HEI's Annual Conference 2025

Sunday, May 4 - Tuesday, May 6, 2025 at the Austin Marriott Downtown Hotel in Austin, Texas.

Accountability

This page has a list of publications and news articles related to Accountability (evaluation of the effectiveness of actions to improve air quality). Find more information about our Accountability research.

Research Report 224
Kai Chen
Yiqun Ma
Anne Marb
Federica Nobile
Robert Dubrow
Massimo Stafoggia
et al.
2025

This report presents a study led by Kai Chen of the Yale School of Public Health. Chen and colleagues used the unique scenario of COVID-19 lockdowns in early 2020 to understand how a pause in human activity might affect day-to-day changes in air pollution and the resulting effects on health.

Research Report 223
Perry Hystad
Mary Willis
Elaine Hill
David Schrank
John Molitor
Andrew Larkin
et al.
2025

This report presents a study led by Perry Hystad of Oregon State University. Hystad and colleagues examined whether reductions in traffic-related air pollution were associated with improved birth outcomes in Texas from 1996 to 2016.

New study looks at impact of emissions reductions on birth outcomes

February 6, 2025

HEI has published a new Research Report, Impacts of Vehicle Emission Regulations and Local Congestion Policies on Birth Outcomes Associated with Traffic Air Pollution, which presents a study led by Perry Hystad of Oregon State University.

New report on effects of diesel school bus replacement program

October 16, 2024
Cover of Adar report

A new HEI report, Assessing the National Health, Education, and Air Quality Benefits of the United States Environmental Protection Agency’s School Bus Rebate Program: A Randomized Controlled Trial Design, presents a study led by Sara Adar of the University of Michigan’s School of Public Health.

Research Report 221
Sara D Adar
Meredith Pedde
Richard Hirth
Adam Szpiro
2024

This report presents a study led by Sara Adar of the University of Michigan’s School of Public Health. Adar and colleagues conducted a thorough accountability study of a program for replacing old diesel school buses with new, lower-emitting buses across the United States.

New study examines potential health benefits of reducing emissions

August 27, 2024

HEI has published a new Research Report, Estimating Model-Based Marginal Societal Health Benefits of Air Pollution Emission Reductions in the United States and Canada.

Research Report 218
Amir Hakami
Shunliu Zhao
Marjan Soltanzadeh
Petros Vasilakos
Anas Alhusban
Burak Oztaner
et al.
2024

This report presents a study that estimated potential health benefits associated with reducing emissions from transportation and other sources at locations across the United States and Canada. Amir Hakami of Carleton University, Canada, and colleagues estimated the improvement in fine particulate matter concentrations and how many fewer deaths would be expected if fine particulate matter, ammonia, nitrogen oxides, and sulfur dioxide emissions were reduced.

HEI launches three new studies on wildfires and effectiveness of air quality policies

August 3, 2021

The HEI Board of Directors recently approved funding for three new studies: one to be conducted as part of HEI’s Accountability program to test whether air quality actions achieve cleaner air and better health, and two on the air and health impacts of wildfires.

Spring 2021 Update now available

June 9, 2021

In this issue of Update, read about a newly published HEI study suggesting health improvements from the 2006 California Goods Movement Plan; our very successful Virtual Conference webinar series in April and May; important transitions in HEI Communications; an HEI New Investigator study on mechanisms of lung injury by ozone; a two-day workshop on air pollution and health in Southeast Europe; and more.

Newsletter
Health Effects Institute
2021

In this issue of Update, read about a newly published HEI study suggesting health improvements from the 2006 California Goods Movement Plan; our very successful Virtual Conference webinar series in April and May; important transitions in HEI Communications; an HEI New Investigator study on mechanisms of lung injury by ozone; a two-day workshop on air pollution and health in Southeast Europe; and more.

Study assesses air, health improvements from CA Goods Movement Plan

May 25, 2021

A new HEI Research Report by Ying-Ying Meng at the University of California, Los Angeles, and colleagues examines the impact of the 2006 California Goods Movement Plan on air quality and healthcare utilization among adults with chronic health conditions who were enrolled in California’s health care program for low-income individuals (Medi-Cal).