World's Best Scientists 2026 revealed!
Thomas A. Clair

Thomas A. Clair

D-Index & Metrics

Environmental Sciences

D-Index
34
Citations
5123
World Ranking
9427
National Ranking
441

Thomas A. Clair 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. Clair 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: 81 publications — 5th percentile

5% of scientists in this discipline score the same or lower.

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

Thomas A. Clair 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. Clair 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: 34 D-Index — 3rd percentile

3% 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. Clair is affiliated with Dalhousie University in Canada. Their research spans multiple interconnected fields including Environmental Science, Engineering, and Chemistry, with specific work concentrated in subfields such as Organic Chemistry, Environmental Chemistry, Mechanical Engineering, Biomedical Engineering, and Pollution.

The scientist's research topics cover areas including Soil and Water Nutrient Dynamics, Innovative Microfluidic and Catalytic Techniques Innovation, Chemical Synthesis and Reactions, Nanomaterials for catalytic reactions, Mine drainage and remediation techniques, Heavy metals in environment, and Membrane Separation and Gas Transport.

Frequent co-authors collaborating with Thomas A. Clair include Morgane Le Hir, Adrien Magne, E. Carretier, Philippe Moulin, and Shannon Sterling. These collaborations indicate a multidisciplinary network contributing to various aspects of chemistry, environmental science, and engineering.

Their scholarly output has appeared in journals such as Hydrology and Earth System Sciences, Organic Process Research & Development, Membranes, Hydrological Processes, and Separation and Purification Technology.

  • Ionic aluminium concentrations exceed thresholds for aquatic health in Nova Scotian rivers, even during conditions of high dissolved organic carbon and low flow, 2020, Hydrology and earth system sciences
  • Solvent Regeneration in Complex Mixture Using Pervaporation, 2020, Organic Process Research & Development
  • Recovery of Homogeneous Platinoid Catalysts from Pharmaceutical Media: Review on the Existing Treatments and the Perspectives of Membrane Processes, 2023, Membranes
  • Kejimkujik calibrated catchments: A benchmark dataset for long-term impacts of terrestrial and freshwater acidification, 2022, Hydrological Processes
  • Membrane separation between homogeneous palladium-based catalysts and industrial active pharmaceutical ingredients from a complex organic solvent matrix: First approach using ceramic membranes, 2024, Separation and Purification Technology

Best Publications

  • Regional trends in aquatic recovery from acidification in North America and Europe

    J. L. Stoddard;D. S. Jeffries;A. Lükewille;T. A. Clair

  • Biological Mercury Hotspots in the Northeastern United States and Southeastern Canada

    David C. Evers;Young Ji Han;Charles T. Driscoll;Neil C. Kamman

  • Sulphate, Nitrogen and Base Cation Budgets at 21 Forested Catchments in Canada, the United States and Europe

    Shaun A. Watmough;Julian Aherne;Christine Alewell;Paul Arp

  • Assessing the recovery of lakes in southeastern Canada from the effects of acidic deposition.

    Dean S. Jeffries;Thomas A. Clair;Suzanne Couture;Peter J. Dillon

  • Predicting export of dissolved organic carbon from forested catchments in glaciated landscapes with shallow soils

    I. F. Creed;F. D. Beall;T. A. Clair;P. J. Dillon

  • Generality of fractal 1/f scaling in catchment tracer time series, and its implications for catchment travel time distributions

    Sarah E. Godsey;Wenche Aas;Thomas A. Clair;Heleen A. de Wit

  • Exports of carbon and nitrogen from river basins in Canada's Atlantic Provinces

    T. A. Clair;T. L. Pollock;J. M. Ehrman

  • Using neural networks to assess the influence of changing seasonal climates in modifying discharge, dissolved organic carbon, and nitrogen export in eastern Canadian rivers

    Thomas A. Clair;James M. Ehrman

  • Variations in discharge and dissolved organic carbon and nitrogen export from terrestrial basins with changes in climate: A neural network approach

    Thomas A. Clair;James M. Ehrman

  • Long-term patterns of dissolved organic carbon in lakes across eastern Canada: Evidence of a pronounced climate effect

    Jan Zhang;Jeff Hudson;Richard Neal;Jeff Sereda

  • Liming for the mitigation of acid rain effects in freshwaters: A review of recent results

    Thomas A Clair;Atle Hindar

  • Physical controls on total and methylmercury concentrations in streams and lakes of the northeastern USA

    James B Shanley;Neil C Kamman;Thomas A Clair;Ann Chalmers

  • Dissolved organic carbon and dissolved organic nitrogen export from forested watersheds in Nova Scotia: Identifying controlling factors

    J. A. Aitkenhead-Peterson;J. E. Alexander;T. A. Clair

  • Distribution patterns of mercury in lakes and rivers of northeastern North America.

    Ian F. Dennis;Thomas A. Clair;Charles T. Driscoll;Neil Kamman

  • Comparisons of watershed sulfur budgets in southeast Canada and northeast US: new approaches and implications

    Myron J. Mitchell;Gary Lovett;Scott Bailey;Fred Beall

  • Water chemistry and dissolved organic carbon trends in lakes from Canada’s Atlantic Provinces: no recovery from acidification measured after 25 years of lake monitoring

    Thomas A. Clair;Ian F. Dennis;Robert Vet

  • Changes in freshwater acidification trends in Canada's Atlantic Provinces: 1983-1997

    Thomas A. Clair;James M. Ehrman;Abbey J. Ouellet;Guy Brun

  • Gaseous carbon dioxide and methane, as well as dissolved organic carbon losses from a small temperate wetland under a changing climate.

    T.A Clair;P Arp;T.R Moore;M Dalva

  • Mercury in northeastern North America: a synthesis of existing databases.

    David C. Evers;Thomas A. Clair

  • Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991)

    T. A. Clair;P. J. Dillon;J. Ion;M. Papineau

Frequent Co-Authors

Peter J. Dillon
Peter J. Dillon Trent University
Paul A. Arp
Paul A. Arp University of New Brunswick
Bernard J. Cosby
Bernard J. Cosby University of Virginia
Stephen A. Norton
Stephen A. Norton University of Maine
Lewis A. Molot
Lewis A. Molot York University
Irena F. Creed
Irena F. Creed University of Toronto
Julian Aherne
Julian Aherne Trent University
Charles T. Driscoll
Charles T. Driscoll Syracuse University
Ivan J. Fernandez
Ivan J. Fernandez University of Maine
Tim R. Moore
Tim R. Moore McGill University

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