World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
39
Citations
5875
World Ranking
8366
National Ranking
386

Thomas A. Edge 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 Thomas A. Edge 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: 102 publications — 14th percentile

14% of scientists in this discipline score the same or lower.

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

Thomas A. Edge 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 Thomas A. Edge 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: 39 D-Index — 15th percentile

15% of scientists in this discipline score the same or lower.

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

Overview

Thomas A. Edge is affiliated with Environment and Climate Change Canada in Canada. Their research primarily spans the field of Environmental Science, with a significant focus on subfields such as Water Science and Technology, Ecology, Health, Toxicology and Mutagenesis, Environmental Chemistry, and Industrial and Manufacturing Engineering.

Their work concentrates on topics including fecal contamination and water quality, water treatment and disinfection, microbial community ecology and physiology, aquatic ecosystems and phytoplankton dynamics, wastewater treatment and reuse, marine and coastal ecosystems, and environmental justice and health disparities.

Frequent coauthors collaborating with Thomas A. Edge include Herb E. Schellhorn, Faizan Saleem, Enze Li, Kevin L. Tran, and Jennifer L. Jiang. The scientist's publications appear regularly in venues such as the Journal of Great Lakes Research, Toxins, Water, Processes, and Microorganisms.

Notable recent papers authored or coauthored by Thomas A. Edge are:

  • Microbial source tracking to identify fecal sources contaminating the Toronto Harbour and Don River watershed in wet and dry weather, 2020, Journal of Great Lakes Research
  • Biological Indicators for Fecal Pollution Detection and Source Tracking: A Review, 2021, Processes
  • Cyanobacterial Algal Bloom Monitoring: Molecular Methods and Technologies for Freshwater Ecosystems, 2023, Microorganisms
  • Spatio-temporal connectivity of the aquatic microbiome associated with cyanobacterial blooms along a Great Lake riverine-lacustrine continuum, 2023, Frontiers in Microbiology
  • Same-day Enterococcus qPCR results of recreational water quality at two Toronto beaches provide added public health protection and reduced beach days lost, 2023, Canadian Journal of Public Health

Best Publications

  • Seasonal relationships among indicator bacteria, pathogenic bacteria, Cryptosporidium oocysts, Giardia cysts, and hydrological indices for surface waters within an agricultural landscape.

    Graham Wilkes;Thomas Edge;Victor Gannon;Cassandra Jokinen

  • Quo vadis source tracking? Towards a strategic framework for environmental monitoring of fecal pollution.

    Jorge W. Santo Domingo;Dustin G. Bambic;Thomas A. Edge;Stefan Wuertz

  • Phylogenetic Diversity and Molecular Detection of Bacteria in Gull Feces

    Jingrang Lu;Jorge W. Santo Domingo;Regina Lamendella;Thomas Edge

  • Vulnerability of waterborne diseases to climate change in Canada: a review.

    Dominique Charron;M Thomas;David Waltner-Toews;Jeffery Aramini

  • Associations among pathogenic bacteria, parasites, and environmental and land use factors in multiple mixed-use watersheds.

    G. Wilkes;T.A. Edge;V.P.J. Gannon;C. Jokinen

  • Distribution and characteristics of Listeria monocytogenes isolates from surface waters of the South Nation River watershed, Ontario, Canada.

    Emilie Lyautey;Emilie Lyautey;David R. Lapen;Graham Wilkes;Katherine McCleary

  • Microbes in beach sands: integrating environment, ecology and public health

    Richard L. Whitman;Valerie J. Harwood;Thomas A. Edge;Meredith B. Nevers

  • Occurrence of virulence and antimicrobial resistance genes in Escherichia coli isolates from different aquatic ecosystems within the St. Clair River and Detroit River areas.

    Katia Hamelin;Katia Hamelin;Guillaume Bruant;Abdel El-Shaarawi;Stephen Hill

  • Multiple lines of evidence to identify the sources of fecal pollution at a freshwater beach in Hamilton Harbour, Lake Ontario

    Thomas A. Edge;Stephen Hill

  • Faecal indicator bacteria enumeration in beach sand: a comparison study of extraction methods in medium to coarse sands

    A.B. Boehm;J. Griffith;C. McGee;T.A. Edge

  • Tracking host sources of Cryptosporidium spp. in raw water for improved health risk assessment.

    Norma J. Ruecker;Shannon L. Braithwaite;Edward Topp;Thomas Edge

  • Beach sand and the potential for infectious disease transmission: observations and recommendations

    Helena M. Solo-Gabriele;Valerie J. Harwood;David Kay;Roger S. Fujioka

  • Occurrence of antibiotic resistance in Escherichia coli from surface waters and fecal pollution sources near Hamilton, Ontario.

    Thomas A Edge;Stephen Hill

  • Development of a rapid quantitative PCR assay for direct detection and quantification of culturable and non-culturable Escherichia coli from agriculture watersheds.

    Izhar U.H. Khan;Vic Gannon;Rob Kent;Wendell Koning

  • Distribution and Diversity of Escherichia coli Populations in the South Nation River Drainage Basin, Eastern Ontario, Canada

    Emilie Lyautey;Zexun Lu;David R. Lapen;Graham Wilkes

  • Characteristics and frequency of detection of fecal Listeria monocytogenes shed by livestock, wildlife, and humans

    Emilie LyauteyE. Lyautey;Alain HartmannA. Hartmann;Franco PagottoF. Pagotto;Kevin TylerK. Tyler

  • Global Distribution of Human-Associated Fecal Genetic Markers in Reference Samples from Six Continents

    René E. Mayer;Georg H. Reischer;Georg H. Reischer;Simone K. Ixenmaier;Julia Derx

  • Biological Indicators for Fecal Pollution Detection and Source Tracking: A Review

    Enze Li;Faizan Saleem;Thomas A. Edge;Herb E. Schellhorn

  • Evidence of Naturalized Stress-Tolerant Strains of Escherichia coli in Municipal Wastewater Treatment Plants

    Shuai Zhi;Graham Banting;Qiaozhi Li;Thomas A. Edge

  • Microbial Diversity and Host-Specific Sequences of Canada Goose Feces

    Jingrang Lu;Jorge W. Santo Domingo;Stephen Hill;Thomas A. Edge

  • Multiple lines of evidence to identify the sources of fecal pollution at a freshwater beach in Hamilton Harbour

    Thomas A. Edge;Stephen Hill

Frequent Co-Authors

Edward Topp
Edward Topp Agriculture and Agriculture-Food Canada
David R. Lapen
David R. Lapen Government of Canada
Richard L. Whitman
Richard L. Whitman United States Geological Survey
Helena M. Solo-Gabriele
Helena M. Solo-Gabriele University of Miami
Alexandria B. Boehm
Alexandria B. Boehm Stanford University
Jorge W. Santo Domingo
Jorge W. Santo Domingo Environmental Protection Agency
Michael J. Sadowsky
Michael J. Sadowsky University of Minnesota
Valerie J. Harwood
Valerie J. Harwood University of South Florida
Roland Brousseau
Roland Brousseau National Research Council Canada
Warish Ahmed
Warish Ahmed Commonwealth Scientific and Industrial Research Organisation

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Related Online Degrees & Career Pathways

For students interested in Environmental Sciences, exploring related online degrees can expand career opportunities. Many learners opt for an online general studies degree affordable programs to gain broad knowledge while keeping education costs low. These programs often provide flexibility to balance studies with work or other commitments.

When choosing a degree, some students wonder about what is the easiest bachelor's degree to get. While environmental fields require commitment, degrees with practical components like Geographic Information Systems (GIS) or Geology can offer engaging, hands-on learning experiences that many find manageable and rewarding.

For those particularly drawn to Earth sciences, pursuing a geology degree online can be a strategic choice. These programs enable students to understand soil, rock formations, and natural processes crucial for environmental assessment and conservation roles.

Additionally, careers in spatial analysis and mapping are growing, making the best gis graduate programs highly valuable. GIS skills complement environmental science knowledge, providing graduates with tools essential for data-driven decision-making in resource management and urban planning.

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