World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
54
Citations
11995
World Ranking
4006
National Ranking
1529

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

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Environmental Sciences opens doors to various interdisciplinary fields that complement and broaden career opportunities. For instance, Geographic Information Systems (GIS) plays a crucial role in environmental data analysis and spatial mapping. Those interested can explore the best GIS programs in the US, which equip students with powerful skills to manage and interpret environmental data effectively.

Public administration also intersects with environmental science, especially in policy development and resource management. Students can consider enrolling in some of the easiest online MPA programs, which provide a fast and flexible way to gain leadership capabilities needed in environmental governance.

Understanding human behavior and societal structures is vital for addressing environmental challenges. Pursuing a best online sociology bachelor degree can offer insights into social dynamics, helping professionals design more effective community-driven solutions.

For those aiming at educational leadership or specialized environmental education careers, advanced degrees such as a Doctor of Education (EdD) are beneficial. Options like online EdD programs without dissertation allow for focused, practical studies that can be completed without the lengthy dissertation process.

Best Scientists Citing Havala O. T. Pye

Trending Scientists