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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 63 8470 7689 482 434 175 13283

Jan Dolfing publications per year

The chart shows the history of publications by Jan Dolfing between 1974 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jan Dolfing published across 53 years, from 1974 to 2026, averaging 4.4 papers a year. Output peaked at 21 publications in 2021. 8 of the 234 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1974 to 2026. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2021. 1974: 1 publication 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 1 publication 1980: 0 publications 1981: 0 publications 1982: 1 publication 1983: 2 publications 1984: 2 publications 1985: 5 publications 1986: 2 publications 1987: 2 publications 1988: 1 publication 1989: 1 publication 1990: 3 publications 1991: 3 publications 1992: 2 publications 1993: 3 publications 1994: 4 publications 1995: 7 publications 1996: 6 publications 1997: 0 publications 1998: 4 publications 1999: 7 publications 2000: 4 publications 2001: 4 publications 2002: 7 publications 2003: 3 publications 2004: 5 publications 2005: 1 publication 2006: 2 publications 2007: 3 publications 2008: 4 publications 2009: 3 publications 2010: 5 publications 2011: 8 publications 2012: 3 publications 2013: 9 publications 2014: 6 publications 2015: 8 publications 2016: 8 publications 2017: 9 publications 2018: 8 publications 2019: 14 publications 2020: 11 publications 2021: 21 publications 2022: 7 publications 2023: 9 publications 2024: 7 publications 2025: 6 publications 2026: 2 publications
1974 2026

234 publications in total across all disciplines

View publications per year as a table
Jan Dolfing: publications per year, 1974 to 2026
Year Publications
1974 1
1975 0
1976 0
1977 0
1978 0
1979 1
1980 0
1981 0
1982 1
1983 2
1984 2
1985 5
1986 2
1987 2
1988 1
1989 1
1990 3
1991 3
1992 2
1993 3
1994 4
1995 7
1996 6
1997 0
1998 4
1999 7
2000 4
2001 4
2002 7
2003 3
2004 5
2005 1
2006 2
2007 3
2008 4
2009 3
2010 5
2011 8
2012 3
2013 9
2014 6
2015 8
2016 8
2017 9
2018 8
2019 14
2020 11
2021 21
2022 7
2023 9
2024 7
2025 6
2026 2
Total 234
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Jan Dolfing 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 Jan Dolfing 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, 161–180 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: 175 publications — 23rd percentile

23% 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 1,350 175
181–200 1,344
201–220 1,281
221–240 1,216
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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Jan Dolfing 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 Jan Dolfing 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, 62–63 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: 63 D-Index — 54th percentile

54% 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 63
64–65 731
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

Jan Dolfing is affiliated with Northumbria University in the United Kingdom and has a significant body of research primarily focused on Environmental Science.

Their work covers several subfields within Environmental Science, including:

  • Pollution
  • Ecology
  • Molecular Biology
  • Environmental Engineering
  • Soil Science

Dolfing's main topics of research include:

  • Microbial Community Ecology and Physiology
  • Wastewater Treatment and Nitrogen Removal
  • Anaerobic Digestion and Biogas Production
  • Microbial Fuel Cells and Bioremediation
  • Soil Carbon and Nitrogen Dynamics
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Biofuel production and bioconversion

Their recent papers illustrate the range of research interests and collaboration within the field:

  • "Important ecophysiological roles of non-dominant Actinobacteria in plant residue decomposition, especially in less fertile soils" (2021, Microbiome)
  • "Syntrophic propionate-oxidizing bacteria in methanogenic systems" (2021, FEMS Microbiology Reviews)
  • "Stable biogas production from single-stage anaerobic digestion of food waste" (2020, Applied Energy)
  • "Using Microbial Aggregates to Entrap Aqueous Phosphorus" (2020, Trends in biotechnology)
  • "Occurrence and removal of micropollutants in full-scale aerobic, anaerobic and facultative wastewater treatment plants in Brazil" (2021, Journal of Environmental Management)

Dolfing frequently publishes in these venues:

  • Water Research
  • Bioresource Technology
  • Environmental Science & Technology
  • Journal of Environmental Management
  • Microbial Biotechnology

Collaborations with frequent coauthors are a part of Dolfing's research output, including:

  • Yonghong Wu
  • Ying Xu
  • Pengfei Sun
  • Bruce E. Rittmann
  • Youzhi Feng

Best Publications

  • Evidence of Increasing Antibiotic Resistance Gene Abundances in Archived Soils since 1940

    Charles W. Knapp;Jan Dolfing;Phillip A. I. Ehlert;David W. Graham

  • Nitrifier denitrification as a distinct and significant source of nitrous oxide from soil

    Dorien M. Kool;Jan Dolfing;Nicole Wrage;Jan Willem Van Groenigen

  • Trends in Global Nitrous Oxide Emissions from Animal Production Systems

    O. Oenema;N. Wrage;N. Wrage;G.L. Velthof;J.W. van Groenigen

  • Exocellular electron transfer in anaerobic microbial communities.

    Alfons J. M. Stams;Frank A. M. De Bok;Caroline M. Plugge;Miriam H. A. Van Eekert

  • Determination of the internal chemical energy of wastewater

    Elizabeth Heidrich;Thomas Curtis;Jan Dolfing

  • Performance of a pilot scale microbial electrolysis cell fed on domestic wastewater at ambient temperatures for a 12 month period.

    Elizabeth S. Heidrich;Stephen R. Edwards;Jan Dolfing;Sarah E. Cotterill

  • Biodegradation of perfluorinated compounds.

    John R. Parsons;Monica Sáez;Jan Dolfing;Pim de Voogt

  • Production of hydrogen from domestic wastewater in a pilot-scale microbial electrolysis cell.

    Elizabeth Heidrich;Jan Dolfing;Keith Scott;Stephen Edwards

  • Gibbs free energy of formation of halogenated aromatic compounds and their potential role as electron acceptors in anaerobic environments

    J. Dolfing;B.K. Harrison

  • Important ecophysiological roles of non-dominant Actinobacteria in plant residue decomposition, especially in less fertile soils

    Yuanyuan Bao;Jan Dolfing;Zhiying Guo;Ruirui Chen

  • Isolation and characterization of a bacterium that mineralizes toluene in the absence of molecular oxygen.

    J. Dolfing;J. Zeyer;P. Binder-Eicher;R. P. Schwarzenbach

  • Effect of Ca on the solubility and molecular size distribution of DOC and Cu binding in soil solution samples

    Paul F. A. M. Römkens;Jan Dolfing

  • Thermodynamic constraints on methanogenic crude oil biodegradation

    Jan Dolfing;Stephen R Larter;Ian M Head

  • Reductive dechlorination of 3-chlorobenzoate is coupled to ATP production and growth in an anaerobic bacterium, strain DCB-1

    Jan Dolfing

  • Inhibitory effects of copper on bacteria related to the free ion concentration.

    L. P. T. M. Zevenhuizen;J. Dolfing;E. J. Eshuis;Ineke J. Scholten-Koerselman

  • A review on the bioenergetics of anaerobic microbial metabolism close to the thermodynamic limits and its implications for digestion applications.

    Ling Leng;Peixian Yang;Shubham Singh;Huichuan Zhuang

  • Activity measurements as a tool to characterize the microbial composition of methanogenic environments

    J. Dolfing;W.G.B.M. Bloemen

  • Comparison of methane production rate and coenzyme F420 content of methanogenic consortia in anaerobic granular sludge

    Jan Dolfing;Jan-Willem Mulder

  • Chemical and bacteriological composition of granular methanogenic sludge

    J. Dolfing;A.R.W. Griffioen;A.R.W. van Neerven;L.P.T.M. Zevenhuizen

  • Quantification of syntrophic acetate-oxidizing microbial communities in biogas processes.

    Maria Westerholm;Jan Dolfing;Angela Sherry;Neil D. Gray

  • Cometabolic degradation of trichloroethylene by Pseudomonas cepacia G4 in a chemostat with toluene as the primary substrate.

    A. S. Landa;E. M. Sipkema;J. Weijma;A. A. C. M. Beenackers

Frequent Co-Authors

Thomas P. Curtis
Thomas P. Curtis Newcastle University
Peter Kuikman
Peter Kuikman Wageningen University & Research
Ian M. Head
Ian M. Head Newcastle University
David W. Graham
David W. Graham Newcastle University
Oene Oenema
Oene Oenema Wageningen University & Research
Dick B. Janssen
Dick B. Janssen University of Groningen
James M. Tiedje
James M. Tiedje Michigan State University
Gerard L. Velthof
Gerard L. Velthof Wageningen University & Research
Youzhi Feng
Youzhi Feng Chinese Academy of Sciences
Jan Willem van Groenigen
Jan Willem van Groenigen Wageningen University & Research

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