World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
54
Citations
11995
World Ranking
4009
National Ranking
1529

Havala O. T. Pye 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 Havala O. T. Pye 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: 126 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

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

Havala O. T. Pye 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 Havala O. T. Pye 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: 54 D-Index — 59th percentile

59% of scientists in this discipline score the same or lower.

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

Overview

Havala O. T. Pye is affiliated with the Environmental Protection Agency in the United States. Their research primarily focuses on environmental science and earth and planetary sciences, with significant contributions in atmospheric science and related subfields.

The scientist's work encompasses a range of topics including atmospheric chemistry and aerosols, air quality and health impacts, atmospheric ozone and climate, air quality monitoring and forecasting, atmospheric aerosols and clouds, vehicle emissions and performance, and atmospheric and environmental gas dynamics.

Frequent coauthors collaborating with Havala O. T. Pye include Benjamin N. Murphy, Karl M. Seltzer, Jesse O. Bash, Emma L. D'Ambro, and Kristen M. Foley.

Their recent notable publications include the following:

  • The acidity of atmospheric particles and clouds (2020) in Atmospheric chemistry and physics
  • Secondary organic aerosol association with cardiorespiratory disease mortality in the United States (2021) in Nature Communications

Havala O. T. Pye has published extensively in several scientific venues, particularly:

  • Atmospheric chemistry and physics
  • Environmental Science & Technology
  • Geoscientific model development
  • ACS ES&T Air
  • ACS Earth and Space Chemistry

The research covers multiple scientific fields, with a strong emphasis on environmental science (76 publications) and earth and planetary sciences (65 publications). Their subfield contributions are primarily in atmospheric science (65 publications), health, toxicology and mutagenesis (44 publications), global and planetary change (18 publications), environmental engineering (11 publications), and automotive engineering (9 publications).

Best Publications

  • The acidity of atmospheric particles and clouds

    Havala O. T. Pye;Athanasios Nenes;Becky Alexander;Andrew P. Ault

  • Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms, and organic aerosol

    Nga Lee Ng;Steven S. Brown;Steven S. Brown;Alexander T. Archibald;Elliot Atlas

  • Effect of changes in climate and emissions on future sulfate-nitrate-ammonium aerosol levels in the United States

    H.O.T. Pye;H. Liao;S. Wu;S. Wu;Loretta J. Mickley

  • Secondary organic aerosol (SOA) formation from reaction of isoprene with nitrate radicals (NO 3 )

    N. L. Ng;A. J. Kwan;J. D. Surratt;A. W. H. Chan

  • Monoterpenes are the largest source of summertime organic aerosol in the southeastern United States

    Haofei Zhang;Haofei Zhang;Lindsay D. Yee;Ben H. Lee;Michael P. Curtis

  • Epoxide as a precursor to secondary organic aerosol formation from isoprene photooxidation in the presence of nitrogen oxides

    Ying Hsuan Lin;Haofei Zhang;Haofei Zhang;Havala O.T. Pye;Zhenfa Zhang

  • Aqueous-phase mechanism for secondary organic aerosol formation from isoprene: application to the southeast United States and co-benefit of SO2 emission controls

    Eloise A Marais;Daniel J Jacob;Jose L Jimenez;Jose L Jimenez;Pedro Campuzano-Jost;Pedro Campuzano-Jost

  • Global modeling of organic aerosol: the importance of reactive nitrogen (NO x and NO 3 )

    H. O. T. Pye;H. O. T. Pye;A. W. H. Chan;A. W. H. Chan;M. P. Barkley;M. P. Barkley;J. H. Seinfeld

  • The Community Multiscale Air Quality (CMAQ) model versions 5.3 and 5.3.1: system updates and evaluation.

    K. Wyat Appel;Jesse O. Bash;Kathleen M. Fahey;Kristen M. Foley

  • Atmospheric ammonia and particulate inorganic nitrogen over the United States

    C. L. Heald;J. L. Collett;T. Lee;K. B. Benedict

  • Secondary organic aerosol association with cardiorespiratory disease mortality in the United States

    Unknown

  • Epoxide pathways improve model predictions of isoprene markers and reveal key role of acidity in aerosol formation.

    Havala O T Pye;Robert W. Pinder;Ivan R. Piletic;Ying Xie

  • Examining the effects of anthropogenic emissions on isoprene-derived secondary organic aerosol formation during the 2013 Southern Oxidant and Aerosol Study (SOAS) at the Look Rock, Tennessee ground site

    S. H. Budisulistiorini;S. H. Budisulistiorini;X. Li;S. T. Bairai;S. T. Bairai;J. Renfro

  • A global perspective on aerosol from low-volatility organic compounds

    H. O. T. Pye;J. H. Seinfeld

  • Sources, distribution, and acidity of sulfate–ammonium aerosol in the Arctic in winter–spring

    Jenny A. Fisher;Daniel James Jacob;Qiaoqiao Wang;Roya Bahreini;Roya Bahreini

  • Description and evaluation of the Community Multiscale Air Quality (CMAQ) modeling system version 5.1.

    K. Wyat Appel;Sergey L. Napelenok;Kristen M. Foley;Havala O. T. Pye

  • Unspeciated organic emissions from combustion sources and their influence on the secondary organic aerosol budget in the United States

    Shantanu H. Jathar;Timothy D. Gordon;Christopher J. Hennigan;Havala O. T. Pye

  • Evaluation of dust and trace metal estimates from the Community Multiscale Air Quality (CMAQ) model version 5.0

    K. W. Appel;G. A. Pouliot;H. Simon;G. Sarwar

  • On the implications of aerosol liquid water and phase separation for organic aerosol mass

    Havala O. T. Pye;Benjamin N. Murphy;Lu Xu;Nga L. Ng

  • Modeling the Current and Future Roles of Particulate Organic Nitrates in the Southeastern United States

    Havala O. T. Pye;Deborah J. Luecken;Lu Xu;Christopher M. Boyd

  • Meteorological modes of variability for fine particulate matter (PM 2.5 ) air quality in the United States: implications for PM 2.5 sensitivity to climate change

    A. P. K. Tai;Loretta J. Mickley;Daniel J. Jacob;E Leibensperger

Frequent Co-Authors

Jason D. Surratt
Jason D. Surratt University of North Carolina at Chapel Hill
Jose L. Jimenez
Jose L. Jimenez University of Colorado Boulder
Jesse O. Bash
Jesse O. Bash Environmental Protection Agency
Joel A. Thornton
Joel A. Thornton University of Washington
Nga L. Ng
Nga L. Ng Georgia Institute of Technology
Annmarie G. Carlton
Annmarie G. Carlton University of California, Irvine
Athanasios Nenes
Athanasios Nenes École Polytechnique Fédérale de Lausanne
John H. Seinfeld
John H. Seinfeld California Institute of Technology
Allen H. Goldstein
Allen H. Goldstein University of California, Berkeley
George Pouliot
George Pouliot Environmental Protection Agency

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