World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
71
Citations
16957
World Ranking
1603
National Ranking
680

Overview

Robert A. Harley is affiliated with the University of California, Berkeley in the United States. Their research primarily focuses on environmental science, earth and planetary sciences, and engineering, with specific contributions across several subfields including health, toxicology and mutagenesis, atmospheric science, automotive engineering, pollution, and renewable energy, sustainability, and the environment.

Their work encompasses multiple topics, notably:

  • Air Quality and Health Impacts
  • Atmospheric chemistry and aerosols
  • Vehicle emissions and performance
  • Energy and Environment Impacts
  • Energy, Environment, and Transportation Policies
  • Air Quality Monitoring and Forecasting
  • Urban Transport and Accessibility

Frequent collaborators include Katelyn A. Yu, Brian McDonald, Wilson H. McNeil, Fan Tong, and Maximilian Auffhammer.

The most frequent publication venues for Robert A. Harley's research are:

  • Environmental Science & Technology
  • Nature Sustainability
  • Environmental Justice
  • ACS ES&T Air
  • ISEE Conference Abstracts

Recent publications demonstrate a focus on air pollution, vehicle emissions, and environmental equity. Notable papers include:

  • "Evaluation of Nitrogen Oxide Emission Inventories and Trends for On-Road Gasoline and Diesel Vehicles" (2021) published in Environmental Science & Technology
  • "Improved Spatial Resolution in Modeling of Nitrogen Oxide Concentrations in the Los Angeles Basin" (2023) published in Environmental Science & Technology
  • "Impact of truck electrification on air pollution disparities in the United States" (2025) published in Nature Sustainability
  • "Effects of Diesel Engine Emission Controls on Environmental Equity and Justice" (2021) published in Environmental Justice
  • "Corridor-Level Impacts of Battery-Electric Heavy-Duty Trucks and the Effects of Policy in the United States" (2023) published in Environmental Science & Technology

Best Publications

  • Volatile chemical products emerging as largest petrochemical source of urban organic emissions.

    Brian C. McDonald;Brian C. McDonald;Joost A. De Gouw;Joost A. De Gouw;Jessica B. Gilman;Shantanu H. Jathar

  • Secondary organic aerosol formation and transport

    Spyros N. Pandis;Robert A. Harley;Glen R. Cass;John H. Seinfeld

  • Characterization of Polycyclic Aromatic Hydrocarbons in Motor Vehicle Fuels and Exhaust Emissions

    Linsey C. Marr;and Thomas W. Kirchstetter;Robert A. Harley;Antonio H. Miguel

  • On-Road Emissions of Particulate Polycyclic Aromatic Hydrocarbons and Black Carbon from Gasoline and Diesel Vehicles

    Antonio H. Miguel;Thomas W. Kirchstetter;Robert A. Harley;Susanne V. Hering

  • Elucidating secondary organic aerosol from diesel and gasoline vehicles through detailed characterization of organic carbon emissions

    Drew R. Gentner;Gabriel Isaacman;David R. Worton;Arthur W. H. Chan

  • Review of Urban Secondary Organic Aerosol Formation from Gasoline and Diesel Motor Vehicle Emissions

    Drew R. Gentner;Shantanu H. Jathar;Timothy D. Gordon;Timothy D. Gordon;Roya Bahreini

  • On-road measurement of fine particle and nitrogen oxide emissions from light- and heavy-duty motor vehicles

    Thomas W. Kirchstetter;Robert A. Harley;Nathan M. Kreisberg;Mark R. Stolzenburg

  • Photochemical modeling of the Southern California air quality study

    Robert A. Harley;Armistead G. Russell;Gregory J. McRae;Glen R. Cass

  • MOBILE SOURCES CRITICAL REVIEW 1998 NARSTO ASSESSMENT

    R.F Sawyer;R.A Harley;S.H Cadle;J.M Norbeck

  • Long-term changes in emissions of nitrogen oxides and particulate matter from on-road gasoline and diesel vehicles

    George A. Ban-Weiss;John P. McLaughlin;Robert A. Harley;Melissa M. Lunden

  • Spectral analysis of weekday–weekend differences in ambient ozone, nitrogen oxide, and non-methane hydrocarbon time series in California

    Linsey C. Marr;Robert A. Harley

  • Quantifying sources of methane using light alkanes in the Los Angeles basin, California

    J. Peischl;J. Peischl;T. B. Ryerson;J. Brioude;J. Brioude;K. C. Aikin;K. C. Aikin

  • Impact of Oxygenated Gasoline Use on California Light-Duty Vehicle Emissions

    Thomas W. Kirchstetter;Brett C. Singer;Robert A. Harley;Gary R. Kendall

  • Influence of future climate and emissions on regional air quality in California

    Allison L. Steiner;Shaheen Tonse;Shaheen Tonse;Ronald C. Cohen;Ronald C. Cohen;Allen H. Goldstein

  • A Preliminary Synthesis of Modeled Climate Change Impacts on U.S. Regional Ozone Concentrations

    C. P. Weaver;X. Z. Liang;J. Zhu;P. J. Adams

  • Respeciation of organic gas emissions and the detection of excess unburned gasoline in the atmosphere

    Robert A. Harley;Michael P. Hannigan;Glen R. Cass

  • Measurement of nitrous acid in motor vehicle exhaust

    Thomas W. Kirchstetter;Robert A. Harley;David Littlejohn

  • On-Road Measurement of Ammonia and Other Motor Vehicle Exhaust Emissions

    Andrew J. Kean;Robert A. Harley;David Littlejohn;Gary R. Kendall

  • Effects of Vehicle Speed and Engine Load on Motor Vehicle Emissions

    Andrew J. Kean;Robert A. Harley;Gary R. Kendall

  • Evaluation of mobile source emission trends in the United States

    Timothy R. Dallmann;Robert A. Harley

Frequent Co-Authors

Thomas W. Kirchstetter
Thomas W. Kirchstetter Lawrence Berkeley National Laboratory
Allen H. Goldstein
Allen H. Goldstein University of California, Berkeley
Brett C. Singer
Brett C. Singer Lawrence Berkeley National Laboratory
Drew R. Gentner
Drew R. Gentner Yale University
Jessica B. Gilman
Jessica B. Gilman National Oceanic and Atmospheric Administration
Glen R. Cass
Glen R. Cass California Institute of Technology
William C. Kuster
William C. Kuster National Oceanic and Atmospheric Administration
John S. Holloway
John S. Holloway National Oceanic and Atmospheric Administration
Carsten Warneke
Carsten Warneke National Oceanic and Atmospheric Administration
Jeff Peischl
Jeff Peischl Cooperative Institute for Research in Environmental Sciences

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

For those interested in expanding their expertise beyond Environmental Sciences, pursuing an online sociology degree bachelors can provide valuable insights into social behaviors and community dynamics, which are essential in environmental policy and advocacy roles.

Educators aiming to take a leadership role in environmental education might consider advanced degrees such as an EdD. There are programs available that offer an edd no dissertation pathway, allowing students to focus on practical applications rather than traditional research, speeding up the journey to earning their doctorate.

Additionally, many professionals start with an eds to edd programs online, which provide a seamless transition from a master's degree in education to a doctorate. This pathway is ideal for those who want to deepen their expertise without interrupting their career trajectory.

For social work practitioners interested in environmental community health and development, exploring fully funded dsw programs online offers an affordable way to attain a terminal degree that combines social work leadership with sustainable practice initiatives.

Best Scientists Citing Robert A. Harley

Trending Scientists