World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
75
Citations
25624
World Ranking
695
National Ranking
334

Research.com Recognitions

  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America

Overview

John Karl Böhlke is affiliated with the United States Geological Survey in the United States. Their research activity is concentrated in Environmental Science, with particular emphasis on subfields such as Geochemistry and Petrology, Health, Toxicology and Mutagenesis, Ecology, Environmental Chemistry, and Global and Planetary Change.

The scientist's work covers several main topics, including:

  • Groundwater and Isotope Geochemistry
  • Isotope Analysis in Ecology
  • Soil and Water Nutrient Dynamics
  • Chemical Analysis and Environmental Impact
  • Water Treatment and Disinfection
  • Mass Spectrometry Techniques and Applications
  • Groundwater flow and contamination studies

John Karl Böhlke has contributed to multiple research papers published in well-known scientific venues. Selected recent papers include:

  • "Standard atomic weights of the elements 2021 (IUPAC Technical Report)," 2022, published in Pure and Applied Chemistry
  • "Minimum requirements for publishing hydrogen, carbon, nitrogen, oxygen and sulfur stable-isotope delta results (IUPAC Technical Report)," 2022, published in Pure and Applied Chemistry
  • "Exploring the Potential of Electrospray-Orbitrap for Stable Isotope Analysis Using Nitrate as a Model," 2021, published in Analytical Chemistry
  • "Determination of vadose zone and saturated zone nitrate lag times using long-term groundwater monitoring data and statistical machine learning," 2021, published in Hydrology and earth system sciences
  • "DGMETA (version 1)-Dissolved gas modeling and environmental tracer analysis computer program," 2020, published in Techniques and methods

Frequent publication venues in which Böhlke has appeared include:

  • Pure and Applied Chemistry
  • Environmental Monitoring and Assessment
  • IUPAC Standards Online
  • Analytical Chemistry
  • Hydrology and earth system sciences

The scientist has collaborated frequently with several coauthors, including:

  • S. Mroczkowski
  • Tyler B. Coplen
  • Philip J. H. Dunn
  • Manfred Gröning
  • Harro A. J. Meijer

John Karl Böhlke is a Fellow of the Geological Society of America, indicating recognition within the professional community.

Best Publications

  • A Bacterial Method for the Nitrogen Isotopic Analysis of Nitrate in Seawater and Freshwater

    D.M. Sigman;K.L. Casciotti;M. Andreani;C. Barford

  • Denitrification across landscapes and waterscapes: a synthesis.

    Sybil P. Seitzinger;John A. Harrison;John K. Bohlke;A. F. Bouwman

  • Measurement of the Oxygen Isotopic Composition of Nitrate in Seawater and Freshwater Using the Denitrifier Method

    K L Casciotti;D M Sigman;M Galanter Hastings;J K Böhlke

  • Atomic weights of the elements. Review 2000 (IUPAC Technical Report)

    John R. de Laeter;John Karl Böhlke;P. De Bièvre;H. Hidaka

  • METHODS FOR MEASURING DENITRIFICATION: DIVERSE APPROACHES TO A DIFFICULT PROBLEM

    Peter M. Groffman;Mark A. Altabet;John K. Bohlke;Klaus Butterbach-Bahl

  • 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

    J. K. Böhlke;J. M. Denver

  • Groundwater recharge and agricultural contamination

    Unknown

  • Isotope-abundance variations of selected elements (IUPAC Technical Report)

    Tyler B. Coplen;John Karl Böhlke;P. De Bièvre;T. Ding

  • Oxygen isotopes in nitrate: new reference materials for 18O:17O:16O measurements and observations on nitrate-water equilibration.

    J. K. Böhlke;S. J. Mroczkowski;T. B. Coplen

  • Atomic weights of the elements 2011 (IUPAC Technical Report)

    Michael E. Wieser;Norman Holden;Tyler B. Coplen;John K. Böhlke

  • Methane-hydrogen gas seeps, zambales ophiolite, philippines: deep or shallow origin?

    T.A. Abrajano;N.C. Sturchio;J.K. Bohlke;G.L. Lyon

  • Hyporheic zone denitrification: Controls on effective reaction depth and contribution to whole-stream mass balance

    Judson W. Harvey;John Karl Böhlke;Mary A. Voytek;Durelle Scott

  • Compilation of minimum and maximum isotope ratios of selected elements in naturally occurring terrestrial materials and reagents

    T.B. Coplen;J.A. Hopple;J.K. Böhlke;H.S. Peiser

  • 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

    Greg Michalski;J.K. Böhlke;Mark Thiemens

  • Isotopic Compositions of the Elements, 2001

    J. K. Böhlke;J. R. de Laeter;P. De Bièvre;H. Hidaka

  • Denitrification in the recharge area and discharge area of a transient agricultural nitrate plume in a glacial outwash sand aquifer, Minnesota

    J.K. Böhlke;R. Wanty;M. Tuttle;G. Delin

  • Determining Timescales for Groundwater Flow and Solute Transport

    Peter G. Cook;John-Karl Böhlke

  • Two new organic reference materials for δ13C and δ15N measurements and a new value for the δ13C of NBS 22 oil

    Haiping Qi;Tyler B. Coplen;Heike Geilmann;Willi A. Brand

  • Stable isotope evidence for an atmospheric origin of desert nitrate deposits in northern Chile and southern California, U.S.A.

    J.K. Böhlke;G.E. Ericksen;K. Revesz

  • Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes

    Richard B. Alexander;John Karl Böhlke;Elizabeth W. Boyer;Mark B. David

  • Stable isotopes in mid-ocean ridge hydrothermal systems: Interactions between fluids, minerals, and organisms

    Wayne C. Shanks;John K. Böhlke;Robert R. Seal

  • Ammonium transport and reaction in contaminated groundwater: Application of isotope tracers and isotope fractionation studies

    J. K. Böhlke;Richard L. Smith;Daniel N. Miller;Daniel N. Miller

  • Groundwater residence times in Shenandoah National Park, Blue Ridge Mountains, Virginia, USA: a multi-tracer approach

    L.N. Plummer;E. Busenberg;J.K. Böhlke;D.L. Nelms

Frequent Co-Authors

Neil C. Sturchio
Neil C. Sturchio University of Delaware
Baohua Gu
Baohua Gu Oak Ridge National Laboratory
Craig R. Tobias
Craig R. Tobias University of Connecticut
Tyler B. Coplen
Tyler B. Coplen United States Geological Survey
Peter B. McMahon
Peter B. McMahon United States Geological Survey
Judson W. Harvey
Judson W. Harvey United States Geological Survey
Mary A. Voytek
Mary A. Voytek National Aeronautics and Space Administration
Alfonso F. Davila
Alfonso F. Davila Ames Research Center
Eurybiades Busenberg
Eurybiades Busenberg United States Geological Survey
Karen L. Casciotti
Karen L. Casciotti Stanford University

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