGS51 and USGS52 nitrous oxide reference gases and perspectives on calibration needs |
| Q58391215 | Radium isotope geochemistry of thermal waters, Yellowstone National Park, Wyoming, USA |
| Q51195177 | Regional patterns in the isotopic composition of natural and anthropogenic nitrate in groundwater, High Plains, U.S.A. |
| Q37122345 | Relating Carbon and Nitrogen Isotope Effects to Reaction Mechanisms during Aerobic or Anaerobic Degradation of RDX (Hexahydro-1,3,5-Trinitro-1,3,5-Triazine) by Pure Bacterial Cultures |
| Q58391226 | Reporting of nitrogen-isotope abundances (Technical Report) |
| Q58391034 | Response of deep groundwater to land use change in desert basins of the Trans-Pecos region, Texas, USA: Effects on infiltration, recharge, and nitrogen fluxes |
| Q45019555 | Role of Anaerobic Ammonium Oxidation (Anammox) in Nitrogen Removal from a Freshwater Aquifer |
| Q101406307 | Seasonal and Spatial Variation in the Location and Reactivity of a Nitrate‐Contaminated Groundwater Discharge Zone in a Lakebed |
| Q59567017 | Seasonality of nitrate sources and isotopic composition in the Upper Illinois River |
| Q58391108 | Simulated response of water quality in public supply wells to land use change |
| Q38875188 | Soil, plant, and terrain effects on natural perchlorate distribution in a desert landscape. |
| Q58391111 | Source and transport controls on the movement of nitrate to public supply wells in selected principal aquifers of the United States |
| Q58391053 | Spatial and temporal variation of stream chemistry associated with contrasting geology and land-use patterns in the Chesapeake Bay watershed—Summary of results from Smith Creek, Virginia; Upper Chester River, Maryland; Conewago Creek, Pennsylvania; |
| Q58391245 | Spectroscopic geochemical study of vanadiferous marine sediments of the Gibellini claims, southern Fish Creek Range, Eureka County, Nevada |
| Q62172876 | Stable Isotopes in Mid-Ocean Ridge Hydrothermal Systems: Interactions Between Fluids, Minerals, and Organisms |
| Q58391138 | Stable Isotopic Composition of Chlorine and Oxygen in Synthetic and Natural Perchlorate |
| Q39325266 | Stable isotope analyses of oxygen (18 O:17 O:16 O) and chlorine (37 Cl:35 Cl) in perchlorate: reference materials, calibrations, methods, and interferences |
| Q58869174 | Stable isotope evidence for an atmospheric origin of desert nitrate deposits in northern Chile and southern California, U.S.A |
| Q58391240 | Stable isotope investigation of gold quartz veins at the Oriental mine, Alleghany District, California |
| Q36343538 | Stable isotopic composition of perchlorate and nitrate accumulated in plants: Hydroponic experiments and field data |
| Q58391139 | Storage and transit time of chemicals in thick unsaturated zones under rangeland and irrigated cropland, High Plains, United States |
| Q57409099 | Strategic directions for U.S. Geological Survey water science, 2012-2022 - Observing, understanding, predicting, and delivering water science to the Nation |
| Q59848512 | THE FATE AND TRANSPORT OF DISSOLVED OXYGEN, INORGANIC NITROGEN AND ORGANIC CARBON DURING RECHARGE TO GROUNDWATER FROM A KETTLE LAKE ON CAPE COD, MA |
| Q58391158 | The fate of wastewater-derived nitrate in the subsurface of the Florida Keys: Key Colony Beach, Florida |
| Q93030909 | The influence of sample matrix on the accuracy of nitrite N and O isotope ratio analyses with the azide method |
| Q58391173 | Timescales for nitrate contamination of spring waters, northern Florida, USA |
| Q58391084 | TracerLPM (Version 1): An Excel® workbook for interpreting groundwater age distributions from environmental tracer data |
| Q45019187 | Tracing the Cycling and Fate of the Explosive 2,4,6-Trinitrotoluene in Coastal Marine Systems with a Stable Isotopic Tracer, (15)N-[TNT]. |
| Q63884627 | Tracing the cycling and fate of the munition, Hexahydro-1,3,5-trinitro-1,3,5-triazine in a simulated sandy coastal marine habitat with a stable isotopic tracer, 15N-[RDX] |
| Q57424756 | Tracking the fate of nitrate through pulse-flow wetlands: A mesocosm scale 15 N enrichment tracer study |
| Q44649475 | Two new organic reference materials for δ13C and δ15N measurements and a new value for the δ13C of NBS 22 oil |
| Q57409096 | U.S. Geological Survey Water science strategy--observing, understanding, predicting, and delivering water science to the nation |
| Q58391169 | Use of environmental tracers and isotopes to evaluate sources of water, nitrate, and uranium in an irrigated alluvial valley, Nebraska |
| Q58391065 | Variation in the terrestrial isotopic composition and atomic weight of argon (IUPAC Technical Report) |
| Q58391155 | Vertical Gradients in Water Chemistry and Age in the Southern High Plains Aquifer, Texas, 2002 |
| Q58391129 | Vertical gradients in water chemistry and age in the Northern High Plains Aquifer, Nebraska, 2003 |
| Q57410198 | Water-quality data from two agricultural drainage basins in northwestern Indiana and northeastern Illinois: I. Lagrangian and synoptic data, 1999-2002 |
| Q57410200 | Water-quality data from two agricultural drainage basins in northwestern Indiana and northeastern Illinois: II. diel data, 1999-2001 |
| Q57410202 | Water-quality data from two agricultural drainage basins in northwestern Indiana and northeastern Illinois: III. biweekly data, 2000-2002 |
| Q58391060 | Widespread occurrence of (per)chlorate in the Solar System |
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