World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
42
Citations
6230
World Ranking
7453
National Ranking
335

Douw G. Steyn 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 Douw G. Steyn 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 146 publications — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Douw G. Steyn 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 Douw G. Steyn 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 42 D-Index — 25th percentile

25% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

Douw G. Steyn is affiliated with the University of British Columbia in Canada and has a research focus predominantly within the fields of Pharmacology, Toxicology, and Pharmaceutics as well as Medicine. Their work spans closely related subfields such as Pharmaceutical Science, Oncology, Pharmacology, Plant Science, and Molecular Biology.

The scientist's research topics cover a range of areas including advanced drug delivery systems, drug solubility and delivery systems, drug transport and resistance mechanisms, phytochemistry and the biological activity of medicinal plants, advancements in transdermal drug delivery, analytical methods in pharmaceuticals, and crystallization and solubility studies.

Steyn has published research in several notable venues. Frequent publication platforms include:

  • South African Journal of Botany
  • Journal of Herbmed Pharmacology
  • Drug Delivery Letters
  • Pharmaceutics
  • Journal of Pharmacological and Toxicological Methods

Their co-authorship network includes multiple collaborations, notably with Josias H. Hamman, Jan Steenekamp, Bianca Peterson, Hanna Svitina, and Wihan Pheiffer.

Recent publications showcase a variety of research themes and publication years:

  • "The Role of Functional Excipients in Solid Oral Dosage Forms to Overcome Poor Drug Dissolution and Bioavailability," 2020, Pharmaceutics
  • "Evaluating in vitro cytotoxic effects of Artemisia afra and Artemisia annua infusions against selected lung cancer cell lines," 2022, South African Journal of Botany
  • "Comparison of RPMI 2650 cell layers and excised sheep nasal epithelial tissues in terms of nasal drug delivery and immunocytochemistry properties," 2021, Journal of Pharmacological and Toxicological Methods
  • "Evaluation of Drug Permeation Enhancement by Using In Vitro and Ex Vivo Models," 2025, Pharmaceuticals
  • "Intranasal Insulin Delivery: Microparticle Formulations Consisting of Aloe vera Polysaccharides for Advanced Delivery across Excised Olfactory and Respiratory Nasal Epithelial Tissues," 2023, Applied Sciences

Best Publications

  • Simulation of surface urban heat islands under `ideal' conditions at night part 2: Diagnosis of causation

    T. R. Oke;G. T. Johnson;D. G. Steyn;I. D. Watson

  • The Detection of Mixed Layer Depth and Entrainment Zone Thickness from Lidar Backscatter Profiles

    Douw G. Steyn;M. Baldi;R. M. Hoff

  • A framework for evaluating regional-scale numerical photochemical modeling systems

    Robin Dennis;Tyler Fox;Montse Fuentes;Alice Gilliland

  • Evaluation and comparison of statistical forecast models for daily maximum ozone concentrations

    S.M. Robeson;S.M. Robeson;D.G. Steyn

  • Simulation of surface urban heat islands under ‘IDEAL’ conditions at night part 1: Theory and tests against field data

    G. T. Johnson;T. R. Oke;T. J. Lyons;D. G. Steyn

  • The calculation of view factors from fisheye‐lens photographs: Research note

    D.G. Steyn

  • The vertical chemical and meteorological structure of the boundary layer in the Lower Fraser Valley during Pacific '93

    K.L Hayden;K.G Anlauf;R.M Hoff;J.W Strapp

  • Urban Water Balance: 1. A Model for Daily Totals

    C. S. B. Grimmond;T. R. Oke;D. G. Steyn

  • The climatology of sea breezes on Sardinia

    M. Furberg;D. G. Steyn;M. Baldi

  • Turbulence Structure and Exchange Processes in an Alpine Valley: The Riviera Project

    Mathias W. Rotach;Pierluigi Calanca;Giovanni Graziani;Joachim Gurtz

  • An innovative land use regression model incorporating meteorology for exposure analysis

    Jason G. Su;Michael Brauer;Bruce Ainslie;Douw Steyn

  • Spatial And Temporal Variability Of Mixed-Layer Depth And Entrainment Zone Thickness

    P. Hägeli;D. G. Steyn;K. B. Strawbridge

  • Elevated ozone layers and vertical down-mixing over the Lower Fraser Valley, BC

    I.G. McKendry;D.G. Steyn;J. Lundgren;R.M. Hoff

  • A simple extension of the Louis method for rough surface layer modelling

    I. Uno;X M. Cai;D. G. Steyn;S. Emori

  • Diurnal variations of boundary-layer carbon dioxide in a coastal city—Observations and comparison with model results

    K.H. Reid;D.G. Steyn

  • Overview of tropospheric ozone in the Lower Fraser Valley, and the Pacific '93 field study

    D.G. Steyn;J.W. Bottenheim;R.B. Thomson

  • High Density Ozone Monitoring Using Gas Sensitive Semi-Conductor Sensors in the Lower Fraser Valley, British Columbia

    Mark Bart;David E Williams;Bruce Ainslie;Ian McKendry

  • Gap Winds in a Fjord. Part I: Observations and Numerical Simulation

    Peter L. Jackson;Douw G. Steyn

  • Nocturnal cleansing flows in a tributary valley

    Robert M. Banta;Paul B. Shepson;Paul B. Shepson;Jan.W. Bottenheim;Kurt G. Anlauf

  • Modelling internal boundary-layer development in a region with a complex coastline

    Ekaterina Batchvarova;Xiaoming Cai;Sven-Erik Gryning;Douw Steyn

  • TURBULENCE STRUCTURE AND EXCHANGE PROCESSES IN AN ALPINE VALLEY

    Mathias W. Rotach;Pierluigi Calanca;Giovanni Graziani;Joachim Gurtz

Frequent Co-Authors

Ian G. McKendry
Ian G. McKendry University of British Columbia
Timothy R. Oke
Timothy R. Oke University of British Columbia
Kurt G. Anlauf
Kurt G. Anlauf Environment and Climate Change Canada
Robert M. Banta
Robert M. Banta National Oceanic and Atmospheric Administration
Raymond M. Hoff
Raymond M. Hoff University of Maryland, Baltimore County
Michael Brauer
Michael Brauer University of British Columbia
Sara C. Pryor
Sara C. Pryor Cornell University
Jan W. Bottenheim
Jan W. Bottenheim Environment and Climate Change Canada
Paul B. Shepson
Paul B. Shepson Stony Brook University
Mathias W. Rotach
Mathias W. Rotach University of Innsbruck

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring environmental sciences often leads to diverse career paths that blend different fields and skill sets. For those interested in earth processes and the physical environment, pursuing online geology degrees offers a strong foundation. These programs focus on understanding Earth's materials, which is critical for environmental assessment and resource management.

Technology-driven roles have also grown, especially with Geographic Information Systems (GIS) becoming central to environmental data analysis. Students seeking advanced skills in spatial data can consider top gis degree programs, which prepare graduates for mapping and environmental monitoring careers.

Leadership and policy roles are essential in shaping sustainable environmental practices. For professionals aiming to enter public administration with a focus on environmental policy, options like the easiest online mpa programs provide flexible pathways to develop management and governance skills.

Understanding societal impacts on the environment is equally important. Degrees such as the best online bachelor degree in sociology help students explore human behavior trends, aiding in community-focused environmental solutions.

Best Scientists Citing Douw G. Steyn

Trending Scientists