World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
66
Citations
16925
World Ranking
2078
National Ranking
848

William C. Malm 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 William C. Malm 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: 183 publications — 58th percentile

58% of scientists in this discipline score the same or lower.

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

William C. Malm 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 William C. Malm 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: 66 D-Index — 79th percentile

79% of scientists in this discipline score the same or lower.

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

Overview

William C. Malm is affiliated with Colorado State University in the United States and has conducted research primarily within the fields of Environmental Science and Earth and Planetary Sciences. Their work focuses on various aspects of atmospheric composition and air quality.

Their recent publications encompass several topics related to atmospheric science, including aerosol light scattering, particulate matter, and the impacts of legislation on air quality. Notable recent papers include the following:

  • Evaluating the PurpleAir monitor as an aerosol light scattering instrument, 2022, Atmospheric Measurement Techniques
  • Thirty years of the Clean Air Act Amendments: Impacts on haze in remote regions of the United States (1990-2018), 2020, Atmospheric Environment
  • Implications of Organic Mass to Carbon Ratios Increasing Over Time in the Rural United States, 2020, Journal of Geophysical Research Atmospheres
  • Spatial and Seasonal Variability of Remote and Urban Speciated Fine Particulate Matter in the United States, 2024, Journal of Geophysical Research Atmospheres
  • Long-term trends in particulate sulfate at Grand Canyon National Park, 2021, Atmospheric Environment

The topics William C. Malm has worked on are diverse but focused mainly on atmospheric chemistry and aerosols, including:

  • Atmospheric chemistry and aerosols
  • Atmospheric aerosols and clouds
  • Air Quality and Health Impacts
  • Air Quality Monitoring and Forecasting
  • Atmospheric and Environmental Gas Dynamics
  • Vehicle emissions and performance
  • Impact of Light on Environment and Health

Their studies have contributed to subfields such as Atmospheric Science, Global and Planetary Change, Health, Toxicology and Mutagenesis, Environmental Engineering, and Automotive Engineering.

William C. Malm frequently collaborates with several researchers including:

  • Bret A. Schichtel (11 collaborations)
  • A. J. Prenni (5 collaborations)
  • Elisabeth Andrews (4 collaborations)
  • J. L. Hand (4 collaborations)
  • James R. Ouimette (3 collaborations)

Most of their work has been published in the following venues:

  • Atmospheric Environment
  • Journal of Geophysical Research Atmospheres
  • Journal of the Air & Waste Management Association
  • Zenodo (CERN European Organization for Nuclear Research)
  • Atmospheric Measurement Techniques

Best Publications

  • Spatial and seasonal trends in particle concentration and optical extinction in the United States

    William C. Malm;James F. Sisler;Dale Huffman;Robert A. Eldred

  • Asian Dust Events of April 1998

    Rudolf B. Husar;D. M. Tratt;B. A. Schichtel;S. R. Falke

  • Atmospheric aerosol over Alaska: 2. Elemental composition and sources

    Alexandr V. Polissar;Philip K. Hopke;Pentti Paatero;William C. Malm

  • A residence time probability analysis of sulfur concentrations at grand Canyon national park

    Lowell L. Ashbaugh;William C. Malm;Willy Z. Sadeh

  • Effects of mixing on extinction by carbonaceous particles

    Kirk A. Fuller;William C. Malm;Sonia M. Kreidenweis

  • Spatial and monthly trends in speciated fine particle concentration in the United States

    William C. Malm;Bret A. Schichtel;Marc L. Pitchford;Lowell L. Ashbaugh

  • Emissions of trace gases and aerosols during the open combustion of biomass in the laboratory

    Gavin R. McMeeking;Gavin R. McMeeking;Sonia M. Kreidenweis;Stephen Baker;Christian M. Carrico

  • Revised Algorithm for Estimating Light Extinction from IMPROVE Particle Speciation Data

    Marc Pitchford;William Malm;Bret Schichtel;Naresh Kumar

  • Intercontinental transport of pollution and dust aerosols: implications for regional air quality

    Mian Chin;T. Diehl;P. Ginoux;W. Malm

  • Determination of levoglucosan in biomass combustion aerosol by high-performance anion-exchange chromatography with pulsed amperometric detection

    Guenter Engling;Christian M. Carrico;Sonia M. Kreidenweis;Jeffrey L. Collett

  • Estimates of aerosol species scattering characteristics as a function of relative humidity

    William C Malm;Derek E Day

  • Seasonal composition of remote and urban fine particulate matter in the United States

    J. L. Hand;B. A. Schichtel;M. Pitchford;W. C. Malm

  • Review of aerosol mass scattering efficiencies from ground-based measurements since 1990

    Unknown

  • A method for smoke marker measurements and its potential application for determining the contribution of biomass burning from wildfires and prescribed fires to ambient PM2.5 organic carbon

    A. P. Sullivan;A. S. Holden;L. A. Patterson;G. R. McMeeking

  • Particulate sulfate ion concentration and SO 2 emission trends in the United States from the early 1990s through 2010

    J. L. Hand;B. A. Schichtel;W. C. Malm;M. L. Pitchford

  • Optical, physical, and chemical properties of tar balls observed during the Yosemite Aerosol Characterization Study

    Jenny L. Hand;W. C. Malm;Alexander Laskin;D. E. Day

  • Biomass burning smoke aerosol properties measured during Fire Laboratory at Missoula Experiments (FLAME)

    E. J. T. Levin;G. R. McMeeking;G. R. McMeeking;C. M. Carrico;L. E. Mack

  • Linear trend analysis: a comparison of methods

    Unknown

  • An examination of the physical and optical properties of aerosols collected in the IMPROVE program

    William C. Malm;Jenny L. Hand

  • Aerosol light scattering measurements as a function of relative humidity : a comparison between measurements made at three different sites

    Derek E Day;William C Malm

  • Uncertainties in PM2.5 gravimetric and speciation measurements and what we can learn from them.

    William C. Malm;Bret A. Schichtel;Marc L. Pitchford

  • Fossil and contemporary fine particulate carbon fractions at 12 rural and urban sites in the United States

    Bret A. Schichtel;William C. Malm;Graham Bench;Stewart Fallon

  • Reduction in biomass burning aerosol light absorption upon humidification: roles of inorganically-induced hygroscopicity, particle collapse, and photoacoustic heat and mass transfer

    K. A. Lewis;W. P. Arnott;H. Moosmüller;R. K. Chakrabarty

Frequent Co-Authors

Bret A. Schichtel
Bret A. Schichtel National Park Service
Sonia M. Kreidenweis
Sonia M. Kreidenweis Colorado State University
Jeffrey L. Collett
Jeffrey L. Collett Colorado State University
Christian M. Carrico
Christian M. Carrico New Mexico Institute of Mining and Technology
Gavin R. McMeeking
Gavin R. McMeeking Colorado State University
Amy P. Sullivan
Amy P. Sullivan Colorado State University
Taehyoung Lee
Taehyoung Lee Hankuk University of Foreign Studies
Guenter Engling
Guenter Engling Desert Research Institute
Philip K. Hopke
Philip K. Hopke Clarkson University
Judith C. Chow
Judith C. Chow Desert Research Institute

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