World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
48
Citations
9202
World Ranking
5516
National Ranking
236

Alexandra Steffen 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 Alexandra Steffen 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: 99 publications — 13th percentile

13% of scientists in this discipline score the same or lower.

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

Alexandra Steffen 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 Alexandra Steffen 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: 48 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

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

Overview

Alexandra Steffen is affiliated with Environment and Climate Change Canada in Canada, focusing primarily on environmental science. Their research encompasses various subfields, including health, toxicology and mutagenesis, ecology, global and planetary change, atmospheric science, and electronic, optical, and magnetic materials.

The scientist's body of work explores topics such as mercury impact and mitigation studies, toxic organic pollutants impact, atmospheric and environmental gas dynamics, air quality and health impacts, isotope analysis in ecology, marine animal studies, and atmospheric chemistry and aerosols.

Frequent collaboration is noted with several coauthors, including Geoff W. Stupple, Bridget A. Bergquist, Carl P. J. Mitchell, Frank Wania, and Natalie Szponar.

Alexandra Steffen has published multiple research papers in various scientific journals. Notable recent publications include:

  • Mercury isotope evidence for Arctic summertime re-emission of mercury from the cryosphere, 2022, Nature Communications
  • Mercury stable isotopes reveal the sources and transformations of atmospheric Hg in the high Arctic, 2021, Applied Geochemistry
  • Isotopic Characterization of Atmospheric Gaseous Elemental Mercury by Passive Air Sampling, 2020, Environmental Science & Technology
  • Updated trends for atmospheric mercury in the Arctic: 1995-2018, 2022, The Science of The Total Environment
  • A field intercomparison of three passive air samplers for gaseous mercury in ambient air, 2021, Atmospheric Measurement Techniques

Their work has appeared frequently in prominent scientific venues such as Atmospheric Chemistry and Physics, Nature Communications, Applied Geochemistry, Environmental Science & Technology, and The Science of The Total Environment.

Best Publications

  • Arctic springtime depletion of mercury

    W. H. Schroeder;K. G. Anlauf;L. A. Barrie;J. Y. Lu

  • Halogens and their role in polar boundary-layer ozone depletion

    W. R. Simpson;R. von Glasow;K. Riedel;P. Anderson

  • A synthesis of atmospheric mercury depletion event chemistry in the atmosphere and snow

    A. Steffen;T. Douglas;M. Amyot;P. Ariya

  • Gas-particle partitioning of atmospheric Hg(II) and its effect on global mercury deposition

    Helen Marie Amos;Daniel J. Jacob;C. D. Holmes;Jenny Allison Fisher

  • Analysis of Flavor Volatiles Using Headspace Solid-Phase Microextraction

    Alexandra Steffen;Janusz Pawliszyn

  • Magnification of atmospheric mercury deposition to polar regions in springtime: The link to tropospheric ozone depletion chemistry

    Julia Y. Lu;William H. Schroeder;Len A. Barrie;Alexandra Steffen

  • The Arctic: a sink for mercury

    Parisa A. Ariya;Ashu P. Dastoor;Marc Amyot;William H. Schroeder

  • How does climate change influence Arctic mercury

    Gary A. Stern;Gary A. Stern;Robie W. Macdonald;Robie W. Macdonald;Peter M. Outridge;Peter M. Outridge;Simon Wilson

  • Worldwide trend of atmospheric mercury since 1977

    Franz Slemr;Ernst-Günther Brunke;Ralf Ebinghaus;Christian Temme

  • Riverine source of Arctic Ocean mercury inferred from atmospheric observations

    Jenny Allison Fisher;Daniel J. Jacob;Anne Laerke Soerensen;Helen Marie Amos

  • Mercury in Arctic Marine Ecosystems: Sources, Pathways, and Exposure

    Jane L. Kirk;Igor Lehnherr;Maria Andersson;Birgit M. Braune

  • Atmospheric mercury concentrations: measurements and profiles near snow and ice surfaces in the Canadian Arctic during Alert 2000

    Alexandra Steffen;William Schroeder;Jan Bottenheim;Julie Narayan

  • Mercury in the Arctic atmosphere: an analysis of eight years of measurements of GEM at Alert (Canada) and a comparison with observations at Amderma (Russia) and Kuujjuarapik (Canada).

    Alexandra Steffen;William Schroeder;Rob Macdonald;Laurier Poissant

  • Temporal and spatial variability of total gaseous mercury in Canada : Results from the Canadian Atmospheric Mercury Measurement Network (CAMNet)

    Markus Kellerhals;Stephen Beauchamp;Wayne Belzer;Pierrette Blanchard

  • Trend, seasonal and multivariate analysis study of total gaseous mercury data from the Canadian atmospheric mercury measurement network (CAMNet)

    Christian Temme;P. Blanchard;A. Steffen;C. Banic

  • Some Sources and Sinks of Monomethyl and Inorganic Mercury on Ellesmere Island in the Canadian High Arctic

    Vincent L. St. Louis;Martin J. Sharp;Alexandra Steffen;Al May

  • Atmospheric Mercury Concentrations from Several Observatory Sites in the Northern Hemisphere

    Ki-Hyun Kim;R. Ebinghaus;W. H. Schroeder;P. Blanchard

  • Nested-grid simulation of mercury over North America

    Y. Zhang;L. Jaeglé;A. van Donkelaar;R. V. Martin;R. V. Martin

  • Modeling dynamic exchange of gaseous elemental mercury at polar sunrise.

    Ashu P. Dastoor;Didier Davignon;Nicolas Theys;Michel Van Roozendael

  • Direct detection of atmospheric atomic bromine leading to mercury and ozone depletion

    Siyuan Wang;Stephen M. McNamara;Christopher W. Moore;Daniel Obrist

  • Vertical distribution of gaseous elemental mercury in Canada

    C. M. Banic;S. T. Beauchamp;R. J. Tordon;W. H. Schroeder

  • Size-resolved aerosol chemistry on Whistler Mountain, Canada with a high-resolution aerosol mass spectrometer during INTEX-B

    Y. Sun;Q. Zhang;A. M. Macdonald;K. Hayden

Frequent Co-Authors

Jan W. Bottenheim
Jan W. Bottenheim Environment and Climate Change Canada
Ralf M. Staebler
Ralf M. Staebler Environment and Climate Change Canada
Thomas A. Douglas
Thomas A. Douglas Cold Regions Research and Engineering Laboratory
Ralf Ebinghaus
Ralf Ebinghaus Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research
Aurélien Dommergue
Aurélien Dommergue Grenoble Alpes University
Paul B. Shepson
Paul B. Shepson Stony Brook University
Daniel Obrist
Daniel Obrist University of Massachusetts Lowell
Christophe Ferrari
Christophe Ferrari Observatoire de la Côte d’Azur
Randall V. Martin
Randall V. Martin Washington University in St. Louis
Lars Kaleschke
Lars Kaleschke Alfred Wegener Institute for Polar and Marine Research

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