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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 65 7848 7118 197 177 234 12023

John V. Headley publications per year

The chart shows the history of publications by John V. Headley between 1982 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John V. Headley published across 45 years, from 1982 to 2026, averaging 6.5 papers a year. Output peaked at 18 publications in 2002. 9 of the 291 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1982 to 2026. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2002. 1982: 2 publications 1983: 0 publications 1984: 0 publications 1985: 1 publication 1986: 0 publications 1987: 1 publication 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 2 publications 1993: 0 publications 1994: 3 publications 1995: 4 publications 1996: 6 publications 1997: 5 publications 1998: 4 publications 1999: 5 publications 2000: 7 publications 2001: 4 publications 2002: 18 publications 2003: 8 publications 2004: 9 publications 2005: 8 publications 2006: 6 publications 2007: 7 publications 2008: 10 publications 2009: 14 publications 2010: 13 publications 2011: 10 publications 2012: 6 publications 2013: 12 publications 2014: 14 publications 2015: 10 publications 2016: 12 publications 2017: 14 publications 2018: 15 publications 2019: 6 publications 2020: 6 publications 2021: 8 publications 2022: 7 publications 2023: 9 publications 2024: 16 publications 2025: 8 publications 2026: 1 publication
1982 2026

291 publications in total across all disciplines

View publications per year as a table
John V. Headley: publications per year, 1982 to 2026
Year Publications
1982 2
1983 0
1984 0
1985 1
1986 0
1987 1
1988 0
1989 0
1990 0
1991 0
1992 2
1993 0
1994 3
1995 4
1996 6
1997 5
1998 4
1999 5
2000 7
2001 4
2002 18
2003 8
2004 9
2005 8
2006 6
2007 7
2008 10
2009 14
2010 13
2011 10
2012 6
2013 12
2014 14
2015 10
2016 12
2017 14
2018 15
2019 6
2020 6
2021 8
2022 7
2023 9
2024 16
2025 8
2026 1
Total 291
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John V. Headley publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where John V. Headley sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 221–240 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 234 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216 234
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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John V. Headley D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where John V. Headley sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 64–65 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 65 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731 65
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

John V. Headley is affiliated with Environment and Climate Change Canada. Their research primarily focuses on various aspects of petroleum processing and analysis, hydrocarbon exploration, and enhanced oil recovery techniques. Their work also touches on topics such as toxic organic pollutants impact, microbial bioremediation and biosurfactants, atmospheric and environmental gas dynamics, and fish ecology and management studies.

Their contributions span multiple fields of study, notably engineering, chemistry, and environmental science. Subfields prominently represented in their work include analytical chemistry, mechanics of materials, ocean engineering, health, toxicology and mutagenesis, and pollution.

Headley has published extensively in several scholarly venues. Frequent publication outlets include:

  • The Science of The Total Environment
  • SSRN Electronic Journal
  • Chemosphere
  • Environmental Pollution
  • Environmental Science & Technology

Collaboration is a key aspect of their research, with frequent coauthors including Ian J. Vander Meulen, Kerry M. Peru, Dena W. McMartin, Jason M. E. Ahad, and Richard Frank.

Among their recent papers are the following:

  • "Advances in Distinguishing Groundwater Influenced by Oil Sands Process-Affected Water (OSPW) from Natural Bitumen-Influenced Groundwaters," 2020, Environmental Science & Technology
  • "Molecular profiles of naphthenic acid fraction compounds from mine lease wetlands in the Athabasca Oil Sands Region," 2021, Chemosphere
  • "Distinguishing Natural from Anthropogenic Sources of Acid Extractable Organics in Groundwater near Oil Sands Tailings Ponds," 2020, Environmental Science & Technology
  • "Treatment of oil sands process affected waters by constructed wetlands: Evaluation of designs and plant types," 2021, The Science of The Total Environment
  • "Characterization of naphthenic acid fraction compounds in water from Athabasca oil sands wetlands by Orbitrap high-resolution mass spectrometry," 2021, The Science of The Total Environment

Best Publications

  • Widespread Use and Frequent Detection of Neonicotinoid Insecticides in Wetlands of Canada's Prairie Pothole Region

    Anson R. Main;John V. Headley;Kerry M. Peru;Nicole L. Michel

  • A review of the occurrence and fate of naphthenic acids in aquatic environments.

    John V Headley;Dena W McMartin

  • In situ bioremediation of naphthenic acids contaminated tailing pond waters in the athabasca oil sands region--demonstrated field studies and plausible options: a review.

    E K Quagraine;H G Peterson;J V Headley

  • Human Colon Microbiota Transform Polycyclic Aromatic Hydrocarbons to Estrogenic Metabolites

    Tom Van de Wiele;Lynn Vanhaecke;Charlotte Boeckaert;Kerry Peru

  • Toxicity assessment of collected fractions from an extracted naphthenic acid mixture

    Richard A. Frank;Richard Kavanagh;B. Kent Burnison;Gilles Arsenault

  • Effect of Carboxylic Acid Content on the Acute Toxicity of Oil Sands Naphthenic Acids

    Richard A. Frank;Katharina Fischer;Richard Kavanagh;B. Kent Burnison

  • Athabasca oil sands process water: characterization by atmospheric pressure photoionization and electrospray ionization fourier transform ion cyclotron resonance mass spectrometry.

    Mark P. Barrow;Matthias Witt;John V. Headley;Kerry M. Peru

  • Chitosan-glutaraldehyde copolymers and their sorption properties

    Louis Poon;Lee D. Wilson;John V. Headley

  • Mass spectrometric characterization of naphthenic acids in environmental samples: A review

    John V. Headley;Kerry M. Peru;Mark P. Barrow

  • Rates of sorption and partitioning of contaminants in river biofilm

    John V. Headley;Juergen Gandrass;Juergen Kuballa;Kerry M. Peru

  • Advances in mass spectrometric characterization of naphthenic acids fraction compounds in oil sands environmental samples and crude oil—A review

    John V. Headley;Kerry M. Peru;Mark P. Barrow

  • Preliminary fingerprinting of Athabasca oil sands polar organics in environmental samples using electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry

    John V. Headley;Mark P. Barrow;Kerry M. Peru;Bradley D. Fahlman

  • Profiling oil sands mixtures from industrial developments and natural groundwaters for source identification.

    Richard A. Frank;James W. Roy;Greg Bickerton;Steve J. Rowland

  • Determination of Dissolved Naphthenic Acids in Natural Waters by Using Negative-Ion Electrospray Mass Spectrometry

    John V. Headley;Kerry M. Peru;Dena W. Mcmartin;Marcus Winkler

  • Toxicity of naphthenic acid fraction components extracted from fresh and aged oil sands process-affected waters, and commercial naphthenic acid mixtures, to fathead minnow (Pimephales promelas) embryos

    Julie R. Marentette;Richard A. Frank;Adrienne J. Bartlett;Patricia L. Gillis

  • Comparison of high- and low-resolution electrospray ionization mass spectrometry for the analysis of naphthenic acid mixtures in oil sands process water.

    Jonathan W. Martin;Xiumei Han;Kerry M. Peru;John V. Headley

  • Adsorption properties of cross-linked cellulose-epichlorohydrin polymers in aqueous solution.

    Inimfon A. Udoetok;Raquel M. Dimmick;Lee D. Wilson;John V. Headley

  • Comparative chronic toxicity of imidacloprid, clothianidin, and thiamethoxam to Chironomus dilutus and estimation of toxic equivalency factors.

    Michael C. Cavallaro;Christy A. Morrissey;John V. Headley;Kerry M. Peru

  • Data Visualization for the Characterization of Naphthenic Acids within Petroleum Samples

    Mark P. Barrow;John V. Headley;Kerry M. Peru;Peter J. Derrick

  • Microbial exopolymers provide a mechanism for bioaccumulation of contaminants.

    Gideon M. Wolfaardt;John R. Lawrence;John V. Headley;Richard D. Robarts

  • Chemical fingerprinting of naphthenic acids and oil sands process waters—A review of analytical methods for environmental samples

    J. V. Headley;K. M. Peru;M. H. Mohamed;R. A. Frank

Frequent Co-Authors

Kerry M. Peru
Kerry M. Peru Environment and Climate Change Canada
Lee D. Wilson
Lee D. Wilson University of Saskatchewan
Richard D. Robarts
Richard D. Robarts National Water Research Institute
Karsten Liber
Karsten Liber University of Saskatchewan
Alan G. Marshall
Alan G. Marshall Florida State University
Ryan P. Rodgers
Ryan P. Rodgers Florida State University
James J. Germida
James J. Germida University of Saskatchewan
Keith R. Solomon
Keith R. Solomon University of Guelph
Ajay K. Dalai
Ajay K. Dalai University of Saskatchewan
Frank X. Gu
Frank X. Gu University of Toronto

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