New SoGA 2025 Report

The report covers global air quality and health impacts, including data on noncommunicable diseases.
Learn More

Research Reports

HEI’s mission is to provide credible science to support environmental regulations and other policy decisions. The results of each HEI-funded project undergo peer-review by outside scientists and the Health Review Committee. The HEI Research Reports contain the Investigator’s Report and the Review Committee’s evaluation of the study, summarized in a Commentary or short Critique.

ISSN 1041-5505 (print)        ISSN 2688-6855 (online) 

Optimizing Air Pollution Exposure Assessment with Application to Cognitive Function

Research Report 228
Lianne Sheppard
Magali Blanco
Annie Doubleday
Adam Szpiro
Jianzhao Bi
Christopher Zuidema
et al.
2025
Topics: 
Air Pollution
Nitrogen Oxides
Particulate Matter
Traffic-related
Exposure Methods
Statistical Methods

This report presents a study led by Lianne Sheppard at the University of Washington. Sheppard and colleagues compared the performance of different exposure assessment study design features on long-term exposure and health estimates in Seattle, Washington.

Read more >

Investigating the Consequences of Measurement Error of Gradually More Sophisticated Long-Term Personal Exposure Models in Assessing Health Effects: The London Study (MELONS)

Research Report 227
Klea Katsouyanni
Dimitris Evangelopoulos
Dylan Wood
Benjamin Barratt
Hanbin Zhang
Heather Walton
et al.
2025
Topics: 
Nitrogen Oxides
Ozone & Oxidants
Particulate Matter
Exposure Methods
Statistical Methods

This report presents a study led by Klea Katsouyanni at Imperial College London. Katsouyanni and colleagues evaluated whether detailed estimates of long-term, personal exposures to outdoor air pollution yield better estimates of the health effects of exposure than less detailed approaches.

Read more >