The Health Effects Institute

The Health Effects Institute (HEI) is a nonprofit organization based in the United States that focuses on understanding the health impacts of air pollution. Founded in 1980, HEI conducts research and disseminates findings to inform policymakers, scientists, and the public about how various pollutants affect human health and the environment. By studying the effects of emissions from vehicles, industrial processes, and other sources, HEI aims to provide credible data to help shape regulations and improve air quality, ultimately promoting better health for communities.