World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
35
Citations
7900
World Ranking
9234
National Ranking
29

R. M. Garland 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 R. M. Garland 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: 101 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.

R. M. Garland 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 R. M. Garland 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: 35 D-Index — 5th percentile

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

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

Overview

R. M. Garland is affiliated with the University of Pretoria in South Africa and specializes in Environmental Science. Their research covers multiple subfields including Health, Toxicology and Mutagenesis, Atmospheric Science, Global and Planetary Change, Environmental Engineering, and General Health Professions.

The scientist's work focuses primarily on topics related to air quality and its impacts on health, climate change and associated health outcomes, atmospheric chemistry and aerosols, air quality monitoring and forecasting, global health care issues, environmental gas dynamics, and allergic rhinitis and sensitization.

Garland has authored numerous scientific papers published in several academic journals. The more frequently appearing publication venues include:

  • Clean Air Journal
  • The Lancet Planetary Health
  • Environment International
  • Atmospheric Research
  • Atmosphere

Notable recent papers by Garland include:

  • "Mortality risk attributable to wildfire-related PM2·5 pollution: a global time series study in 749 locations" (2021, The Lancet Planetary Health)
  • "Short term association between ozone and mortality: global two stage time series study in 406 locations in 20 countries" (2020, BMJ)
  • "A global observational analysis to understand changes in air quality during exceptionally low anthropogenic emission conditions" (2021, Environment International)
  • "Heat-related cardiorespiratory mortality: Effect modification by air pollution across 482 cities from 24 countries" (2023, Environment International)
  • "Joint effect of heat and air pollution on mortality in 620 cities of 36 countries" (2023, Environment International)

Garland's frequent co-authors include Aurelio Tobías, Evangelia Samoli, Joana Madureira, Masahiro Hashizume, and Noah Scovronick, each of whom has collaborated on at least 11 publications with Garland.

Best Publications

  • Ambient Particulate Air Pollution and Daily Mortality in 652 Cities

    Cong Liu;Renjie Chen;Francesco Sera;Ana M. Vicedo-Cabrera

  • Rainforest Aerosols as Biogenic Nuclei of Clouds and Precipitation in the Amazon

    U. Pöschl;S. T. Martin;B. Sinha;Q. Chen

  • Projections of rapidly rising surface temperatures over Africa under low mitigation.

    Francois Engelbrecht;Francois Engelbrecht;Jimmy Adegoke;Mary-Jane Bopape;Mogesh Naidoo

  • Mortality risk attributable to wildfire-related PM2·5 pollution: a global time series study in 749 locations.

    Gongbo Chen;Yuming Guo;Xu Yue;Shilu Tong

  • Relative roles of biogenic emissions and Saharan dust as ice nuclei in the Amazon basin

    Anthony J. Prenni;Markus D. Petters;Sonia M. Kreidenweis;Colette L. Heald

  • Exploring the atmospheric chemistry of nitrous acid (HONO) at a rural site in Southern China

    X. Li;T. Brauers;R. Häseler;B. Bohn

  • Short term association between ozone and mortality: global two stage time series study in 406 locations in 20 countries.

    Ana M. Vicedo-Cabrera;Ana M. Vicedo-Cabrera;Ana M. Vicedo-Cabrera;Francesco Sera;Cong Liu;Ben Armstrong

  • A global observational analysis to understand changes in air quality during exceptionally low anthropogenic emission conditions.

    Ranjeet S. Sokhi;Vikas Singh;Xavier Querol;Sandro Finardi

  • Cloud condensation nuclei in polluted air and biomass burning smoke near the mega-city Guangzhou, China – Part 2: Size-resolved aerosol chemical composition, diurnal cycles, and externally mixed weakly CCN-active soot particles

    D. Rose;S. S. Gunthe;H. Su;R. M. Garland

  • Size distributions and temporal variations of biological aerosol particles in the Amazon rainforest characterized by microscopy and real-time UV-APS fluorescence techniques during AMAZE-08

    J. A. Huffman;B. Sinha;R. M. Garland;A. Snee-Pollmann;A. Snee-Pollmann

  • Cloud condensation nuclei (CCN) from fresh and aged air pollution in the megacity region of Beijing

    Sachin S Gunthe;Diana Rose;Hang Su;Rebecca M Garland

  • AEROSOL OPTICAL PROPERTIES IN A RURAL ENVIRONMENT NEAR THE MEGA-CITY GUANGZHOU, CHINA: IMPLICATIONS FOR REGIONAL AIR POLLUTION, RADIATIVE FORCING AND REMOTE SENSING

    R. M. Garland;H. Yang;O. Schmid;D. Rose

  • Aerosol optical properties observed during Campaign of Air Quality Research in Beijing 2006 (CAREBeijing‐2006): Characteristic differences between the inflow and outflow of Beijing city air

    R. M. Garland;O. Schmid;A. Nowak;P. Achtert

  • Kinetic double-layer model of aerosol surface chemistry and gas-particle interactions (K2-SURF): Degradation of polycyclic aromatic hydrocarbons exposed to O 3 , NO 2 , H 2 O, OH and NO 3

    M. Shiraiwa;R. M. Garland;U. Pöschl

  • An overview of regional and local characteristics of aerosols in South Africa using satellite, ground, and modeling data.

    S. P. Hersey;S. P. Hersey;R. M. Garland;R. M. Garland;E. Crosbie;T. Shingler

  • Kinetics of acid-catalyzed aldol condensation reactions of aliphatic aldehydes

    Mia T. Casale;Aviva R. Richman;Matthew J. Elrod;Rebecca M. Garland

  • Influence of soot mixing state on aerosol light absorption and single scattering albedo during air mass aging at a polluted regional site in northeastern China

    Y. F. Cheng;Y. F. Cheng;M. Berghof;R. M. Garland;A. Wiedensohler

  • SPARTAN: a global network to evaluate and enhance satellite-based estimates of ground-level particulate matter for global health applications

    G. Snider;C. L. Weagle;R. V. Martin;R. V. Martin;A. van Donkelaar

  • Heat-related cardiorespiratory mortality: Effect modification by air pollution across 482 cities from 24 countries.

    Unknown

  • Impact of Palmitic Acid Coating on the Water Uptake and Loss of Ammonium Sulfate Particles

    R. M. Garland;M. E. Wise;M. E. Wise;M. R. Beaver;H. L. DeWitt

  • Phase Changes in Internally Mixed Maleic Acid/Ammonium Sulfate Aerosols

    Sarah D. Brooks;Rebecca M. Garland;Matthew E. Wise;Anthony J. Prenni

Frequent Co-Authors

Ulrich Pöschl
Ulrich Pöschl Max Planck Institute for Chemistry
Margaret A. Tolbert
Margaret A. Tolbert University of Colorado Boulder
Willem A. Landman
Willem A. Landman University of Pretoria
Meinrat O. Andreae
Meinrat O. Andreae Max Planck Institute for Chemistry
Francois Engelbrecht
Francois Engelbrecht University of the Witwatersrand
Min Hu
Min Hu Peking University
Nobuyuki Takegawa
Nobuyuki Takegawa Tokyo Metropolitan University
A. R. Ravishankara
A. R. Ravishankara Colorado State University
Shilu Tong
Shilu Tong Shanghai Jiao Tong University
Hang Su
Hang Su Max Planck Institute for Chemistry

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Related Online Degrees & Career Pathways

For students interested in Environmental Sciences, exploring related online degrees can open diverse career opportunities. While Environmental Science itself can be challenging, some may consider the easiest bachelor's degree to get as a stepping stone to enter environmental fields with foundational knowledge.

One popular complementary path is pursuing online geology programs, which focus on earth sciences and natural resource management. These programs offer practical skills in understanding environmental processes and can lead to roles in conservation or environmental consulting.

Additionally, Geographic Information Systems (GIS) play a crucial role in environmental analysis and planning. Students can benefit from exploring colleges with gis programs that teach spatial data techniques used in environmental monitoring and decision-making.

For those aiming for leadership roles in environmental policy or management, a one year mpa (Master of Public Administration) may be an ideal choice. This degree equips graduates with administrative expertise applicable to government and nonprofit sectors focused on sustainability.

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