World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
50
Citations
17020
World Ranking
4855
National Ranking
1785

Detlef R.U. Knappe publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Detlef R.U. Knappe sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 128 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Detlef R.U. Knappe D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Detlef R.U. Knappe sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 50 D-Index — 50th percentile

50% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Detlef R.U. Knappe is affiliated with North Carolina State University in the United States. Their research primarily focuses on Environmental Science, with a significant emphasis on Environmental Chemistry and Health, Toxicology and Mutagenesis. Other subfields of their work include Atmospheric Science, Pollution, and Mechanical Engineering.

The main topics of Knappe's research encompass:

  • Per- and polyfluoroalkyl substances research
  • Toxic Organic Pollutants Impact
  • Atmospheric chemistry and aerosols
  • Air Quality and Health Impacts
  • Water Treatment and Disinfection
  • Carbon Dioxide Capture Technologies
  • Health, Environment, Cognitive Aging

Knappe has published extensively in several prominent scientific journals. Frequent publication venues include:

  • Environmental Science & Technology
  • Environmental Health Perspectives
  • Water Research
  • Environmental Science Water Research & Technology
  • The Science of The Total Environment

Recent papers authored or coauthored by Knappe include:

  • "Per- and polyfluoroalkyl substances in the environment," 2022, Science
  • "Scientific Basis for Managing PFAS as a Chemical Class," 2020, Environmental Science & Technology Letters
  • "Measurement of Novel, Drinking Water-Associated PFAS in Blood from Adults and Children in Wilmington, North Carolina," 2020, Environmental Health Perspectives
  • "Per- and Polyfluoroalkyl Substance (PFAS) Transport from Groundwater to Streams near a PFAS Manufacturing Facility in North Carolina, USA," 2021, Environmental Science & Technology
  • "Elevated levels of per- and polyfluoroalkyl substances in Cape Fear River Striped Bass (Morone saxatilis) are associated with biomarkers of altered immune and liver function," 2020, Environment International

Knappe frequently collaborates with other researchers, including:

  • Jane A. Hoppin
  • Nadine Kotlarz
  • James McCord
  • Mark J. Strynar
  • David N. Collier

Best Publications

  • Transport and release of chemicals from plastics to the environment and to wildlife

    Emma L. Teuten;Jovita M. Saquing;Detlef R. U. Knappe;Morton A. Barlaz

  • Per- and polyfluoroalkyl substances in the environment

    Unknown

  • Effects of activated carbon surface chemistry and pore structure on the adsorption of organic contaminants from aqueous solution

    Lei Li;Patricia A. Quinlivan;Detlef R.U. Knappe

  • Legacy and Emerging Perfluoroalkyl Substances Are Important Drinking Water Contaminants in the Cape Fear River Watershed of North Carolina

    Mei Sun;Mei Sun;Elisa Arevalo;Mark Strynar;Andrew Lindstrom

  • Scientific Basis for Managing PFAS as a Chemical Class.

    Carol F Kwiatkowski;David Q Andrews;Linda S Birnbaum;Thomas A Bruton

  • Intraparticle diffusion and adsorption of arsenate onto granular ferric hydroxide (GFH).

    Mohammad Badruzzaman;Paul Westerhoff;Detlef R U Knappe

  • Effects of activated carbon characteristics on the simultaneous adsorption of aqueous organic micropollutants and natural organic matter

    Patricia A. Quinlivan;Lei Li;Detlef R.U. Knappe

  • Removal of emerging contaminants of concern by alternative adsorbents.

    Alfred Rossner;Shane A. Snyder;Detlef R.U. Knappe

  • Environmental Comparison of Biochar and Activated Carbon for Tertiary Wastewater Treatment

    Kyle Andrew Thompson;Kyle Koyu Shimabuku;Joshua P. Kearns;Joshua P. Kearns;Detlef R. U. Knappe

  • A Review of Chemical Warfare Agent Simulants for the Study of Environmental Behavior

    Shannon L. Bartelt-Hunt;Detlef R.U. Knappe;Morton A. Barlaz

  • Simultaneous adsorption of MIB and NOM onto activated carbon: II. Competitive effects

    G Newcombe;J Morrison;C Hepplewhite;D.R.U Knappe

  • Characterization of natural organic matter adsorption in granular activated carbon adsorbers.

    Silvana Velten;Detlef R.U. Knappe;Jacqueline Traber;Hans-Peter Kaiser

  • Recently Detected Drinking Water Contaminants: GenX and Other Per- and Polyfluoroalkyl Ether Acids

    Zachary R. Hopkins;Mei Sun;Jamie C. DeWitt;Detlef R.U. Knappe

  • Measurement of Novel, Drinking Water-Associated PFAS in Blood from Adults and Children in Wilmington, North Carolina.

    Nadine Kotlarz;James McCord;David Collier;David Collier;C. Suzanne Lea

  • Transformation kinetics of biochemically active compounds in low-pressure UV photolysis and UV/H(2)O(2) advanced oxidation processes.

    Carolina Baeza;Detlef R.U. Knappe

  • Predicting the Capacity of Powdered Activated Carbon for Trace Organic Compounds in Natural Waters

    Detlef R. U. Knappe;Yoshihiko Matsui;Vernon L. Snoeyink;Pascal Roche

  • 2,4-D adsorption to biochars: Effect of preparation conditions on equilibrium adsorption capacity and comparison with commercial activated carbon literature data

    J.P. Kearns;L.S. Wellborn;R.S. Summers;D.R.U. Knappe

  • Full- and pilot-scale GAC adsorption of organic micropollutants

    Anthony M. Kennedy;Allison M. Reinert;Detlef R.U. Knappe;Imma Ferrer

  • Fate of Per- and Polyfluoroalkyl Ether Acids in the Total Oxidizable Precursor Assay and Implications for the Analysis of Impacted Water.

    Chuhui Zhang;Zachary R. Hopkins;James McCord;Mark J. Strynar

  • Does Granular Activated Carbon with Chlorination Produce Safer Drinking Water? From Disinfection Byproducts and Total Organic Halogen to Calculated Toxicity.

    Amy A Cuthbertson;Susana Y Kimura;Susana Y Kimura;Hannah K Liberatore;R Scott Summers

  • Removal of highly polar micropollutants from wastewater by powdered activated carbon

    Lubomira Kovalova;Lubomira Kovalova;Detlef R. U. Knappe;Kai Lehnberg;Christian Kazner

Frequent Co-Authors

Morton A. Barlaz
Morton A. Barlaz North Carolina State University
R. Scott Summers
R. Scott Summers University of Colorado Boulder
Urs von Gunten
Urs von Gunten Swiss Federal Institute of Aquatic Science and Technology
Vernon L. Snoeyink
Vernon L. Snoeyink University of Illinois at Urbana-Champaign
Mark J. Strynar
Mark J. Strynar Environmental Protection Agency
Juliane Hollender
Juliane Hollender Swiss Federal Institute of Aquatic Science and Technology
Yoshihiko Matsui
Yoshihiko Matsui Hokkaido University
Erin S. Baker
Erin S. Baker University of North Carolina at Chapel Hill
Susan D. Richardson
Susan D. Richardson University of South Carolina
Jacob L. Jones
Jacob L. Jones North Carolina State University

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