Health Effects Institute

The Health Effects Institute (HEI) is an independent organization that studies how air pollution impacts public health. It conducts rigorous scientific research to understand the health risks associated with pollutants from sources like vehicles, factories, and other human activities. HEI’s findings help inform policymakers and the public about ways to reduce health problems caused by air pollution, such as asthma and heart disease. Its work is trusted and widely used to improve air quality standards and protect community health. Essentially, HEI provides critical scientific evidence to support healthier environments.