World's Best Scientists 2026 revealed!
Brent E. Sleep

Brent E. Sleep

D-Index & Metrics

Environmental Sciences

D-Index
44
Citations
7485
World Ranking
6736
National Ranking
299

Brent E. Sleep 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 Brent E. Sleep 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: 165 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Brent E. Sleep 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 Brent E. Sleep 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: 44 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

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

Overview

Brent E. Sleep is affiliated with the University of Toronto in Canada. Their research primarily focuses on environmental science and engineering, with a significant emphasis on environmental remediation, groundwater flow, and contamination studies.

Their work covers several subfields, including environmental engineering, biomedical engineering, industrial and manufacturing engineering, water science and technology, and pollution. Key research topics addressed in their studies include environmental remediation with nanomaterials, groundwater flow and contamination, electrokinetic soil remediation techniques, advanced oxidation water treatment, geophysical and geoelectrical methods, landfill environmental impact studies, as well as microbial bioremediation and biosurfactants.

Some recent papers authored or co-authored by them are:

  • An experimental and modeling study of evapotranspiration from integrated green roof photovoltaic systems, 2020, Ecological Engineering
  • Sequential treatment of nitrate and phosphate in groundwater using a permeable reactive barrier system, 2021, Journal of Environmental Management
  • Effect of low permeability zone location on remediation of Cr(VI)-contaminated media by electrokinetics combined with a modified-zeolite barrier, 2021, Journal of Hazardous Materials
  • Two distinct Dehalobacter strains sequentially dechlorinate 1,1,1-trichloroethane and 1,1-dichloroethane at a field site treated with granular zero valent iron and guar gum, 2020, Water Research
  • Selective solvent filters for non-aqueous phase liquid separation from water, 2020, Scientific Reports

Frequent co-authors include:

  • Hardiljeet K. Boparai
  • Georgina C. Kalogerakis
  • Elizabeth A. Edwards
  • Denis M. O'Carroll
  • Ariel Nunez Garcia

Common publication venues for their research are:

  • ARPHA Conference Abstracts
  • Journal of Hazardous Materials
  • Water Research
  • Journal of Hydrology
  • Journal of Contaminant Hydrology

Brent E. Sleep's research integrates multiple engineering disciplines and environmental science to address contamination and remediation challenges, particularly in groundwater and soil. Their approach often involves novel treatment methods combining chemical, biological, and physical processes, reflecting a multidisciplinary expertise applicable to environmental management and sustainability.

Best Publications

  • Nanoscale zero valent iron and bimetallic particles for contaminated site remediation

    Denis O’Carroll;Denis O’Carroll;Brent Sleep;Magdalena Krol;Hardiljeet Boparai

  • Modeling the transport of volatile organics in variably saturated media

    B. E. Sleep;J. F. Sykes

  • Stable carbon isotope evidence for intrinsic bioremediation of tetrachloroethene and trichloroethene at area 6, Dover Air Force Base

    B Sherwood Lollar;G F Slater;B Sleep;M Witt

  • Compositional simulation of groundwater contamination by organic compounds: 1. Model development and verification

    Brent E. Sleep;Jonathan F. Sykes

  • Variability in carbon isotopic fractionation during biodegradation of chlorinated ethenes: implications for field applications.

    Gregory F. Slater;Barbara Sherwood Lollar;Brent E. Sleep;Elizabeth A. Edwards

  • Contrasting carbon isotope fractionation during biodegradation of trichloroethylene and toluene: Implications for intrinsic bioremediation

    B. Sherwood Lollar;G.F. Slater;J. Ahad;B. Sleep

  • Carbon and hydrogen isotopic fractionation during anaerobic biodegradation of benzene.

    Silvia A. Mancini;Ania C. Ulrich;Georges Lacrampe-Couloume;Brent Sleep

  • The effect of temperature on capillary pressure‐saturation relationships for air‐water and perchloroethylene‐water systems

    Hugh Y. She;Brent E. Sleep

  • Carbon isotope effects resulting from equilibrium sorption of dissolved VOCs.

    G. F. Slater;J. M. E. Ahad;B. Sherwood Lollar;‡ and R. Allen-King

  • Carbon Isotope Fractionation during Anaerobic Biodegradation of Toluene: Implications for Intrinsic Bioremediation

    Jason M. E. Ahad;Barbara Sherwood Lollar;Elizabeth A. Edwards;Greg F. Slater

  • Characterization of nZVI Mobility in a Field Scale Test

    Chris M. Kocur;Ahmed I. Chowdhury;Nataphan Sakulchaicharoen;Hardiljeet K. Boparai

  • Impact of nZVI stability on mobility in porous media.

    Chris M. Kocur;Denis M. O'Carroll;Brent E. Sleep

  • Long-Term Field Study of Microbial Community and Dechlorinating Activity Following Carboxymethyl Cellulose-Stabilized Nanoscale Zero-Valent Iron Injection

    Chris M. D. Kocur;Line Lomheim;Olivia Molenda;Kela P. Weber

  • Biological enhancement of tetrachloroethene dissolution and associated microbial community changes.

    Brent E. Sleep;David J. Seepersad;Kaiguo Mo;Christina M. Heidorn

  • Quantifying chlorinated ethene degradation during reductive dechlorination at Kelly AFB using stable carbon isotopes

    Penny L. Morrill;Georges Lacrampe-Couloume;Gregory F. Slater;Gregory F. Slater;Brent E. Sleep

  • A Field-Validated Model for In Situ Transport of Polymer-Stabilized nZVI and Implications for Subsurface Injection

    Magdalena M. Krol;Andrew J. Oleniuk;Chris M. Kocur;Brent E. Sleep

  • Knudsen diffusion, gas permeability, and water content in an unconsolidated porous medium

    Stefan A. Reinecke;Brent E. Sleep

  • Effects of Biomass Growth on Gas Pressure Drop in Biofilters

    Fernando Morgan-Sagastume;Brent E. Sleep;D. Grant Allen

  • Contributions of Abiotic and Biotic Dechlorination Following Carboxymethyl Cellulose Stabilized Nanoscale Zero Valent Iron Injection.

    Chris M. D. Kocur;Line Lomheim;Hardiljeet K. Boparai;Ahmed I. A. Chowdhury

  • Compositional simulation of groundwater contamination by organic compounds: 2. Model applications

    Brent E. Sleep;Jonathan F. Sykes

Frequent Co-Authors

Denis M. O'Carroll
Denis M. O'Carroll University of New South Wales
Elizabeth A. Edwards
Elizabeth A. Edwards University of Toronto
Barbara Sherwood Lollar
Barbara Sherwood Lollar University of Toronto
Richard L. Johnson
Richard L. Johnson Oregon Health & Science University
David M. Bagley
David M. Bagley University of Wyoming
Charles J. Werth
Charles J. Werth The University of Texas at Austin
Jason I. Gerhard
Jason I. Gerhard University of Western Ontario
Georges Lacrampe-Couloume
Georges Lacrampe-Couloume University of Toronto
Bernard H. Kueper
Bernard H. Kueper Queen's University
Hongbin Zhan
Hongbin Zhan Texas A&M University

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