The Multi-Ethnic Study of Atherosclerosis Air Pollution Study (MESA Air) was the first U.S. research study to examine a group of people over a period of 10 years and measure directly how long-term exposure to air pollution contributes to the development of heart disease and can lead to heart attacks, abnormal heart rhythms, heart failure and death.

• 10-Year Study Links Faster Progression of Atherosclerosis to Air Pollution (PDF)(2 pp, 354 K)