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

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.

HEI releases 5-year strategic research plan

HEI has just published its new Strategic Research Plan 2025–2030. This document will guide the organization’s scientific research and related activities through the next five years.

New scoping review report available on the health effects of air pollution in East Africa

Exposure to air pollution continues to be an important risk factor for poor health across East Africa. Currently, air pollution is the second leading factor for deaths in the region, accounting for an estimated 294,000 deaths in 2021. HEI has published a new Scoping Review Report, “Health Effects of Air Pollution in East Africa: Current Evidence and Priorities for Future Action."

Three new reports on air pollution exposure and health

HEI recently published three Research Reports:

• Effect of Air Pollution Reductions on Mortality During the COVID-19 Lockdowns in Early 2020 (Research Report 224)
• Air Pollution Exposure, Prefrontal Connectivity, and Emotional Behavior in Early Adolescence (Research Report 225)
• Comparison of Long-Term Air Pollution Exposure from Mobile and Routine Monitoring, Low-Cost Sensors, and Dispersion Models (Research Report 226)

Congratulations to the following winners of the 2025 Jane Warren Award!

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New Satellite-Derived Air Quality Funding Opportunity

New study looks at impacts of emissions reductions on birth outcomes

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.

HEI Vice President Robert O'Keefe announces retirement

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Dear Friends, 

New State of Global Air Asia regional report details latest data on air quality and health impacts in Central, South and Southeast Asia

Air pollution is the leading environmental risk factor for poor health in Central, South and Southeast Asia. Residents across the three regions are routinely exposed to levels of air pollution above the guidelines set by the World Health Organization, yet there is limited funding to improve air quality across the regions. This new SoGA report covers 23 countries in Asia and highlights key data and trends for each region.

New partnership to advance data and science on air pollution and health in South Asia 

Air pollution is the leading environmental health risk globally, contributing to more than 8 million deaths in 2021. Beyond the large number of deaths, exposure to air pollution affects well-being, livelihoods, and economies across the globe. The challenge is particularly severe in South Asia, where air pollution ranks as the number one risk factor for deaths in most countries. Just a few weeks ago, major cities including Lahore, Pakistan, Delhi, India, and Dhaka, Bangladesh, experienced high levels of air pollution, with impacts on visibility, daily life, economy, and public health.