Particulate Matter

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New report assesses measurement error in personal exposures to outdoor air pollution

May 1, 2025

HEI has published a new Research Report, Investigating the Consequences of Measurement Error of Gradually More Sophisticated Long-Term Personal Exposure Models in Assessing Health Effects: The London Study (MELONS), which presents a study led by Klea Katsouyanni at Imperial College London.

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

Benjamin Barratt

Heather Walton

et al.

2025

Topics:

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.

Comparison of Long-Term Air Pollution Exposure from Mobile and Routine Monitoring, Low-Cost Sensors, and Dispersion Models

Research Report 226

Gerard Hoek

Femke Bouma

Nicole Janssen

Joost Wesseling

Sjoerd van Ratingen

Jules Kerckhoffs

et al.

2025

Topics:

Multipollutant Mixtures

Particulate Matter

Traffic-related

This report presents a study led by Gerard Hoek at Utrecht University, the Netherlands. Hoek and colleagues compared the performance of a suite of long-term exposure assessment models in the Netherlands for four air pollutants: ultrafine particles, black carbon, fine particulate matter, and nitrogen dioxide.

Air Pollution Exposure, Prefrontal Connectivity, and Emotional Behavior in Early Adolescence

Research Report 225

Megan Herting

Elisabeth Burnor

Hedyeh Ahmadi

Sandrah P Eckel

William Gauderman

Joel Schwartz

et al.

2025

Topics:

Nitrogen Oxides

Particulate Matter

This report presents a study led by Megan Herting of the University of Southern California, a recipient of HEI’s 2019 Walter A. Rosenblith New Investigator Award. Herting and colleagues examined whether childhood and prenatal exposure to residential outdoor fine particulate matter (PM_2.5) and nitrogen dioxide (NO₂) was associated with neurodevelopment over a 1-year period in a nationally representative cohort of children ages 9–10 in the United States.

Effect of Air Pollution Reductions on Mortality During the COVID-19 Lockdowns in Early 2020

Research Report 224

Kai Chen

Yiqun Ma

Anne Marb

Federica Nobile

Robert Dubrow

Massimo Stafoggia

et al.

2025

Topics:

Nitrogen Oxides

Particulate Matter

Accountability

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.

Study examines cardiometabolic effects of air pollutants, noise, and green space

December 18, 2024

HEI has published a new Research Report, Cardiometabolic Health Effects of Air Pollution, Noise, Green Space, and Socioeconomic Status: The HERMES 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.

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.

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Particulate Matter

New report assesses measurement error in personal exposures to outdoor air pollution

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

Comparison of Long-Term Air Pollution Exposure from Mobile and Routine Monitoring, Low-Cost Sensors, and Dispersion Models

Air Pollution Exposure, Prefrontal Connectivity, and Emotional Behavior in Early Adolescence

Effect of Air Pollution Reductions on Mortality During the COVID-19 Lockdowns in Early 2020

Study examines cardiometabolic effects of air pollutants, noise, and green space

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