New Report on Air Quality Trends Associated with Unconventional Oil & Gas Development

The study assessed long-term trends in air quality in oil & gas producing regions in Texas & Colorado. Learn More!

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Publications

Long-Term Trends in Air Quality in Unconventional Oil and Gas Development Regions in the United States

Gunnar W. Schade
Detlev Helmig
Katherine Potter
Michel Stahli
Gabriel Greenberg
2026
Research Report 242
Air Pollution
Air Toxics
Nitrogen Oxides
Particulate Matter
Energy

This report presents a study led by Gunnar W. Schade (Texas A&M University) and Detlev Helmig (Boulder AIR). Schade, Helmig, and colleagues evaluated long-term air quality trends across unconventional oil and gas development regions in the United States, primarily in Texas (1997–2023) and Colorado (2008–2024).

Annual Report 2025

Health Effects Institute
2026
Annual Report 2025
Air Pollution

We’re pleased to share the Health Effects Institute’s 2025 Annual Report: Expanding Our Vision for a Healthier Environment. This year’s report highlights the many initiatives, research, and programs that helped make 2025 such a successful year. This success comes from our sponsors, board and committee members, researchers, partners, collaborators, staff, and others who work to help provide impartial science to inform decisions that foster a healthier environment for all.

Intersections as Hot Spots: Assessing the Contribution of Localized Nontailpipe Emissions and Noise on the Association Between Traffic and Children’s Lung Function

Meredith Franklin
Scott Fruin
Rob McConnell
Xiaozhe Yin
Masoud Fallah-Shorshani
2026
Research Report 241
Air Pollution
Multipollutant Mixtures
Particulate Matter
Traffic-related
Exposure Methods

This report presents a study led by Meredith Franklin at the University of Southern California. Franklin and colleagues examined the association between nontailpipe particle exposures and lung function in the landmark Children’s Health Study in Southern California and explored the role of noise and green space.

Monitoring and Modeling Population Exposures to Air Pollutants from Oil and Gas Development: Part 1. Predictive, Source-Oriented Modeling and Measurements to Evaluate Community Exposures to Air Pollutants and Noise from UOGD

Lea Hildebrandt Ruiz
David Allen
Pawel Misztal
Elizabeth Matsui
Roger Peng
Yosuke Kimura
et al.
2026
Research Report 240, Part 1
Air Toxics
Ozone & Oxidants
Particulate Matter
Energy

This report presents a study led by Lea Hildebrandt Ruiz at The University of Texas at Austin. Hildebrandt Ruiz and colleagues examined population exposures to air emissions and noise in a major US oil and gas region and developed a model for use in multiple regions to predict population exposures and assess the effectiveness of interventions intended to mitigate emissions to the air. 

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