Health Effects Institute (HEI)

The Health Effects Institute is an independent, nonprofit corporation chartered in 1980 to provide high-quality, impartial, and relevant science on the health effects of pollutants from motor vehicles and other sources in the environment. Supported jointly by the U.S. Environmental Protection Agency (EPA) and industry, HEI has funded 160 studies, published almost 100 Research Reports, and contributed important research findings on the health effects of a variety of air pollutants, including carbon monoxide, methanol, diesel exhaust particles, nitrogen oxides, and ozone. The current research programs focus on air toxics, ambient particles, and oxygenates added to gasoline, along with some continuing ozone research.