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)

Cardiometabolic Health Effects of Air Pollution, Noise, Green Space, and Socioeconomic Status: The HERMES Study

Research Report 222

Ole Raaschou-Nielsen

Aslak H Poulsen

Matthias Ketzel

Lise M Frohn

Nina Roswall

Ulla A Hvidtfeldt

et al.

2024

Topics:

Air Pollution

Nitrogen Oxides

Multipollutant Mixtures

This report presents a study led by Ole Raaschou-Nielsen of the Danish Cancer Institute. The research team investigated four traffic-related air pollutants (fine particulate matter, nitrogen dioxide, ultrafine particulates, and elemental carbon), noise, and green space in relation to cardiometabolic health in 2.6 million adults in Denmark.

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

Research Report 221

Sara D Adar

Meredith Pedde

Richard Hirth

Adam Szpiro

2024

Topics:

Air Pollution

Accountability

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.

Air Pollution in Relation to COVID-19 Morbidity and Mortality: A Large Population-Based Cohort Study in Catalonia, Spain (COVAIR)

Research Report 220

Cathryn Tonne

Otavio Ranzani

Anna Alari

Joan Ballester

Xavier Basagaña

Carlos Chaccour

et al.

2024

Topics:

This study evaluated associations between exposure to outdoor air pollution and risk of hospital admissions, disease severity, and death related to coronavirus disease among 4.6 million adults in Catalonia, Spain, in 2020.